Reaction Process: WikiPathways:WP3602
Metabolism overview related metabolites
find 72 related metabolites which is associated with chemical reaction(pathway) Metabolism overview
NH3 ⟶ Glutamic acid
Citric acid
Citric acid (citrate) is a tricarboxylic acid, an organic acid with three carboxylate groups. Citrate is an intermediate in the TCA cycle (also known as the Tricarboxylic Acid cycle, the Citric Acid cycle or Krebs cycle). The TCA cycle is a central metabolic pathway for all animals, plants, and bacteria. As a result, citrate is found in all living organisms, from bacteria to plants to animals. In the TCA cycle, the enzyme citrate synthase catalyzes the condensation of oxaloacetate with acetyl CoA to form citrate. Citrate then acts as the substrate for the enzyme known as aconitase and is then converted into aconitic acid. The TCA cycle ends with regeneration of oxaloacetate. This series of chemical reactions in the TCA cycle is the source of two-thirds of the food-derived energy in higher organisms. Citrate can be transported out of the mitochondria and into the cytoplasm, then broken down into acetyl-CoA for fatty acid synthesis, and into oxaloacetate. Citrate is a positive modulator of this conversion, and allosterically regulates the enzyme acetyl-CoA carboxylase, which is the regulating enzyme in the conversion of acetyl-CoA into malonyl-CoA (the commitment step in fatty acid synthesis). In short, citrate is transported into the cytoplasm, converted into acetyl CoA, which is then converted into malonyl CoA by acetyl CoA carboxylase, which is allosterically modulated by citrate. In mammals and other vertebrates, Citrate is a vital component of bone, helping to regulate the size of apatite crystals (PMID: 21127269). Citric acid is found in citrus fruits, most concentrated in lemons and limes, where it can comprise as much as 8\\\\\% of the dry weight of the fruit. Citric acid is a natural preservative and is also used to add an acidic (sour) taste to foods and carbonated drinks. Because it is one of the stronger edible acids, the dominant use of citric acid is as a flavoring and preservative in food and beverages, especially soft drinks and candies. Citric acid is an excellent chelating agent, binding metals by making them soluble. It is used to remove and discourage the buildup of limescale from boilers and evaporators. It can be used to treat water, which makes it useful in improving the effectiveness of soaps and laundry detergents. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. Intolerance to citric acid in the diet is known to exist. Little information is available as the condition appears to be rare, but like other types of food intolerance it is often described as a "pseudo-allergic" reaction. Citric acid appears as colorless, odorless crystals with an acid taste. Denser than water. (USCG, 1999) Citric acid is a tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. It has a role as a food acidity regulator, a chelator, an antimicrobial agent and a fundamental metabolite. It is a conjugate acid of a citrate(1-) and a citrate anion. A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium-chelating ability. Citric acid is one of the active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA on May 2020. It is also used in combination with magnesium oxide to form magnesium citrate, an osmotic laxative. Citric acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Anhydrous citric acid is a Calculi Dissolution Agent and Anti-coagulant. The mechanism of action of anhydrous citric acid is as an Acidifying Activity and Calcium Chelating Activity. The physiologic effect of anhydrous citric acid is by means of Decreased Coagulation Factor Activity. Anhydrous Citric Acid is a tricarboxylic acid found in citrus fruits. Citric acid is used as an excipient in pharmaceutical preparations due to its antioxidant properties. It maintains stability of active ingredients and is used as a preservative. It is also used as an acidulant to control pH and acts as an anticoagulant by chelating calcium in blood. A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. See also: Citric Acid Monohydrate (related). Citrate, also known as anhydrous citric acid or 2-hydroxy-1,2,3-propanetricarboxylic acid, belongs to tricarboxylic acids and derivatives class of compounds. Those are carboxylic acids containing exactly three carboxyl groups. Citrate is soluble (in water) and a weakly acidic compound (based on its pKa). Citrate can be found in a number of food items such as ucuhuba, loquat, bayberry, and longan, which makes citrate a potential biomarker for the consumption of these food products. Citrate can be found primarily in most biofluids, including saliva, sweat, feces, and blood, as well as throughout all human tissues. Citrate exists in all living species, ranging from bacteria to humans. In humans, citrate is involved in several metabolic pathways, some of which include the oncogenic action of succinate, the oncogenic action of fumarate, the oncogenic action of 2-hydroxyglutarate, and congenital lactic acidosis. Citrate is also involved in several metabolic disorders, some of which include 2-ketoglutarate dehydrogenase complex deficiency, pyruvate dehydrogenase deficiency (E2), fumarase deficiency, and glutaminolysis and cancer. Moreover, citrate is found to be associated with lung Cancer, tyrosinemia I, maple syrup urine disease, and propionic acidemia. A citrate is a derivative of citric acid; that is, the salts, esters, and the polyatomic anion found in solution. An example of the former, a salt is trisodium citrate; an ester is triethyl citrate. When part of a salt, the formula of the citrate ion is written as C6H5O73− or C3H5O(COO)33− . A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. Citric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=77-92-9 (retrieved 2024-07-01) (CAS RN: 77-92-9). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3]. Citric acid is a natural preservative and food tartness enhancer. Citric acid induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid causes renal toxicity in mice[1][2][3].
Fumaric acid
Fumaric acid appears as a colorless crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Combustible, though may be difficult to ignite. Used to make paints and plastics, in food processing and preservation, and for other uses. Fumaric acid is a butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. It has a role as a food acidity regulator, a fundamental metabolite and a geroprotector. It is a conjugate acid of a fumarate(1-). Fumaric acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Fumaric acid is a precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase. Fumarate is converted by fumarase to malate. A fumarate is a salt or ester of the organic compound fumaric acid, a dicarboxylic acid. Fumarate has recently been recognized as an oncometabolite. (A15199). As a food additive, fumaric acid is used to impart a tart taste to processed foods. It is also used as an antifungal agent in boxed foods such as cake mixes and flours, as well as tortillas. Fumaric acid is also added to bread to increase the porosity of the final baked product. It is used to impart a sour taste to sourdough and rye bread. In cake mixes, it is used to maintain a low pH and prevent clumping of the flours used in the mix. In fruit drinks, fumaric acid is used to maintain a low pH which, in turn, helps to stabilize flavor and color. Fumaric acid also prevents the growth of E. coli in beverages when used in combination with sodium benzoate. When added to wines, fumaric acid helps to prevent further fermentation and yet maintain low pH and eliminate traces of metallic elements. In this fashion, it helps to stabilize the taste of wine. Fumaric acid can also be added to dairy products, sports drinks, jams, jellies and candies. Fumaric acid helps to break down bonds between gluten proteins in wheat and helps to create a more pliable dough. Fumaric acid is used in paper sizing, printer toner, and polyester resin for making molded walls. Fumaric acid is a dicarboxylic acid. It is a precursor to L-malate in the Krebs tricarboxylic acid (TCA) cycle. It is formed by the oxidation of succinic acid by succinate dehydrogenase. Fumarate is converted by the enzyme fumarase to malate. Fumaric acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by fumarate. Fumaric acid is found to be associated with fumarase deficiency, which is an inborn error of metabolism. It is also a metabolite of Aspergillus. Produced industrially by fermentation of Rhizopus nigricans, or manufactured by catalytic or thermal isomerisation of maleic anhydride or maleic acid. Used as an antioxidant, acidulant, leavening agent and flavouring agent in foods. Present in raw lean fish. Dietary supplement. Used in powdered products since fumaric acid is less hygroscopic than other acids. A precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase (wikipedia). Fumaric acid is also found in garden tomato, papaya, wild celery, and star fruit. Fumaric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=110-17-8 (retrieved 2024-07-01) (CAS RN: 110-17-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite. Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite.
L-Glutamic acid
Glutamic acid (Glu), also known as L-glutamic acid or as glutamate, the name of its anion, is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (‚ÄìNH2) and carboxyl (‚ÄìCOOH) functional groups, along with a side chain (R group) specific to each amino acid. L-glutamic acid is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Glutamic acid is found in all organisms ranging from bacteria to plants to animals. It is classified as an acidic, charged (at physiological pH), aliphatic amino acid. In humans it is a non-essential amino acid and can be synthesized via alanine or aspartic acid via alpha-ketoglutarate and the action of various transaminases. Glutamate also plays an important role in the bodys disposal of excess or waste nitrogen. Glutamate undergoes deamination, an oxidative reaction catalysed by glutamate dehydrogenase leading to alpha-ketoglutarate. In many respects glutamate is a key molecule in cellular metabolism. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: Damage to mitochondria from excessively high intracellular Ca2+. Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimers disease. Glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization (http://en.wikipedia.org/wiki/Glutamic_acid). Glutamate was discovered in 1866 when it was extracted from wheat gluten (from where it got its name. Glutamate has an important role as a food additive and food flavoring agent. In 1908, Japanese researcher Kikunae Ikeda identified brown crystals left behind after the evaporation of a large amount of kombu broth (a Japanese soup) as glutamic acid. These crystals, when tasted, reproduced a salty, savory flavor detected in many foods, most especially in seaweed. Professor Ikeda termed this flavor umami. He then patented a method of mass-producing a crystalline salt of glutamic acid, monosodium glutamate. L-glutamic acid is an optically active form of glutamic acid having L-configuration. It has a role as a nutraceutical, a micronutrient, an Escherichia coli metabolite, a mouse metabolite, a ferroptosis inducer and a neurotransmitter. It is a glutamine family amino acid, a proteinogenic amino acid, a glutamic acid and a L-alpha-amino acid. It is a conjugate acid of a L-glutamate(1-). It is an enantiomer of a D-glutamic acid. A peptide that is a homopolymer of glutamic acid. L-Glutamic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Glutamic acid (Glu), also referred to as glutamate (the anion), is one of the 20 proteinogenic amino acids. It is not among the essential amino acids. Glutamate is a key molecule in cellular metabolism. In humans, dietary proteins are broken down by digestion into amino acids, which serves as metabolic fuel or other functional roles in the body. Glutamate is the most abundant fast excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, glutamate is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell. In the opposing post-synaptic cell, glutamate receptors, such as the NMDA receptor, bind glutamate and are activated. Because of its role in synaptic plasticity, it is believed that glutamic acid is involved in cognitive functions like learning and memory in the brain. Glutamate transporters are found in neuronal and glial membranes. They rapidly remove glutamate from the extracellular space. In brain injury or disease, they can work in reverse and excess glutamate can accumulate outside cells. This process causes calcium ions to enter cells via NMDA receptor channels, leading to neuronal damage and eventual cell death, and is called excitotoxicity. The mechanisms of cell death include: * Damage to mitochondria from excessively high intracellular Ca2+. * Glu/Ca2+-mediated promotion of transcription factors for pro-apoptotic genes, or downregulation of transcription factors for anti-apoptotic genes. Excitotoxicity due to glutamate occurs as part of the ischemic cascade and is associated with stroke and diseases like amyotrophic lateral sclerosis, lathyrism, and Alzheimers disease. glutamic acid has been implicated in epileptic seizures. Microinjection of glutamic acid into neurons produces spontaneous depolarization around one second apart, and this firing pattern is similar to what is known as paroxysmal depolarizing shift in epileptic attacks. This change in the resting membrane potential at seizure foci could cause spontaneous opening of voltage activated calcium channels, leading to glutamic acid release and further depolarization. A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM. See also: Monosodium Glutamate (active moiety of); Glatiramer Acetate (monomer of); Glatiramer (monomer of) ... View More ... obtained from acid hydrolysis of proteins. Since 1965 the industrial source of glutamic acid for MSG production has been bacterial fermentation of carbohydrate sources such as molasses and corn starch hydrolysate in the presence of a nitrogen source such as ammonium salts or urea. Annual production approx. 350000t worldwide in 1988. Seasoning additive in food manuf. (as Na, K and NH4 salts). Dietary supplement, nutrient Glutamic acid (symbol Glu or E;[4] the anionic form is known as glutamate) is an α-amino acid that is used by almost all living beings in the biosynthesis of proteins. It is a non-essential nutrient for humans, meaning that the human body can synthesize enough for its use. It is also the most abundant excitatory neurotransmitter in the vertebrate nervous system. It serves as the precursor for the synthesis of the inhibitory gamma-aminobutyric acid (GABA) in GABAergic neurons. Its molecular formula is C 5H 9NO 4. Glutamic acid exists in two optically isomeric forms; the dextrorotatory l-form is usually obtained by hydrolysis of gluten or from the waste waters of beet-sugar manufacture or by fermentation.[5][full citation needed] Its molecular structure could be idealized as HOOC−CH(NH 2)−(CH 2)2−COOH, with two carboxyl groups −COOH and one amino group −NH 2. However, in the solid state and mildly acidic water solutions, the molecule assumes an electrically neutral zwitterion structure −OOC−CH(NH+ 3)−(CH 2)2−COOH. It is encoded by the codons GAA or GAG. The acid can lose one proton from its second carboxyl group to form the conjugate base, the singly-negative anion glutamate −OOC−CH(NH+ 3)−(CH 2)2−COO−. This form of the compound is prevalent in neutral solutions. The glutamate neurotransmitter plays the principal role in neural activation.[6] This anion creates the savory umami flavor of foods and is found in glutamate flavorings such as MSG. In Europe, it is classified as food additive E620. In highly alkaline solutions the doubly negative anion −OOC−CH(NH 2)−(CH 2)2−COO− prevails. The radical corresponding to glutamate is called glutamyl. The one-letter symbol E for glutamate was assigned in alphabetical sequence to D for aspartate, being larger by one methylene –CH2– group.[7] DL-Glutamic acid is the conjugate acid of Glutamic acid, which acts as a fundamental metabolite. Comparing with the second phase of polymorphs α and β L-Glutamic acid, DL-Glutamic acid presents better stability[1]. DL-Glutamic acid is the conjugate acid of Glutamic acid, which acts as a fundamental metabolite. Comparing with the second phase of polymorphs α and β L-Glutamic acid, DL-Glutamic acid presents better stability[1]. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals. L-Glutamic acid is an excitatory amino acid neurotransmitter that acts as an agonist for all subtypes of glutamate receptors (metabolic rhodophylline, NMDA, and AMPA). L-Glutamic acid has an agonist effect on the release of DA from dopaminergic nerve endings. L-Glutamic acid can be used in the study of neurological diseases[1][2][3][4][5]. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.
Succinic acid
Succinic acid appears as white crystals or shiny white odorless crystalline powder. pH of 0.1 molar solution: 2.7. Very acid taste. (NTP, 1992) Succinic acid is an alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. It has a role as a nutraceutical, a radiation protective agent, an anti-ulcer drug, a micronutrient and a fundamental metabolite. It is an alpha,omega-dicarboxylic acid and a C4-dicarboxylic acid. It is a conjugate acid of a succinate(1-). A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Succinic acid is a dicarboxylic acid. The anion, succinate, is a component of the citric acid cycle capable of donating electrons to the electron transfer chain. Succinic acid is created as a byproduct of the fermentation of sugar. It lends to fermented beverages such as wine and beer a common taste that is a combination of saltiness, bitterness and acidity. Succinate is commonly used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. Succinate plays a role in the citric acid cycle, an energy-yielding process and is metabolized by succinate dehydrogenase to fumarate. Succinate dehydrogenase (SDH) plays an important role in the mitochondria, being both part of the respiratory chain and the Krebs cycle. SDH with a covalently attached FAD prosthetic group, binds enzyme substrates (succinate and fumarate) and physiological regulators (oxaloacetate and ATP). Oxidizing succinate links SDH to the fast-cycling Krebs cycle portion where it participates in the breakdown of acetyl-CoA throughout the whole Krebs cycle. Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e.g. malate. (A3509) Mutations in the four genes encoding the subunits of succinate dehydrogenase are associated with a wide spectrum of clinical presentations (i.e.: Huntingtons disease. (A3510). Succinate also acts as an oncometabolite. Succinate inhibits 2-oxoglutarate-dependent histone and DNA demethylase enzymes, resulting in epigenetic silencing that affects neuroendocrine differentiation. A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawleys Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851) Succinic acid (succinate) is a dicarboxylic acid. It is an important component of the citric acid or TCA cycle and is capable of donating electrons to the electron transfer chain. Succinate is found in all living organisms ranging from bacteria to plants to mammals. In eukaryotes, succinate is generated in the mitochondria via the tricarboxylic acid cycle (TCA). Succinate can readily be imported into the mitochondrial matrix by the n-butylmalonate- (or phenylsuccinate-) sensitive dicarboxylate carrier in exchange with inorganic phosphate or another organic acid, e. g. malate (PMID 16143825). Succinate can exit the mitochondrial matrix and function in the cytoplasm as well as the extracellular space. Succinate has multiple biological roles including roles as a metabolic intermediate and roles as a cell signalling molecule. Succinate can alter gene expression patterns, thereby modulating the epigenetic landscape or it can exhibit hormone-like signaling functions (PMID: 26971832). As such, succinate links cellular metabolism, especially ATP formation, to the regulation of cellular function. Succinate can be broken down or metabolized into fumarate by the enzyme succinate dehydrogenase (SDH), which is part of the electron transport chain involved in making ATP. Dysregulation of succinate synthesis, and therefore ATP synthesis, can happen in a number of genetic mitochondrial diseases, such as Leigh syndrome, and Melas syndrome. Succinate has been found to be associated with D-2-hydroxyglutaric aciduria, which is an inborn error of metabolism. Succinic acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by succinate. In humans, urinary succinic acid is produced by Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Enterobacter, Acinetobacter, Proteus mirabilis, Citrobacter frundii, Enterococcus faecalis (PMID: 22292465). Succinic acid is also found in Actinobacillus, Anaerobiospirillum, Mannheimia, Corynebacterium and Basfia (PMID: 22292465; PMID: 18191255; PMID: 26360870). Succinic acid is widely distributed in higher plants and produced by microorganisms. It is found in cheeses and fresh meats. Succinic acid is a flavouring enhancer, pH control agent [DFC]. Succinic acid is also found in yellow wax bean, swamp cabbage, peanut, and abalone. An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID S004 Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2]. Succinic acid is a potent and orally active anxiolytic agent. Succinic acid is an intermediate product of the tricarboxylic acid cycle. Succinic acid can be used as a precursor of many industrially important chemicals in food, chemical and pharmaceutical industries[1][2].
Oxoglutaric acid
Oxoglutaric acid, also known as alpha-ketoglutarate, alpha-ketoglutaric acid, AKG, or 2-oxoglutaric acid, is classified as a gamma-keto acid or a gamma-keto acid derivative. gamma-Keto acids are organic compounds containing an aldehyde substituted with a keto group on the C4 carbon atom. alpha-Ketoglutarate is considered to be soluble (in water) and acidic. alpha-Ketoglutarate is a key molecule in the TCA cycle, playing a fundamental role in determining the overall rate of this important metabolic process (PMID: 26759695). In the TCA cycle, AKG is decarboxylated to succinyl-CoA and carbon dioxide by AKG dehydrogenase, which functions as a key control point of the TCA cycle. Additionally, AKG can be generated from isocitrate by oxidative decarboxylation catalyzed by the enzyme known as isocitrate dehydrogenase (IDH). In addition to these routes of production, AKG can be produced from glutamate by oxidative deamination via glutamate dehydrogenase, and as a product of pyridoxal phosphate-dependent transamination reactions (mediated by branched-chain amino acid transaminases) in which glutamate is a common amino donor. AKG is a nitrogen scavenger and a source of glutamate and glutamine that stimulates protein synthesis and inhibits protein degradation in muscles. In particular, AKG can decrease protein catabolism and increase protein synthesis to enhance bone tissue formation in skeletal muscles (PMID: 26759695). Interestingly, enteric feeding of AKG supplements can significantly increase circulating plasma levels of hormones such as insulin, growth hormone, and insulin-like growth factor-1 (PMID: 26759695). It has recently been shown that AKG can extend the lifespan of adult C. elegans by inhibiting ATP synthase and TOR (PMID: 24828042). In combination with molecular oxygen, alpha-ketoglutarate is required for the hydroxylation of proline to hydroxyproline in the production of type I collagen. A recent study has shown that alpha-ketoglutarate promotes TH1 differentiation along with the depletion of glutamine thereby favouring Treg (regulatory T-cell) differentiation (PMID: 26420908). alpha-Ketoglutarate has been found to be associated with fumarase deficiency, 2-ketoglutarate dehydrogenase complex deficiency, and D-2-hydroxyglutaric aciduria, which are all inborn errors of metabolism (PMID: 8338207). Oxoglutaric acid has been found to be a metabolite produced by Corynebacterium and yeast (PMID: 27872963) (YMDB). [Spectral] 2-Oxoglutarate (exact mass = 146.02152) and S-Adenosyl-L-homocysteine (exact mass = 384.12159) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] 2-Oxoglutarate (exact mass = 146.02152) and (S)-Malate (exact mass = 134.02152) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Flavouring ingredient
Argininosuccinic acid disodium
C10H18N4O6 (290.12262880000003)
Arginosuccinic acid is a basic amino acid. Some cells synthesize it from citrulline, aspartic acid and use it as a precursor for arginine in the urea cycle or Citrulline-NO cycle. The enzyme that catalyzes the reaction is argininosuccinate synthetase. Argininosuccinic acid is a precursor to fumarate in the citric acid cycle via argininosuccinate lyase. Defects in the argininosuccinate lyase enzyme can lead to argininosuccinate lyase deficiency, which is an inborn error of metabolism. Argininosuccinate (ASA) lyase deficiency results in defective cleavage of ASA. This leads to an accumulation of ASA in cells and an excessive excretion of ASA in urine (argininosuccinic aciduria). In virtually all respects, this disorder shares the characteristics of other urea cycle defects. The most important characteristic of ASA lyase deficiency is its propensity to cause hyperammonemia in affected individuals. ASA in affected individuals is excreted by the kidney at a rate practically equivalent to the glomerular filtration rate (GFR). Whether ASA itself causes a degree of toxicity due to hepatocellular accumulation is unknown; such an effect could help explain hyperammonemia development in affected individuals. Regardless, the name of the disease is derived from the rapid clearance of ASA in urine, although elevated levels of ASA can be found in plasma. ASA lyase deficiency is associated with high mortality and morbidity rates. Symptoms of ASA lyase deficiency include anorexia, irritability rapid breathing, lethargy and vomiting. Extreme symptoms include coma and cerebral edema. Arginosuccinic acid is a basic amino acid. Some cells synthesize it from citrulline, aspartic acid and use it as a precursor for arginine in the urea cycle or Citrulline-NO cycle. The enzyme that catalyzes the reaction is argininosuccinate synthetase. Argininosuccinic acid is a precursor to fumarate in the citric acid cycle via argininosuccinate lyase. Defects in the arginosuccinate lyase enzyme can lead to arginosuccinate lyase deficiency. Argininosuccinate (ASA) lyase deficiency results in defective cleavage of ASA. This leads to an accumulation of ASA in cells and an excessive excretion of ASA in urine (arginosuccinic aciduria). In virtually all respects, this disorder shares the characteristics of other urea cycle defects. The most important characteristic of ASA lyase deficiency is its propensity to cause hyperammonemia in affected individuals. ASA in affected individuals is excreted by the kidney at a rate practically equivalent to the glomerular filtration rate (GFR). Whether ASA itself causes a degree of toxicity due to hepatocellular accumulation is unknown; such an effect could help explain hyperammonemia development in affected individuals. Regardless, the name of the disease is derived from the rapid clearance of ASA in urine, although elevated levels of ASA can be found in plasma. ASA lyase deficiency is associated with high mortality and morbidity rates. Symptoms of ASA lyase deficiency include anorexia, irritability rapid breathing, lethargy and vomiting. Extreme symptoms include coma and cerebral edema. [HMDB] KEIO_ID A039; [MS2] KO008844 KEIO_ID A039
D-Glycerate 3-phosphate
3-phospho-d-glyceric acid, also known as 3-phosphoglycerate or D-glycerate 3-phosphate, belongs to sugar acids and derivatives class of compounds. Those are compounds containing a saccharide unit which bears a carboxylic acid group. 3-phospho-d-glyceric acid is soluble (in water) and a moderately acidic compound (based on its pKa). 3-phospho-d-glyceric acid can be found in a number of food items such as towel gourd, orange mint, guava, and mulberry, which makes 3-phospho-d-glyceric acid a potential biomarker for the consumption of these food products. 3-phospho-d-glyceric acid can be found primarily in saliva. 3-phospho-d-glyceric acid exists in all living species, ranging from bacteria to humans. (2R)-2-Hydroxy-3-(phosphonatooxy)propanoate, also known as 3-phospho-(R)-glycerate or D-glycerate 3-phosphate, belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group (2R)-2-Hydroxy-3-(phosphonatooxy)propanoate is a drug (2R)-2-hydroxy-3-(phosphonatooxy)propanoate has been detected, but not quantified, in several different foods, such as poppies, small-leaf lindens, lupines, pomegranates, and kombus. These are compounds containing a saccharide unit which bears a carboxylic acid group.
Crotonoyl-CoA
Crotonoyl-CoA is an important component in several metabolic pathways, notably fatty acid and amino acid metabolism. It is the substrate of a group of enzymes acyl-Coenzyme A oxidases 1, 2, 3 (E.C.: 1.3.3.6) corresponding to palmitoyl, branched chain, and pristanoyl, respectively, in the peroxisomal fatty acid beta-oxidation, producing hydrogen peroxide. Abnormality of this group of enzymes is linked to coma, dehydration, diabetes, fatty liver, hyperinsulinemia, hyperlipidemia, and leukodystrophy. It is also a substrate of a group of enzymes called acyl-Coenzyme A dehydrogenase (E.C.:1.3.99-, including 1.3.99.2, 1.3.99.3) in the metabolism of fatty acids or branched chain amino acids in the mitochondria (Rozen et al., 1994). Acyl-Coenzyme A dehydrogenase (1.3.99.3) has shown to contribute to kidney-associated diseases, such as adrenogential syndrome, kidney failure, kidney tubular necrosis, homocystinuria, as well as other diseases including cretinism, encephalopathy, hypoglycemia, medium chain acyl-CoA dehydrogenase deficiency. The gene (ACADS) also plays a role in theta oscillation during sleep. In addition, crotonoyl-CoA is the substrate of enoyl coenzyme A hydratase (E.C.4.2.1.17) in the mitochondria during lysine degradation and tryptophan metabolism, benzoate degradation via CoA ligation; in contrast it is the product of this enzyme in the butanoate metabolism. Moreover, it is produced from multiple enzymes in the butanoate metabolism pathway, including 3-Hydroxybutyryl-CoA dehydratase (E.C.:4.2.1.55), glutaconyl-CoA decarboxylase (E.C.: 4.1.1.70), vinylacetyl-CoA Δ-isomerase (E.C.: 5.3.3.3), and trans-2-enoyl-CoA reductase (NAD+) (E.C.: 1.3.1.44). In lysine degradation and tryptophan metabolism, crotonoyl CoA is produced by glutaryl-Coenzyme A dehydrogenase (E.C.:1.3.99.7) lysine and tryptophan metabolic pathway. This enzyme is linked to type-1glutaric aciduria, metabolic diseases, movement disorders, myelinopathy, and nervous system diseases. [HMDB] Crotonoyl-CoA (CAS: 992-67-6) is an important component in several metabolic pathways, notably fatty acid and amino acid metabolism. It is the substrate of acyl-coenzyme A oxidases 1, 2, and 3 (EC 1.3.3.6) corresponding to palmitoyl, branched-chain, and pristanoyl, respectively. In peroxisomal fatty acid beta-oxidation, these enzymes produce hydrogen peroxide. Abnormalities in this group of enzymes are linked to coma, dehydration, diabetes, fatty liver, hyperinsulinemia, hyperlipidemia, and leukodystrophy. Crotonoyl-CoA is also a substrate of a group of enzymes called acyl-coenzyme A dehydrogenases (EC 1.3.99-, 1.3.99.2, 1.3.99.3) in the metabolism of fatty acids or branched-chain amino acids in the mitochondria (PMID: 7698750). Acyl-coenzyme A dehydrogenase has been shown to contribute to kidney-associated diseases, such as adrenogential syndrome, kidney failure, kidney tubular necrosis, homocystinuria, as well as other diseases including cretinism, encephalopathy, hypoglycemia, and medium-chain acyl-CoA dehydrogenase deficiency. The gene (ACADS) also plays a role in theta oscillation during sleep. In addition, crotonoyl-CoA is the substrate of enoyl-coenzyme A hydratase (EC 4.2.1.17) in the mitochondria during lysine degradation and tryptophan metabolism as well as benzoate degradation via CoA ligation. Crotonoyl-CoA is the product of this enzyme in butanoate metabolism. Moreover, it is produced from multiple enzymes in the butanoate metabolism pathway, including 3-hydroxybutyryl-CoA dehydratase (EC 4.2.1.55), glutaconyl-CoA decarboxylase (EC 4.1.1.70), vinylacetyl-CoA delta-isomerase (EC 5.3.3.3), and trans-2-enoyl-CoA reductase (NAD+) (EC 1.3.1.44). In lysine degradation and tryptophan metabolism, crotonoyl-CoA is produced by glutaryl-coenzyme A dehydrogenase (EC 1.3.99.7). This enzyme is linked to glutaric aciduria type I, metabolic diseases, movement disorders, myelinopathy, and nervous system diseases.
Decanoyl-CoA (n-C10:0CoA)
Decanoyl CoA is a human liver acyl-CoA ester. It is selected to determine apparent kinetic constants for human liver acyl-CoA due to its relevance to the human diseases with cellular accumulation of this esters, especially to metabolic defects in the acyl-CoA dehydrogenation steps of the branched-chain amino acids, lysine, 5-hydroxy lysine, tryptophan, and fatty acid oxidation pathways. It is concluded that the substrate concentration is decisive for the glycine conjugate formation and that the occurrence in urine of acylglycines reflects an intramitochondrial accumulation of the corresponding acyl-CoA ester. (PMID: 3707752) [HMDB] Decanoyl CoA is a human liver acyl-CoA ester. It is selected to determine apparent kinetic constants for human liver acyl-CoA due to its relevance to the human diseases with cellular accumulation of this esters, especially to metabolic defects in the acyl-CoA dehydrogenation steps of the branched-chain amino acids, lysine, 5-hydroxy lysine, tryptophan, and fatty acid oxidation pathways. It is concluded that the substrate concentration is decisive for the glycine conjugate formation and that the occurrence in urine of acylglycines reflects an intramitochondrial accumulation of the corresponding acyl-CoA ester. (PMID: 3707752). COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
butanoyl-CoA
C25H42N7O17P3S (837.1570672000001)
Butyryl-coa, also known as 4:0-coa or butanoyl-coa, is a member of the class of compounds known as acyl coas. Acyl coas are organic compounds containing a coenzyme A substructure linked to an acyl chain. Thus, butyryl-coa is considered to be a fatty ester lipid molecule. Butyryl-coa is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). Butyryl-coa can be synthesized from coenzyme A and butyric acid. Butyryl-coa is also a parent compound for other transformation products, including but not limited to, (2S,3S)-3-hydroxy-2-methylbutanoyl-CoA, acetoacetyl-CoA, and 2-methylacetoacetyl-CoA. Butyryl-coa can be found in a number of food items such as wild carrot, persian lime, redcurrant, and arrowroot, which makes butyryl-coa a potential biomarker for the consumption of these food products. Butyryl-coa may be a unique E.coli metabolite.
L-Arginine
Arginine (Arg), also known as L-argninine, belongs to the class of organic compounds known as L-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-asparagine is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Arginine is found in all organisms ranging from bacteria to plants to animals. Arginine is an essential amino acid that is physiologically active in the L-form. It is classified as a charged, basic, aliphatic amino acid. Arginine is considered to be a basic amino acid as it has a strongly basic guanidinium group. With a pKa of 12.48, the guanidinium group is positively charged in neutral, acidic, and even most basic environments. Because of the conjugation between the double bond and the nitrogen lone pairs, the positive charge is delocalized. This group is able to form multiple H-bonds. In mammals, arginine is formally classified as a semi-essential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. Infants are unable to effectively synthesize arginine, making it nutritionally essential for infants. Adults, however, are able to synthesize arginine in the urea cycle. L-Arginine is an amino acid that has numerous functions in the body. It helps dispose of ammonia, is used to make compounds such as nitric oxide, creatine, L-glutamate, and L-proline, and it can be converted into glucose and glycogen if needed. Arginine also plays an important role in cell division, immunity and wound healing. Arginine is the immediate precursor of nitric oxide (NO), an important signaling molecule which can act as a second messenger, as well as an intercellular messenger which regulates vasodilation, and also has functions in the immune systems reaction to infection. Nitric oxide is made via the enzyme nitric oxide synthase (PMID 10690324). Arginine is also a precursor for several important nitrogen-containing compounds including urea, ornithine, and agmatine. Arginine is necessary for the synthesis of creatine and can be used for the synthesis of polyamines (mainly through ornithine and to a lesser degree through agmatine, citrulline, and glutamate.) The presence of asymmetric dimethylarginine (ADMA) in serum or plasma, a close relative of argninine, inhibits the nitric oxide synthase reaction. ADMA is considered a marker for vascular disease, just as L-arginine is considered a sign of a healthy endothelium. In large doses, L-arginine also stimulates the release of the hormones growth hormone and prolactin. Arginine is a known inducer of mTOR (mammalian target of rapamycin) and is responsible for inducing protein synthesis through the mTOR pathway. mTOR inhibition by rapamycin partially reduces arginine-induced protein synthesis (PMID: 20841502). Catabolic disease states such as sepsis, injury, and cancer cause an increase in arginine utilization, which can exceed normal body production, leading to arginine depletion. Arginine also activates AMP kinase (AMPK) which then stimulates skeletal muscle fatty acid oxidation and muscle glucose uptake, thereby increasing insulin secretion by pancreatic beta-cells (PMID: 21311355). Arginine is found in plant and animal proteins, such as dairy products, meat, poultry, fish, and nuts. The ratio of L-arginine to lysine is also important: soy and other plant proteins have more L-arginine than animal sources of protein. [Spectral] L-Arginine (exact mass = 174.11168) and L-Histidine (exact mass = 155.06948) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. L-Arginine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=74-79-3 (retrieved 2024-06-29) (CAS RN: 74-79-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline[1][2]. L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline[1][2].
L-Aspartic acid
Aspartic acid (Asp), also known as L-aspartic acid or as aspartate, the name of its anion, is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-aspartic acid is one of 20 proteinogenic amino acids, i.e., the amino acids used in the biosynthesis of proteins. Aspartic acid is found in all organisms ranging from bacteria to plants to animals. It is classified as an acidic, charged (at physiological pH), aliphatic amino acid. In humans, aspartic acid is a nonessential amino acid derived from glutamic acid by enzymes using vitamin B6. However, in the human body, aspartate is most frequently synthesized through the transamination of oxaloacetate. A non-essential amino acid is an amino acid that can be synthesized from central metabolic pathway intermediates in humans and is not required in the diet. As its name indicates, aspartic acid is the carboxylic acid analog of asparagine. The D-isomer of aspartic acid (D-aspartic acid) is one of two D-amino acids commonly found in mammals. Aspartic acid was first discovered in 1827 by Auguste-Arthur Plisson and Étienne Ossian Henry by hydrolysis of asparagine, which had been isolated from asparagus juice in 1806. Aspartate has many biochemical roles. It is a neurotransmitter, a metabolite in the urea cycle and it participates in gluconeogenesis. It carries reducing equivalents in the malate-aspartate shuttle, which utilizes the ready interconversion of aspartate and oxaloacetate, which is the oxidized (dehydrogenated) derivative of malic acid. Aspartate donates one nitrogen atom in the biosynthesis of inosine, the precursor to the purine bases which are key to DNA biosynthesis. In addition, aspartic acid acts as a hydrogen acceptor in a chain of ATP synthase. Aspartic acid is a major excitatory neurotransmitter, which is sometimes found to be increased in epileptic and stroke patients. It is decreased in depressed patients and in patients with brain atrophy. As a neurotransmitter, aspartic acid may provide resistance to fatigue and thus lead to endurance, although the evidence to support this idea is not strong (Wikipedia). Aspartic acid supplements are being evaluated. Five grams can raise blood levels. Magnesium and zinc may be natural inhibitors of some of the actions of aspartic acid. Aspartic acid, when chemically coupled with the amino acid D-phenylalanine, is a part of a natural sweetener, aspartame. This sweetener is an advance in artificial sweeteners, and is probably safe in normal doses to all except phenylketonurics. Aspartic acid may be a significant immunostimulant of the thymus and can protect against some of the damaging effects of radiation. Aspartic acid is found in higher abundance in: oysters, luncheon meats, sausage meat, wild game, sprouting seeds, oat flakes, avocado, asparagus, young sugarcane, and molasses from sugar beets. [Spectral] L-Aspartate (exact mass = 133.03751) and Taurine (exact mass = 125.01466) and L-Asparagine (exact mass = 132.05349) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] L-Aspartate (exact mass = 133.03751) and L-Threonine (exact mass = 119.05824) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly. L-Aspartic acid is is an amino acid, shown to be a suitable proagent for colon-specific agent deliverly.
D-Ribose 5-phosphate
Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Uridine diphosphate glucose
Uridine diphosphate glucose, also known as UDP-glucose or UDP-alpha-D-glucose, belongs to the class of organic compounds known as pyrimidine nucleotide sugars. These are pyrimidine nucleotides bound to a saccharide derivative through the terminal phosphate group. Uridine diphosphate glucose exists in all living species, ranging from bacteria to plants to humans. Uridine diphosphate glucose is a key intermediate in carbohydrate metabolism. For instance, UDP-glucose is a precursor of glycogen and can be converted into UDP-galactose and UDP-glucuronic acid, which can then be used as substrates by the enzymes that make polysaccharides containing galactose and glucuronic acid. UDP-glucose can also be used as a precursor for the biosynthesis of sucrose, lipopolysaccharides and glycosphingolipids. Within humans, uridine diphosphate glucose participates in a number of enzymatic reactions. In particular, ceramide (D18:1/18:0) and uridine diphosphate glucose can be converted into glucosylceramide (D18:1/18:0) and uridine 5-diphosphate through the action of the enzyme ceramide glucosyltransferase. In addition, glucosylceramide (D18:1/18:0) and uridine diphosphate glucose can be biosynthesized from lactosylceramide (D18:1/18:0) and uridine 5-diphosphate through its interaction with the enzyme Beta-1,4-galactosyltransferase 6. A key intermediate in carbohydrate metabolism. Serves as a precursor of glycogen, can be metabolized into UDPgalactose and UDPglucuronic acid which can then be incorporated into polysaccharides as galactose and glucuronic acidand is also serves as a precursor of sucrose lipopolysaccharides, and glycosphingolipids.; It is a precursor of glycogen and can be converted into UDP-galactose and UDP-glucuronic acid, which can then be used as substrates by the enzymes that make polysaccharides containing galactose and glucuronic acid.; Uridine diphosphate glucose (uracil-diphosphate glucose, UDP-glucose) is a nucleotide sugar. It is involved in glycosyltransferase reactions in metabolism. Udp-glucose is found in many foods, some of which are skunk currant, black salsify, winter squash, and red algae. Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Phosphoenolpyruvic acid
Phosphoenolpyruvate, also known as pep or 2-(phosphonooxy)-2-propenoic acid, is a member of the class of compounds known as phosphate esters. Phosphate esters are organic compounds containing phosphoric acid ester functional group, with the general structure R1P(=O)(R2)OR3. R1,R2 = O,N, or halogen atom; R3 = organyl group. Phosphoenolpyruvate is soluble (in water) and an extremely strong acidic compound (based on its pKa). Phosphoenolpyruvate can be found in a number of food items such as okra, endive, chestnut, and dandelion, which makes phosphoenolpyruvate a potential biomarker for the consumption of these food products. Phosphoenolpyruvate can be found primarily in blood, cellular cytoplasm, and saliva, as well as in human prostate tissue. Phosphoenolpyruvate exists in all living species, ranging from bacteria to humans. In humans, phosphoenolpyruvate is involved in several metabolic pathways, some of which include glycolysis, amino sugar metabolism, gluconeogenesis, and glycogenosis, type IC. Phosphoenolpyruvate is also involved in several metabolic disorders, some of which include glycogen storage disease type 1A (GSD1A) or von gierke disease, salla disease/infantile sialic acid storage disease, phosphoenolpyruvate carboxykinase deficiency 1 (PEPCK1), and pyruvate dehydrogenase complex deficiency. Phosphoenolpyruvate (2-phosphoenolpyruvate, PEP) as the ester derived from the enol of pyruvate and phosphate. It exists as an anion; the parent acid, which is only of theoretical interest, is phosphoenolpyruvic acid. PEP is an important intermediate in biochemistry. It has the highest-energy phosphate bond found (−61.9 kJ/mol) in living organisms, and is involved in glycolysis and gluconeogenesis. In plants, it is also involved in the biosynthesis of various aromatic compounds, and in carbon fixation; in bacteria, it is also used as the source of energy for the phosphotransferase system . Phosphoenolpyruvate (PEP) is an important chemical compound in biochemistry. It has a high energy phosphate bond, and is involved in glycolysis and gluconeogenesis. In glycolysis, PEP is formed by the action of the enzyme enolase on 2-phosphoglycerate. Metabolism of PEP to pyruvate by pyruvate kinase (PK) generates 1 molecule of adenosine triphosphate (ATP) via substrate-level phosphorylation. ATP is one of the major currencies of chemical energy within cells. In gluconeogenesis, PEP is formed from the decarboxylation of oxaloacetate and hydrolysis of 1 guanosine triphosphate molecule. This reaction is catalyzed by the enzyme phosphoenolpyruvate carboxykinase (PEPCK). This reaction is a rate-limiting step in gluconeogenesis. (wikipedia). [Spectral] Phosphoenolpyruvate (exact mass = 167.98237) and 6-Phospho-D-gluconate (exact mass = 276.02463) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID P007
DL-Malic acid
Malic acid (CAS: 6915-15-7) is a tart-tasting organic dicarboxylic acid that plays a role in many sour or tart foods. Apples contain malic acid, which contributes to the sourness of a green apple. Malic acid can make a wine taste tart, although the amount decreases with increasing fruit ripeness (Wikipedia). In its ionized form, malic acid is called malate. Malate is an intermediate of the TCA cycle along with fumarate. It can also be formed from pyruvate as one of the anaplerotic reactions. In humans, malic acid is both derived from food sources and synthesized in the body through the citric acid cycle or Krebs cycle which takes place in the mitochondria. Malates importance to the production of energy in the body during both aerobic and anaerobic conditions is well established. Under aerobic conditions, the oxidation of malate to oxaloacetate provides reducing equivalents to the mitochondria through the malate-aspartate redox shuttle. During anaerobic conditions, where a buildup of excess reducing equivalents inhibits glycolysis, malic acids simultaneous reduction to succinate and oxidation to oxaloacetate is capable of removing the accumulating reducing equivalents. This allows malic acid to reverse hypoxias inhibition of glycolysis and energy production. In studies on rats, it has been found that only tissue malate is depleted following exhaustive physical activity. Other key metabolites from the citric acid cycle needed for energy production were found to be unchanged. Because of this, a deficiency of malic acid has been hypothesized to be a major cause of physical exhaustion. Notably, the administration of malic acid to rats has been shown to elevate mitochondrial malate and increase mitochondrial respiration and energy production. Malic acid has been found to be a metabolite in Aspergillus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987). Acidulant, antioxidant, flavouring agent, flavour enhancer. Not for use in baby foods (GRAS) Malic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=617-48-1 (retrieved 2024-07-01) (CAS RN: 6915-15-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. (S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a dicarboxylic acid in naturally occurring form, contributes to the pleasantly sour taste of fruits and is used as a food additive. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods. Malic acid (Hydroxybutanedioic acid) is a dicarboxylic acid that is naturally found in fruits such as apples and pears. It plays a role in many sour or tart foods.
Oxaloacetate
Oxalacetic acid, also known as oxaloacetic acid, keto-oxaloacetate or 2-oxobutanedioate, belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms. Oxalacetic acid is a metabolic intermediate in many processes that occur in animals and plants. It takes part in gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, fatty acid synthesis and the citric acid cycle. Oxalacetic acid exists in all living species, ranging from bacteria to plants to humans. Within humans, oxalacetic acid participates in a number of enzymatic reactions. In particular, oxalacetic acid is an intermediate of the citric acid cycle, where it reacts with acetyl-CoA to form citrate, catalyzed by citrate synthase. It is also involved in gluconeogenesis and the urea cycle. In gluconeogenesis oxaloacetate is decarboxylated and phosphorylated by phosphoenolpyruvate carboxykinase and becomes 2-phosphoenolpyruvate using guanosine triphosphate (GTP) as phosphate source. In the urea cycle, malate is acted on by malate dehydrogenase to become oxaloacetate, producing a molecule of NADH. After that, oxaloacetate can be recycled to aspartate, as this recycling maintains the flow of nitrogen into the cell. In mice, injections of oxalacetic acid have been shown to promote brain mitochondrial biogenesis, activate the insulin signaling pathway, reduce neuroinflammation and activate hippocampal neurogenesis (PMID: 25027327). Oxalacetic acid has also been reported to reduce hyperglycemia in type II diabetes and to extend longevity in C. elegans (PMID: 25027327). Outside of the human body, oxalacetic acid has been detected, but not quantified in, several different foods, such as Persian limes, lemon balms, wild rice, canola, and peanuts. This could make oxalacetic acid a potential biomarker for the consumption of these foods. Oxalacetic acid, also known as ketosuccinic acid or oxaloacetate, belongs to short-chain keto acids and derivatives class of compounds. Those are keto acids with an alkyl chain the contains less than 6 carbon atoms. Thus, oxalacetic acid is considered to be a fatty acid lipid molecule. Oxalacetic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Oxalacetic acid can be synthesized from succinic acid. Oxalacetic acid can also be synthesized into oxaloacetic acid 4-methyl ester. Oxalacetic acid can be found in a number of food items such as daikon radish, sacred lotus, cucurbita (gourd), and tarragon, which makes oxalacetic acid a potential biomarker for the consumption of these food products. Oxalacetic acid can be found primarily in cellular cytoplasm, cerebrospinal fluid (CSF), and urine, as well as in human liver tissue. Oxalacetic acid exists in all living species, ranging from bacteria to humans. In humans, oxalacetic acid is involved in several metabolic pathways, some of which include the oncogenic action of succinate, the oncogenic action of 2-hydroxyglutarate, glycogenosis, type IB, and the oncogenic action of fumarate. Oxalacetic acid is also involved in several metabolic disorders, some of which include the oncogenic action of l-2-hydroxyglutarate in hydroxygluaricaciduria, transfer of acetyl groups into mitochondria, argininemia, and 2-ketoglutarate dehydrogenase complex deficiency. Moreover, oxalacetic acid is found to be associated with anoxia. C274 - Antineoplastic Agent > C177430 - Agent Targeting Cancer Metabolism C26170 - Protective Agent > C1509 - Neuroprotective Agent Oxaloacetic acid (2-Oxosuccinic acid) is a metabolic intermediate involved in several ways, such as citric acid cycle, gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, and fatty acid synthesis[1][2]. Oxaloacetic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=328-42-7 (retrieved 2024-10-17) (CAS RN: 328-42-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Octanoyl-CoA
C29H50N7O17P3S (893.2196640000001)
Octanoyl-CoA is a substrate for Trifunctional enzyme beta subunit (mitochondrial), Acyl-coenzyme A oxidase 1 (peroxisomal), 3-ketoacyl-CoA thiolase (mitochondrial), 3-ketoacyl-CoA thiolase (peroxisomal), Nuclear receptor-binding factor 1, Acyl-CoA dehydrogenase (long-chain specific, mitochondrial), Acyl-coenzyme A oxidase 3 (peroxisomal), HPDHase, Acyl-CoA dehydrogenase (medium-chain specific, mitochondrial), Acyl-coenzyme A oxidase 2 (peroxisomal) and Peroxisomal carnitine O-octanoyltransferase. [HMDB]. Octanoyl-CoA is found in many foods, some of which are millet, loganberry, horseradish, and sea-buckthornberry. Octanoyl-CoA is a substrate for Trifunctional enzyme beta subunit (mitochondrial), Acyl-coenzyme A oxidase 1 (peroxisomal), 3-ketoacyl-CoA thiolase (mitochondrial), 3-ketoacyl-CoA thiolase (peroxisomal), Nuclear receptor-binding factor 1, Acyl-CoA dehydrogenase (long-chain specific, mitochondrial), Acyl-coenzyme A oxidase 3 (peroxisomal), HPDHase, Acyl-CoA dehydrogenase (medium-chain specific, mitochondrial), Acyl-coenzyme A oxidase 2 (peroxisomal) and Peroxisomal carnitine O-octanoyltransferase.
Glycerol 3-phosphate
Glycerol 3-phosphate, also known as glycerophosphoric acid or alpha-glycerophosphorate, is a member of the class of compounds known as glycerophosphates. Glycerophosphates are compounds containing a glycerol linked to a phosphate group. Glycerol 3-phosphate is soluble (in water) and a moderately acidic compound (based on its pKa). Glycerol 3-phosphate can be found in a number of food items such as sacred lotus, common oregano, mixed nuts, and yautia, which makes glycerol 3-phosphate a potential biomarker for the consumption of these food products. Glycerol 3-phosphate can be found primarily in blood, feces, saliva, and urine, as well as in human prostate tissue. Glycerol 3-phosphate exists in all living species, ranging from bacteria to humans. In humans, glycerol 3-phosphate is involved in several metabolic pathways, some of which include cardiolipin biosynthesis cl(i-12:0/i-21:0/a-21:0/i-21:0), cardiolipin biosynthesis cl(i-12:0/a-25:0/i-13:0/i-12:0), cardiolipin biosynthesis cl(i-13:0/i-21:0/i-21:0/a-25:0), and cardiolipin biosynthesis cl(i-13:0/a-25:0/i-18:0/a-13:0). Glycerol 3-phosphate is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis tg(i-24:0/19:0/16:0), de novo triacylglycerol biosynthesis TG(16:0/22:4(7Z,10Z,13Z,16Z)/16:1(9Z)), de novo triacylglycerol biosynthesis TG(18:0/18:3(9Z,12Z,15Z)/14:1(9Z)), and de novo triacylglycerol biosynthesis TG(18:3(6Z,9Z,12Z)/22:5(4Z,7Z,10Z,13Z,16Z)/20:2(11Z,14Z)). Glycerol 3-phosphate is a chemical intermediate in the glycolysis metabolic pathway. It is commonly confused with the similarly named glycerate 3-phosphate or glyceraldehyde 3-phosphate. Glycerol 3-phosphate is produced from glycerol, the triose sugar backbone of triglycerides and glycerophospholipids, by the enzyme glycerol kinase. Glycerol 3-phospate may then be converted by dehydrogenation to dihydroxyacetone phosphate (DHAP) by the enzyme glycerol-3-phosphate dehydrogenase. DHAP can then be rearranged into glyceraldehyde 3-phosphate (GA3P) by triose phosphate isomerase (TIM), and feed into glycolysis. The glycerol 3-phosphate shuttle is used to rapidly regenerate NAD+ in the brain and skeletal muscle cells of mammals (wikipedia). Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G072
Sedoheptulose 7-phosphate
KEIO_ID S083
D-Ribulose 5-phosphate
D-Ribulose 5-phosphate is a metabolite in the Pentose phosphate pathway, Pentose and glucuronate interconversions, and in the Riboflavin metabolism (KEGG) [HMDB]. D-Ribulose 5-phosphate is found in many foods, some of which are olive, cocoa bean, common chokecherry, and orange mint. D-Ribulose 5-phosphate is a metabolite in the following pathways: pentose phosphate pathway, pentose and glucuronate interconversions, and riboflavin metabolism (KEGG). Acquisition and generation of the data is financially supported in part by CREST/JST.
α-D-Glucose-1-phosphate
Glucose 1-phosphate (also called cori ester) is a glucose molecule with a phosphate group on the 1-carbon. It can exist in either the α- or β-anomeric form. Glucose 1-phosphate belongs to the class of organic compounds known as monosaccharide phosphates. These are monosaccharides comprising a phosphated group linked to the carbohydrate unit. Glucose 1-phosphate is the direct product of the reaction in which glycogen phosphorylase cleaves off a molecule of glucose from a greater glycogen structure. It cannot travel down many metabolic pathways and must be interconverted by the enzyme phosphoglucomutase in order to become glucose 6-phosphate. Free glucose 1-phosphate can also react with UTP to form UDP-glucose. It can then return to the greater glycogen structure via glycogen synthase. *Found widely in both plants and animals. A precursor of starch in plants and of glycogen in animals. [CCD] Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from COVID-19 Disease Map KEIO_ID G020 Corona-virus KEIO_ID G115 Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Glucose
Glucose, also known as D-glucose or dextrose, is a member of the class of compounds known as hexoses. Hexoses are monosaccharides in which the sugar unit is a is a six-carbon containing moiety. Glucose contains an aldehyde group and is therefore referred to as an aldohexose. The glucose molecule can exist in an open-chain (acyclic) and ring (cyclic) form, the latter being the result of an intramolecular reaction between the aldehyde C atom and the C-5 hydroxyl group to form an intramolecular hemiacetal. In aqueous solution, both forms are in equilibrium and at pH 7 the cyclic one is predominant. Glucose is a neutral, hydrophilic molecule that readily dissolves in water. It exists as a white crystalline powder. Glucose is the primary source of energy for almost all living organisms. As such, it is the most abundant monosaccharide and the most widely used aldohexose in living organisms. When not circulating freely in blood (in animals) or resin (in plants), glucose is stored as a polymer. In plants it is mainly stored as starch and amylopectin and in animals as glycogen. Glucose is produced by plants through the photosynthesis using sunlight, water and carbon dioxide where it is used as an energy and a carbon source Glucose is particularly abundant in fruits and other parts of plants in its free state. Foods that are particularly rich in glucose are honey, agave, molasses, apples (2g/100g), grapes (8g/100g), oranges (8.5g/100g), jackfruit, dried apricots, dates (32 g/100g), bananas (5.8 g/100g), grape juice, sweet corn, Glucose is about 75\\\\% as sweet as sucrose and about 50\\\\% as sweet as fructose. Sweetness is detected through the binding of sugars to the T1R3 and T1R2 proteins, to form a G-protein coupled receptor that is the sweetness receptor in mammals. Glucose was first isolated from raisins in 1747 by the German chemist Andreas Marggraf. It was discovered in grapes by Johann Tobias Lowitz in 1792 and recognized as different from cane sugar (sucrose). Industrially, glucose is mainly used for the production of fructose and in the production of glucose-containing foods. In foods, it is used as a sweetener, humectant, to increase the volume and to create a softer mouthfeel. Various sources of glucose, such as grape juice (for wine) or malt (for beer), are used for fermentation to ethanol during the production of alcoholic beverages. Glucose is found in many plants as glucosides. A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolyzed by purely chemical means or decomposed by fermentation or enzymes. Glucose can be obtained by the hydrolysis of carbohydrates such as milk sugar (lactose), cane sugar (sucrose), maltose, cellulose, and glycogen. Glucose is a building block of the disaccharides lactose and sucrose (cane or beet sugar), of oligosaccharides such as raffinose and of polysaccharides such as starch and amylopectin, glycogen or cellulose. For most animals, while glucose is normally obtained from the diet, it can also be generated via gluconeogenesis. Gluconeogenesis is a metabolic pathway that results in the generation of glucose from certain non-carbohydrate carbon substrates. Gluconeogenesis is a ubiquitous process, present in plants, animals, fungi, bacteria, and other microorganisms. In vertebrates, gluconeogenesis takes place mainly in the liver and, to a lesser extent, in the cortex of the kidneys. In humans the main gluconeogenic precursors are lactate, glycerol (which is a part of the triacylglycerol molecule), alanine and glutamine. B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05C - Irrigating solutions V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CA - Tests for diabetes V - Various > V06 - General nutrients > V06D - Other nutrients > V06DC - Carbohydrates COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents CONFIDENCE standard compound; INTERNAL_ID 226 KEIO_ID G002 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS alpha-D-glucose is an endogenous metabolite. alpha-D-glucose is an endogenous metabolite.
Acetyl-CoA
C23H38N7O17P3S (809.1257688000001)
The main function of coenzyme A is to carry acyl groups (such as the acetyl group) or thioesters. Acetyl-CoA is an important molecule itself. It is the precursor to HMG CoA, which is a vital component in cholesterol and ketone synthesis. (wikipedia). acetyl CoA participates in the biosynthesis of fatty acids and sterols, in the oxidation of fatty acids and in the metabolism of many amino acids. It also acts as a biological acetylating agent. The main function of coenzyme A is to carry acyl groups (such as the acetyl group) or thioesters. Acetyl-CoA is an important molecule itself. It is the precursor to HMG CoA, which is a vital component in cholesterol and ketone synthesis. (wikipedia)
Isocitric acid
Isocitric acid, also known as isocitrate belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups. Isocitric acid is a TCA (tricarboxylic acid) cycle intermediate. It is a structural isomer of citric acid and is formed from citrate with the help of the enzyme aconitase. More specifically, Isocitric acid is synthesized from citric acid via the intermediate cis-aconitic acid by the enzyme aconitase (aconitate hydratase). Isocitrate is acted upon by isocitrate dehydrogenase (IDH) to form alpha-ketoglutarate. This is a two-step process, which involves oxidation of isocitrate to oxalosuccinate (a ketone), followed by the decarboxylation of the carboxyl group beta to the ketone, forming alpha-ketoglutarate. In humans, IDH exists in three isoforms: IDH3 catalyzes the third step of the citric acid cycle while converting NAD+ to NADH in the mitochondria. The isoforms IDH1 and IDH2 catalyze the same reaction outside the context of the citric acid cycle and use NADP+ as a cofactor instead of NAD+. They localize to the cytosol as well as the mitochondrion and peroxisome. Isocitric acid exists in all living species, ranging from bacteria to plants to humans. Isocitric acid is a minor organic acid found in most fruit juices, especially in blackberries, youngberries, and boyberries, and in vegetables, especially in carrots. The determination of D-isocitric acid has become of importance in the analysis of fruit juices for the detection of illegal additives (adulteration). Since the quantities of citric and isocitric acids are correlated in fruit juices, a high ratio of citric to isocitric acid can indicate the addition of citric acid as an alduterant. In authentic orange juice, for example, the ratio of citric acid to D-isocitric acid is usually less than 130. Isocitric acid is mostly used in the food industry (food additive) as a food acidulant. The citrate oxidation to isocitrate is catalyzed by the enzyme aconitase. Human prostatic secretion is remarkably rich in citric acid and low aconitase activity will therefore play a significant role in enabling accumulation of high citrate levels (PubMed ID 8115279) [HMDB]. Isocitric acid is found in many foods, some of which are wild carrot, redcurrant, carrot, and soursop. [Spectral] Isocitrate (exact mass = 192.027) and CDP (exact mass = 403.01818) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Isocitric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=320-77-4 (retrieved 2024-07-01) (CAS RN: 320-77-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Isocitric acid is an endogenous metabolite present in Saliva and Cellular_Cytoplasm that can be used for the research of Alzheimer's Disease, Lewy Body Dementia and Anoxia[1][2][3]. Isocitric acid is an endogenous metabolite present in Saliva and Cellular_Cytoplasm that can be used for the research of Alzheimer's Disease, Lewy Body Dementia and Anoxia[1][2][3].
Glyoxylic acid
Glyoxylic acid or oxoacetic acid is an organic compound that is both an aldehyde and a carboxylic acid. Glyoxylic acid is a liquid with a melting point of -93°C and a boiling point of 111°C. It is an intermediate of the glyoxylate cycle, which enables certain organisms to convert fatty acids into carbohydrates. The conjugate base of glyoxylic acid is known as glyoxylate (PMID: 16396466). In humans, glyoxylate is produced via two pathways: (1) through the oxidation of glycolate in peroxisomes and (2) through the catabolism of hydroxyproline in mitochondria. In the peroxisomes, glyoxylate is converted into glycine by glyoxylate aminotransferase (AGT1) or into oxalate by glycolate oxidase. In the mitochondria, glyoxylate is converted into glycine by mitochondrial glyoxylate aminotransferase AGT2 or into glycolate by glycolate reductase. A small amount of glyoxylate is converted into oxalate by cytoplasmic lactate dehydrogenase. Glyoxylic acid is found to be associated with primary hyperoxaluria I, which is an inborn error of metabolism. Under certain circumstances, glyoxylate can be a nephrotoxin and a metabotoxin. A nephrotoxin is a compound that causes damage to the kidney and kidney tissues. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. High levels of glyoxylate are involved in the development of hyperoxaluria, a key cause of nephrolithiasis (commonly known as kidney stones). Glyoxylate is both a substrate and inductor of sulfate anion transporter-1 (SAT-1), a gene responsible for oxalate transportation, allowing it to increase SAT-1 mRNA expression, and as a result oxalate efflux from the cell. The increased oxalate release allows the buildup of calcium oxalate in the urine, and thus the eventual formation of kidney stones. As an aldehyde, glyoxylate is also highly reactive and will modify proteins to form advanced glycation products (AGEs). Glyoxylic acid, also known as alpha-ketoacetic acid or glyoxylate, is a member of the class of compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH. Glyoxylic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Glyoxylic acid can be found in a number of food items such as european chestnut, cowpea, wheat, and common thyme, which makes glyoxylic acid a potential biomarker for the consumption of these food products. Glyoxylic acid can be found primarily in blood, cerebrospinal fluid (CSF), feces, and urine, as well as throughout all human tissues. Glyoxylic acid exists in all living species, ranging from bacteria to humans. In humans, glyoxylic acid is involved in a couple of metabolic pathways, which include alanine metabolism and glycine and serine metabolism. Glyoxylic acid is also involved in several metabolic disorders, some of which include lactic acidemia, pyruvate carboxylase deficiency, 3-phosphoglycerate dehydrogenase deficiency, and hyperglycinemia, non-ketotic. Moreover, glyoxylic acid is found to be associated with transurethral resection of the prostate and primary hyperoxaluria I. Glyoxylic acid or oxoacetic acid is an organic compound. Together with acetic acid, glycolic acid, and oxalic acid, glyoxylic acid is one of the C2 carboxylic acids. It is a colourless solid that occurs naturally and is useful industrially . KEIO_ID G013
Pyruvic acid
Pyruvic acid, also known as 2-oxopropanoic acid or alpha-ketopropionic acid, belongs to alpha-keto acids and derivatives class of compounds. Those are organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon. Thus, pyruvic acid is considered to be a fatty acid lipid molecule. Pyruvic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Pyruvic acid can be synthesized from propionic acid. Pyruvic acid is also a parent compound for other transformation products, including but not limited to, 4-hydroxy-3-iodophenylpyruvate, 3-acylpyruvic acid, and methyl pyruvate. Pyruvic acid can be found in a number of food items such as kumquat, groundcherry, coconut, and prunus (cherry, plum), which makes pyruvic acid a potential biomarker for the consumption of these food products. Pyruvic acid can be found primarily in most biofluids, including sweat, blood, urine, and feces, as well as throughout most human tissues. Pyruvic acid exists in all living species, ranging from bacteria to humans. In humans, pyruvic acid is involved in several metabolic pathways, some of which include glycogenosis, type IB, glycolysis, urea cycle, and gluconeogenesis. Pyruvic acid is also involved in several metabolic disorders, some of which include non ketotic hyperglycinemia, pyruvate dehydrogenase complex deficiency, fructose-1,6-diphosphatase deficiency, and 4-hydroxybutyric aciduria/succinic semialdehyde dehydrogenase deficiency. Moreover, pyruvic acid is found to be associated with anoxia, schizophrenia, fumarase deficiency, and meningitis. Pyruvic acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Pyruvic acid is a drug which is used for nutritional supplementation, also for treating dietary shortage or imbalanc. Pyruvic acid can be made from glucose through glycolysis, converted back to carbohydrates (such as glucose) via gluconeogenesis, or to fatty acids through a reaction with acetyl-CoA. It can also be used to construct the amino acid alanine and can be converted into ethanol or lactic acid via fermentation . Those taking large doses of supplemental pyruvate—usually greater than 5 grams daily—have reported gastrointestinal symptoms, including abdominal discomfort and bloating, gas and diarrhea. One child receiving pyruvate intravenously for restrictive cardiomyopathy died (DrugBank). Pyruvate serves as a biological fuel by being converted to acetyl coenzyme A, which enters the tricarboxylic acid or Krebs cycle where it is metabolized to produce ATP aerobically. Energy can also be obtained anaerobically from pyruvate via its conversion to lactate. Pyruvate injections or perfusions increase contractile function of hearts when metabolizing glucose or fatty acids. This inotropic effect is striking in hearts stunned by ischemia/reperfusion. The inotropic effect of pyruvate requires intracoronary infusion. Among possible mechanisms for this effect are increased generation of ATP and an increase in ATP phosphorylation potential. Another is activation of pyruvate dehydrogenase, promoting its own oxidation by inhibiting pyruvate dehydrogenase kinase. Pyruvate dehydrogenase is inactivated in ischemia myocardium. Yet another is reduction of cytosolic inorganic phosphate concentration. Pyruvate, as an antioxidant, is known to scavenge such reactive oxygen species as hydrogen peroxide and lipid peroxides. Indirectly, supraphysiological levels of pyruvate may increase cellular reduced glutathione (T3DB). Pyruvic acid or pyruvate is a simple alpha-keto acid. It is a three-carbon molecule containing a carboxylic acid group and a ketone functional group. Pyruvate is the simplest alpha-keto acid and according to official nomenclature by IUPAC, it is called alpha-keto propanoic acid. Like other keto acids, pyruvic acid can tautomerize from its ketone form to its enol form, containing a double bond and an alcohol. Pyruvate is found in all living organisms ranging from bacteria to plants to humans. It is intermediate compound in the metabolism of carbohydrates, proteins, and fats. Pyruvate is a key intermediate in several metabolic pathways throughout the cell. In particular, pyruvic acid can be made from glucose through glycolysis, converted back to carbohydrates (such as glucose) via gluconeogenesis, or to fatty acids through a reaction with acetyl-CoA. Pyruvic acid supplies energy to cells through the citric acid cycle (TCA or Krebs cycle) when oxygen is present (aerobic respiration), and alternatively ferments to produce lactate when oxygen is lacking (lactic acid). In glycolysis, phosphoenolpyruvate (PEP) is converted to pyruvate by pyruvate kinase. This reaction is strongly exergonic and irreversible. In gluconeogenesis, it takes two enzymes, pyruvate carboxylase and PEP carboxykinase, to catalyze the reverse transformation of pyruvate to PEP. Pyruvic acid is also a metabolite of Corynebacterium (PMID: 27872963). Pyruvic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=127-17-3 (retrieved 2024-07-01) (CAS RN: 127-17-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Pyruvic acid is an intermediate metabolite in the metabolism of carbohydrates, proteins, and fats. Pyruvic acid is an intermediate metabolite in the metabolism of carbohydrates, proteins, and fats.
Urea
Urea is a highly soluble organic compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids. Urea is formed in a cyclic pathway known simply as the urea cycle. In this cycle, amino groups donated by ammonia and L-aspartate are converted to urea. Urea is essentially a waste product; it has no physiological function. It is dissolved in blood (in humans in a concentration of 2.5 - 7.5 mmol/liter) and excreted by the kidney in the urine. In addition, a small amount of urea is excreted (along with sodium chloride and water) in human sweat. Urea is found to be associated with primary hypomagnesemia, which is an inborn error of metabolism. B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05B - I.v. solutions > B05BC - Solutions producing osmotic diuresis Formulation aid. Cattle feed supplement. Urea is found in many foods, some of which are globe artichoke, hickory nut, hard wheat, and cherry tomato. D - Dermatologicals > D02 - Emollients and protectives > D02A - Emollients and protectives > D02AE - Carbamide products C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic > C49187 - Osmotic Diuretic Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Citrulline
Citrulline, also known as Cit or δ-ureidonorvaline, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. Citrulline has the formula H2NC(O)NH(CH2)3CH(NH2)CO2H. Citrulline exists in all living species, ranging from bacteria to humans. Within humans, citrulline participates in a number of enzymatic reactions. In particular, citrulline can be biosynthesized from carbamoyl phosphate and ornithine which is catalyzed by the enzyme ornithine carbamoyltransferase. In addition, citrulline and L-aspartic acid can be converted into argininosuccinic acid through the action of the enzyme argininosuccinate synthase. In humans, citrulline is involved in the metabolic disorder called argininemia. Citrulline has also been found to be associated with several diseases such as ulcerative colitis, rheumatoid arthritis, and citrullinemia type II. Citrulline has also been linked to several inborn metabolic disorders including argininosuccinic aciduria and fumarase deficiency. Outside of the human body, citrulline is found, on average, in the highest concentration in a few different foods such as wheats, oats, and cucumbers and in a lower concentration in swiss chards, yellow wax beans, and potato. Citrulline has also been detected, but not quantified in several different foods, such as epazotes, lotus, common buckwheats, strawberry guava, and italian sweet red peppers. Citrulline is a potentially toxic compound. Proteins that normally contain citrulline residues include myelin basic protein (MBP), filaggrin, and several histone proteins, whereas other proteins, such as fibrin and vimentin are susceptible to citrullination during cell death and tissue inflammation. Citrulline is also produced as a byproduct of the enzymatic production of nitric oxide from the amino acid arginine, catalyzed by nitric oxide synthase. It is also produced from arginine as a byproduct of the reaction catalyzed by NOS family (NOS; EC1.14.13.39). [Spectral] L-Citrulline (exact mass = 175.09569) and L-Glutamate (exact mass = 147.05316) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Acquisition and generation of the data is financially supported in part by CREST/JST. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials Occurs in the juice of watermelon (Citrullus vulgaris) IPB_RECORD: 257; CONFIDENCE confident structure KEIO_ID C013 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS 2-Amino-5-ureidopentanoic acid is an endogenous metabolite. 2-Amino-5-ureidopentanoic acid is an endogenous metabolite. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway.
Dihydroxyacetone phosphate
An important intermediate in lipid biosynthesis and in glycolysis.; Dihydroxyacetone phosphate (DHAP) is a biochemical compound involved in many reactions, from the Calvin cycle in plants to the ether-lipid biosynthesis process in Leishmania mexicana. Its major biochemical role is in the glycolysis metabolic pathway. DHAP may be referred to as glycerone phosphate in older texts.; Dihydroxyacetone phosphate lies in the glycolysis metabolic pathway, and is one of the two products of breakdown of fructose 1,6-phosphate, along with glyceraldehyde 3-phosphate. It is rapidly and reversibly isomerised to glyceraldehyde 3-phosphate.; In the Calvin cycle, DHAP is one of the products of the sixfold reduction of 1,3-bisphosphoglycerate by NADPH. It is also used in the synthesis of sedoheptulose 1,7-bisphosphate and fructose 1,6-bisphosphate which are both used to reform ribulose 5-phosphate, the key carbohydrate of the Calvin cycle. Dihydroxyacetone phosphate is found in many foods, some of which are sesame, mexican groundcherry, parsley, and common wheat. [Spectral] Glycerone phosphate (exact mass = 169.99802) and beta-D-Fructose 1,6-bisphosphate (exact mass = 339.99605) and NADP+ (exact mass = 743.07545) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. Dihydroxyacetone phosphate is an important intermediate in lipid biosynthesis and in glycolysis. Dihydroxyacetone phosphate is found to be associated with transaldolase deficiency, which is an inborn error of metabolism. Dihydroxyacetone phosphate has been identified in the human placenta (PMID: 32033212). KEIO_ID D014
Glycerol
Glycerol or glycerin is a colourless, odourless, viscous liquid that is sweet-tasting and mostly non-toxic. It is widely used in the food industry as a sweetener and humectant and in pharmaceutical formulations. Glycerol is an important component of triglycerides (i.e. fats and oils) and of phospholipids. Glycerol is a three-carbon substance that forms the backbone of fatty acids in fats. When the body uses stored fat as a source of energy, glycerol and fatty acids are released into the bloodstream. The glycerol component can be converted into glucose by the liver and provides energy for cellular metabolism. Normally, glycerol shows very little acute toxicity and very high oral doses or acute exposures can be tolerated. On the other hand, chronically high levels of glycerol in the blood are associated with glycerol kinase deficiency (GKD). GKD causes the condition known as hyperglycerolemia, an accumulation of glycerol in the blood and urine. There are three clinically distinct forms of GKD: infantile, juvenile, and adult. The infantile form is the most severe and is associated with vomiting, lethargy, severe developmental delay, and adrenal insufficiency. The mechanisms of glycerol toxicity in infants are not known, but it appears to shift metabolism towards chronic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated GKD. Many affected children with organic acidemias experience intellectual disability or delayed development. Patients with the adult form of GKD generally have no symptoms and are often detected fortuitously. Glycerol. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=56-81-5 (retrieved 2024-07-01) (CAS RN: 56-81-5). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Palmitoylcarnitine
C23H45NO4 (399.33484100000004)
D018977 - Micronutrients > D014815 - Vitamins CONFIDENCE standard compound; INTERNAL_ID 250
β-D-Fructose 6-phosphate
Fructose 6-phosphate (F6P) belongs to the class of organic compounds known as hexose phosphates. These are carbohydrate derivatives containing a hexose substituted by one or more phosphate groups. F6P is a derivative of fructose, which has been phosphorylated at the 6-hydroxy group. Fructose 6-phosphate is a fundamental metabolite and exists in all living species, ranging from bacteria to plants to humans. The great majority of glucose is converted to fructose 6-phosphate as part of the glycolytic metabolic pathway (glycolysis). Specifically, F6P is produce is produced by the isomerisation of glucose 6-phosphate via the enzyme phosphoglucose isomerase. F6P is in turn further phosphorylated to fructose-1,6-bisphosphate by the enzyme phosphofructokinase-1. Glycolysis is the metabolic pathway that converts glucose into pyruvic acid. The free energy released in this process is used to form ATP and reduced nicotinamide adenine dinucleotide (NADH). In addition to its key involvement in glycolysis, fructose 6-phosphate can also be biosynthesized from glucosamine 6-phosphate via the enzyme glucosamine-6-phosphate isomerase 1. In addition, fructose 6-phosphate and L-glutamine can be converted into glucosamine 6-phosphate and L-glutamic acid through the action of the enzyme glutamine--fructose-6-phosphate aminotransferase. An important intermediate in the Carbohydrates pathway. The interconversion of glucose-6-phosphate and fructose-6-phosphate, the second step of the Embden-Meyerhof glycolytic pathway, is catalyzed by the enzyme phosphoglucose isomerase (PGI). In gluconeogenesis, fructose-6-phosphate is the immediate precursor of glucose-6-phosphate (wikipedia) [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID F001
D-Fructose 2,6-bisphosphate
D-Fructose 2,6-bisphosphate (CAS: 77164-51-3), also known as phosphofructokinase activator, belongs to the class of organic compounds known as pentose phosphates. These are carbohydrate derivatives containing a pentose substituted by one or more phosphate groups. D-Fructose 2,6-bisphosphate is a regulatory molecule controlling the activity of the enzyme phosphofructokinase-1 or PFK1 (in mammals). PFK1, in turn, is the key regulatory enzyme in the central metabolic pathway glycolysis. D-Fructose 2,6-bisphosphate has the effect of increasing the activity of PFK1, thus increasing the rate at which the principle food molecule glucose is broken down. At the same time, this regulatory molecule also inhibits the opposing enzyme (FBPase1) in the reverse pathway (gluconeogenesis) so that the synthesis of glucose is not taking place in the same cell where glucose is being broken down (which would be wasteful). D-Fructose 2,6-bisphosphate is a regulatory molecule controlling the activity of the enzyme Phosphofructokinase-1 or PFK1 (in mammals). PFK1, in turn, is the key regulatory enzyme in the central metabolic pathway Glycolysis. D-Fructose 2,6-bisphosphate has the effect of increasing the activity of PFK1, thus increasing the rate at which the principle food molecule glucose is broken down. At the same time, this regulatory molecule also inhibits the opposing enzyme (FBPase1) in the reverse pathway (gluconeogenesis) so that the synthesis of glucose is not taking place in the same cell where glucose is being broken down (which would be wasteful) . [HMDB] KEIO_ID F010
2-Phospho-D-glyceric acid
2-Phosphoglyceric acid (2PG), or 2-phosphoglycerate, is a glyceric acid which serves as the substrate in the ninth step of glycolysis. It is catalyzed by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate.; 2-Phosphoglyceric acid (2PGA) is a glyceric acid which serves as the substrate in the ninth step of glycolysis. It is catalyzed by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate. Enolase catalyzes the beta-elimination reaction in a stepwise manner wherein OH- is eliminated from C3 of a discrete carbanion (enolate) intermediate. This intermediate is created by removal of the proton from C2 of 2PGA by a base in the active site. (PMID: 8994873, Wikipedia). 2-Phosphoglycerate is found in rice. 2-Phospho-D-glycerate or 2PG is an intermediate in gluconeogenesis. It is a glyceric acid which serves as the substrate in the ninth step of glycolysis. 2PG is converted by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate. More specifically, 2PG can be generated from Glycerate-3-phosphate via phosphoglycerate mutase or from phosphoenolpyrvate via alpha enolase. KEIO_ID P029
6-Phosphogluconic acid
6-phosphogluconic acid, also known as 6-phospho-D-gluconate or D-gluconic acid 6-(dihydrogen phosphate), is a member of the class of compounds known as monosaccharide phosphates. Monosaccharide phosphates are monosaccharides comprising a phosphated group linked to the carbohydrate unit. 6-phosphogluconic acid is soluble (in water) and a moderately acidic compound (based on its pKa). 6-phosphogluconic acid can be found in a number of food items such as purple mangosteen, nopal, chicory leaves, and common sage, which makes 6-phosphogluconic acid a potential biomarker for the consumption of these food products. 6-phosphogluconic acid can be found primarily in blood, cellular cytoplasm, and saliva, as well as throughout most human tissues. 6-phosphogluconic acid exists in all living species, ranging from bacteria to humans. In humans, 6-phosphogluconic acid is involved in the pentose phosphate pathway. 6-phosphogluconic acid is also involved in few metabolic disorders, which include glucose-6-phosphate dehydrogenase deficiency, ribose-5-phosphate isomerase deficiency, transaldolase deficiency, and warburg effect. 6-phosphogluconic acid is formed by 6-phosphogluconolactonase, and acted upon by phosphogluconate dehydrogenase to produce ribulose 5-phosphate. It may also be acted upon by 6-phosphogluconate dehydratase to produce 2-keto-3-deoxy-6-phosphogluconate . 6-Phosphogluconic acid, also known as 6-phospho-D-gluconate or gluconic acid-6-phosphate, belongs to the class of organic compounds known as monosaccharide phosphates. These are monosaccharides comprising a phosphated group linked to the carbohydrate unit. 6-Phosphogluconic acid exists in all living species, ranging from bacteria to humans. Within humans, 6-phosphogluconic acid participates in a number of enzymatic reactions. In particular, 6-phosphogluconic acid can be biosynthesized from gluconolactone; which is mediated by the enzyme 6-phosphogluconolactonase. In addition, 6-phosphogluconic acid can be converted into D-ribulose 5-phosphate through the action of the enzyme 6-phosphogluconate dehydrogenase, decarboxylating. In humans, 6-phosphogluconic acid is involved in the metabolic disorder called the transaldolase deficiency pathway. Outside of the human body, 6-Phosphogluconic acid has been detected, but not quantified in several different foods, such as cascade huckleberries, common chokecherries, half-highbush blueberries, american cranberries, and okra. [Spectral] 6-Phospho-D-gluconate (exact mass = 276.02463) and Phosphoenolpyruvate (exact mass = 167.98237) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. KEIO_ID P031
Glyceraldehyde 3-phosphate
Glyceraldehyde 3-phosphate (G3P) (CAS: 591-59-3), also known as triose phosphate, belongs to the class of organic compounds known as glyceraldehyde-3-phosphates. Glyceraldehyde-3-phosphates are compounds containing a glyceraldehyde substituted at position O3 by a phosphate group. Glyceraldehyde 3-phosphate is an extremely weak basic (essentially neutral) compound (based on its pKa). Glyceraldehyde 3-phosphate has been detected, but not quantified in, several different foods, such as sea-buckthorn berries, lingonberries, prunus (cherry, plum), quinoa, and sparkleberries. This could make glyceraldehyde 3-phosphate a potential biomarker for the consumption of these foods. Glyceraldehyde 3-phosphate is an aldotriose, an important metabolic intermediate in both glycolysis and gluconeogenesis, and in tryptophan biosynthesis. G3P is formed from fructose 1,6-bisphosphate, dihydroxyacetone phosphate (DHAP), and 1,3-bisphosphoglycerate (1,3BPG). This is the process by which glycerol (as DHAP) enters the glycolytic and gluconeogenesis pathways. Glyceraldehyde 3-phosphate (G3P) or triose phosphate is an aldotriose, an important metabolic intermediate in both glycolysis and gluconeogenesis, and in tryptophan biosynthesis. G3P is formed from Fructose-1,6-bisphosphate, Dihydroxyacetone phosphate (DHAP),and 1,3-bisphosphoglycerate, (1,3BPG), and this is how glycerol (as DHAP) enters the glycolytic and gluconeogenesis pathways. D-Glyceraldehyde 3-phosphate is found in many foods, some of which are quince, chinese cabbage, carob, and peach. Acquisition and generation of the data is financially supported in part by CREST/JST.
Acetoacetate
Acetoacetic acid (AcAc) is a weak organic acid that can be produced in the human liver under certain conditions of poor metabolism leading to excessive fatty acid breakdown (diabetes mellitus leading to diabetic ketoacidosis). It is then partially converted into acetone by decarboxylation and excreted either in urine or through respiration. Persistent mild hyperketonemia is a common finding in newborns. Ketone bodies serve as an indispensable source of energy for extrahepatic tissues, especially the brain and lung of developing rats. Another important function of ketone bodies is to provide acetoacetyl-CoA and acetyl-CoA for synthesis of cholesterol, fatty acids, and complex lipids. During the early postnatal period, acetoacetate and beta-hydroxybutyrate are preferred over glucose as substrates for synthesis of phospholipids and sphingolipids in accord with requirements for brain growth and myelination. Thus, during the first two weeks of postnatal development, when the accumulation of cholesterol and phospholipids accelerates, the proportion of ketone bodies incorporated into these lipids increases. On the other hand, an increased proportion of ketone bodies are utilized for cerebroside synthesis during the period of active myelination. In the lung, AcAc serves better than glucose as a precursor for the synthesis of lung phospholipids. The synthesized lipids, particularly dipalmityl phosphatidylcholine, are incorporated into surfactant, and thus have a potential role in supplying adequate surfactant lipids to maintain lung function during the early days of life (PMID: 3884391). The acid is also present in the metabolism of those undergoing starvation or prolonged physical exertion as part of gluconeogenesis. When ketone bodies are measured by way of urine concentration, acetoacetic acid, along with beta-hydroxybutyric acid or acetone, is what is detected.
Palmityl-CoA
Palmityl-CoA is a fatty acid coenzyme derivative which plays a key role in fatty acid oxidation and biosynthesis. A fatty acid coenzyme derivative which plays a key role in fatty acid oxidation and biosynthesis. [HMDB] COVID info from WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Acetone
Acetone, or propanone, is an organic compound with the formula (CH3)2CO. It is the simplest and smallest ketone. It is a colourless, highly volatile and flammable liquid with a characteristic pungent odour. Acetone is miscible with water and serves as an important organic solvent in its own right, in industry, home, and laboratory. Acetone is produced and disposed of in the human body through normal metabolic processes. It is normally present in blood and urine. People with diabetic ketoacidosis produce it in larger amounts. Acetone is not regarded as a waste product of metabolism. However, its physiological role in biochemical machinery is not clear. A model for the role of acetone metabolism is presented that orders the events occurring in acetonemia in sequence: in diabetic ketosis or starvation, ketone body production (b-hydroxy-butyrate, acetoacetate) provides fuel for vital organs (heart, brain, among others) raising the chance of survival of the metabolic catastrophe. However, when ketone body production exceeds the degrading capacity, the accumulating acetoacetic acid presents a new challenge to the pH regulatory system. Acetone production and its further degradation to C3 fragments fulfill two purposes: the maintenance of pH buffering capacity and provision of fuel for peripheral tissues. Since ketosis develops under serious metabolic circumstances, all the mechanisms that balance or moderate the effects of ketosis enhance the chance for survival. From this point of view, the theory that transportable C3 fragments can serve as additional nutrients is a novel view of acetone metabolism which introduces a new approach to the study of acetone degradation, especially in understanding its physiological function and the interrelationship between liver and peripheral tissues. (PMID 10580530). Acetone is typically derived from acetoacetate through the action of microbial acetoacetate decarboxylases found in gut microflora. In chemistry, acetone is the simplest representative of the ketones. Acetone is a colorless, mobile, flammable liquid readily soluble in water, ethanol, ether, etc., and itself serves as an important solvent. It is an irritant and inhalation may lead to hepatotoxic effects (causing liver damage). Acetone can be found in Clostridium (PMID:685531). Solvent used in food processing as a colour diluent, flavour ingredient, etc. D012997 - Solvents
ammonia
An azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms. Ammonia, also known as nh3 or ammonia solution, is a member of the class of compounds known as homogeneous other non-metal compounds. Homogeneous other non-metal compounds are inorganic non-metallic compounds in which the largest atom belongs to the class of other nonmetals. Ammonia can be found in a number of food items such as rose hip, yardlong bean, cereals and cereal products, and ceylon cinnamon, which makes ammonia a potential biomarker for the consumption of these food products. Ammonia can be found primarily in blood, cellular cytoplasm, cerebrospinal fluid (CSF), and urine, as well as throughout all human tissues. Ammonia exists in all eukaryotes, ranging from yeast to humans. In humans, ammonia is involved in several metabolic pathways, some of which include glucose-alanine cycle, phenylalanine and tyrosine metabolism, homocysteine degradation, and d-arginine and d-ornithine metabolism. Ammonia is also involved in several metabolic disorders, some of which include ureidopropionase deficiency, hyperornithinemia-hyperammonemia-homocitrullinuria [hhh-syndrome], non ketotic hyperglycinemia, and beta-mercaptolactate-cysteine disulfiduria. Moreover, ammonia is found to be associated with 3-Hydroxy-3-methylglutaryl-CoA lyase deficiency, 3-Methyl-crotonyl-glycinuria, citrullinemia type I, and short bowel syndrome. Ammonia is a non-carcinogenic (not listed by IARC) potentially toxic compound. Ammonia or azane is a compound of nitrogen and hydrogen with the formula NH3. The simplest pnictogen hydride, ammonia is a colourless gas with a characteristic pungent smell. It is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products . Acute Exposure: EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration. (z)-n-coumaroyl-5-hydroxyanthranilic acid is a member of the class of compounds known as avenanthramides. Avenanthramides are a group of phenolic alkaloids consisting of conjugate of three phenylpropanoids (ferulic, caffeic, or p-coumaric acid) and anthranilic acid (z)-n-coumaroyl-5-hydroxyanthranilic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). (z)-n-coumaroyl-5-hydroxyanthranilic acid can be found in cereals and cereal products and oat, which makes (z)-n-coumaroyl-5-hydroxyanthranilic acid a potential biomarker for the consumption of these food products.
Succinyl-CoA
Succinyl-CoA is an important intermediate in the citric acid cycle, where it is synthesized from α-Ketoglutarate by α-ketoglutarate dehydrogenase (EC 1.2.4.2) through decarboxylation, and is converted into succinate through the hydrolytic release of coenzyme A by succinyl-CoA synthetase (EC 6.2.1.5). Succinyl-CoA may be an end product of peroxisomal beta-oxidation of dicarboxylic fatty acids; the identification of an apparently specific succinyl-CoA thioesterase (ACOT4, EC 3.1.2.3, hydrolyzes succinyl-CoA) in peroxisomes strongly suggests that succinyl-CoA is formed in peroxisomes. Acyl-CoA thioesterases (ACOTs) are a family of enzymes that catalyze the hydrolysis of the CoA esters of various lipids to the free acids and coenzyme A, thereby regulating levels of these compounds. (PMID: 16141203) [HMDB]. Succinyl-CoA is found in many foods, some of which are fruits, sea-buckthornberry, pomegranate, and sweet orange. Succinyl-CoA is an important intermediate in the citric acid cycle, where it is synthesized from α-Ketoglutarate by α-ketoglutarate dehydrogenase (EC 1.2.4.2) through decarboxylation, and is converted into succinate through the hydrolytic release of coenzyme A by succinyl-CoA synthetase (EC 6.2.1.5). Succinyl-CoA may be an end product of peroxisomal beta-oxidation of dicarboxylic fatty acids; the identification of an apparently specific succinyl-CoA thioesterase (ACOT4, EC 3.1.2.3, hydrolyzes succinyl-CoA) in peroxisomes strongly suggests that succinyl-CoA is formed in peroxisomes. Acyl-CoA thioesterases (ACOTs) are a family of enzymes that catalyze the hydrolysis of the CoA esters of various lipids to the free acids and coenzyme A, thereby regulating levels of these compounds. (PMID: 16141203).
Glycogen
Glycogen is a highly-branched polymer of about 30,000 glucose residues. The simplest structure of glycogen is made up of four units of glucose with an approximate molecular weight of 666 daltons. However, large molecules of glycogen can reach molecular weights in the order of 5 million Da. Most of the glucose units are linked together by alpha-1,4 glycosidic bonds, and approximately 1 in 12 glucose residues also form a 1,6 glycosidic bond with a second glucose, resulting in the creation of a branch. Glycogen only has one reducing end and a large number of non-reducing ends with a free hydroxyl group at carbon 4. The glycogen granules contain both glycogen and the enzymes of glycogen synthesis (glycogenesis) and degradation (glycogenolysis). The enzymes are nested between the outer branches of the glycogen molecules and act on the non-reducing ends. Therefore, the many non-reducing end-branches of glycogen facilitate its rapid synthesis and breakdown. In hypoglycemia caused by excessive insulin, liver glycogen levels are high, but the high insulin level prevents the necessary glycogenolysis to take place to maintain normal blood sugar levels. Glucagon is a common treatment for this type of hypoglycemia. Glycogen is a polysaccharide that is the principal storage form of glucose (Glc) in animal cells. Glycogen is found in the form of granules in the cytosol in many cell types. Hepatocytes (liver cells) have the highest concentration of it - up to 8\\% of the fresh weight in well fed state, or 100 to 120 g in an adult - giving liver a distinctive, starchy taste. In the muscles, glycogen is found in a much lower concentration (1\\% of the muscle mass), but the total amount exceeds that in liver. Small amounts of glycogen are found in the kidneys, and even smaller amounts in certain glial cells in the brain and white blood cells. Glycogen is a highly-branched polymer of about 30,000 glucose residues and has a molecular weight between 106 and 107 daltons (4.8 million approx.). Most of Glc units are linked by alpha-1,4 glycosidic bonds, approximately 1 in 12 Glc residues also makes -1,6 glycosidic bond with a second Glc which results in the creation of a branch. Glycogen only has one reducing end and a large number of non-reducing ends with a free hydroxyl group at carbon 4. The glycogen granules contain both glycogen and the enzymes of glycogen synthesis (glycogenesis) and degradation (glycogenolysis). The enzymes are nested between the outer branches of the glycogen molecules and act on the non-reducing ends. Therefore, the many non-reducing end-branches of glycogen facilitate its rapid synthesis and breakdown.
Glyceric acid 1,3-biphosphate
Glyceric acid 1,3-biphosphate (CAS: 1981-49-3), also known as 1,3-bisphosphoglycerate (1,3BPG) or PGAP, is a 3-carbon organic molecule present in most, if not all living creatures. It primarily exists as a metabolic intermediate in glycolysis during respiration. 1,3BPG has been recognized as regulatory signal implicated in the control of metabolism, oxygen affinity of red cells, and other cellular functions. 1,3BPG concentration in erythrocytes changes in a number of pathological conditions, such as inherited phosphoglycerate kinase deficiency in erythrocytes (involved in the synthesis and breakdown of 1,3BPG) (PMID: 3555887). Glyceric acid 1,3-biphosphate is phosphorylated at the number 1 and 3 carbons. The result of this phosphorylation gives 1,3BPG important biological properties such as the ability to phosphorylate ADP to form the energy storage molecule ATP (Wikipedia). 3-phospho-d-glyceroyl phosphate, also known as 1,3-bisphospho-D-glycerate or D-glycerate 1,3-diphosphate, is a member of the class of compounds known as acyl monophosphates. Acyl monophosphates are organic compounds containing a monophosphate linked to an acyl group. They have the general structure R-CO-P(O)(O)OH, R=H or organyl. 3-phospho-d-glyceroyl phosphate is slightly soluble (in water) and a moderately acidic compound (based on its pKa). 3-phospho-d-glyceroyl phosphate can be found in a number of food items such as tamarind, narrowleaf cattail, mustard spinach, and cereals and cereal products, which makes 3-phospho-d-glyceroyl phosphate a potential biomarker for the consumption of these food products. 3-phospho-d-glyceroyl phosphate exists in E.coli (prokaryote) and yeast (eukaryote).
Acetoacetyl-CoA
Acetoacetyl-CoA is an intermediate in the metabolism of Butanoate. It is a substrate for Succinyl-CoA:3-ketoacid-coenzyme A transferase 1 (mitochondrial), Hydroxymethylglutaryl-CoA synthase (mitochondrial), Short chain 3-hydroxyacyl-CoA dehydrogenase (mitochondrial), Trifunctional enzyme beta subunit (mitochondrial), Hydroxymethylglutaryl-CoA synthase (cytoplasmic), Peroxisomal bifunctional enzyme, Acetyl-CoA acetyltransferase (cytosolic), Acetyl-CoA acetyltransferase (mitochondrial), 3-hydroxyacyl-CoA dehydrogenase type II, Succinyl-CoA:3-ketoacid-coenzyme A transferase 2 (mitochondrial), 3-ketoacyl-CoA thiolase (mitochondrial), 3-ketoacyl-CoA thiolase (peroxisomal) and Trifunctional enzyme alpha subunit (mitochondrial). [HMDB]. Acetoacetyl-CoA is found in many foods, some of which are bog bilberry, lemon balm, pineapple, and pak choy. Acetoacetyl-CoA belongs to the class of organic compounds known as aminopiperidines. Aminopiperidines are compounds containing a piperidine that carries an amino group. Acetoacetyl-CoA is a strong basic compound (based on its pKa). In humans, acetoacetyl-CoA is involved in the metabolic disorder called the short-chain 3-hydroxyacyl-CoA dehydrogenase deficiency (HADH) pathway. Acetoacetyl-CoA is an intermediate in the metabolism of butanoate. It is a substrate for succinyl-CoA:3-ketoacid-coenzyme A transferase, hydroxymethylglutaryl-CoA synthase, short-chain 3-hydroxyacyl-CoA dehydrogenase, peroxisomal bifunctional enzyme, acetyl-CoA acetyltransferase, and 3-ketoacyl-CoA thiolase.
3-Hydroxy-3-methylglutaryl-CoA
3-Hydroxy-3-methylglutaryl-CoA (HMG-CoA) (CAS: 1553-55-5) is formed when acetyl-CoA condenses with acetoacetyl-CoA in a reaction that is catalyzed by the enzyme HMG-CoA synthase in the mevalonate pathway or mevalonate-dependent (MAD) route, an important cellular metabolic pathway present in virtually all organisms. HMG-CoA reductase (EC 1.1.1.34) inhibitors, more commonly known as statins, are cholesterol-lowering drugs that have been widely used for many years to reduce the incidence of adverse cardiovascular events. HMG-CoA reductase catalyzes the rate-limiting step in the mevalonate pathway and these agents lower cholesterol by inhibiting its synthesis in the liver and in peripheral tissues. Androgen also stimulates lipogenesis in human prostate cancer cells directly by increasing transcription of the fatty acid synthase and HMG-CoA-reductase genes (PMID: 14689582). (s)-3-hydroxy-3-methylglutaryl-coa, also known as hmg-coa or hydroxymethylglutaroyl coenzyme a, is a member of the class of compounds known as (s)-3-hydroxy-3-alkylglutaryl coas (s)-3-hydroxy-3-alkylglutaryl coas are 3-hydroxy-3-alkylglutaryl-CoAs where the 3-hydroxy-3-alkylglutaryl component has (S)-configuration. Thus, (s)-3-hydroxy-3-methylglutaryl-coa is considered to be a fatty ester lipid molecule (s)-3-hydroxy-3-methylglutaryl-coa is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). (s)-3-hydroxy-3-methylglutaryl-coa can be found in a number of food items such as watercress, burdock, spirulina, and chicory, which makes (s)-3-hydroxy-3-methylglutaryl-coa a potential biomarker for the consumption of these food products (s)-3-hydroxy-3-methylglutaryl-coa may be a unique S.cerevisiae (yeast) metabolite.
(S)-3-Hydroxybutyryl-CoA
C25H42N7O18P3S (853.1519822000001)
(S)-3-Hydroxybutyryl-CoA is classified as a member of the (S)-3-hydroxyacyl CoAs. (S)-3-hydroxyacyl CoAs are organic compounds containing a (S)-3-hydroxyl acylated coenzyme A derivative. (S)-3-Hydroxybutyryl-CoA is considered to be slightly soluble (in water) and acidic
6-Phosphonoglucono-D-lactone
6-phosphonoglucono-d-lactone, also known as D-glucono-1,5-lactone 6-phosphate or 6-pgdl, is a member of the class of compounds known as hexose phosphates. Hexose phosphates are carbohydrate derivatives containing a hexose substituted by one or more phosphate groups. 6-phosphonoglucono-d-lactone is soluble (in water) and a moderately acidic compound (based on its pKa). 6-phosphonoglucono-d-lactone can be found in a number of food items such as chicory leaves, pepper (c. chinense), opium poppy, and green bell pepper, which makes 6-phosphonoglucono-d-lactone a potential biomarker for the consumption of these food products. 6-phosphonoglucono-d-lactone can be found primarily in cellular cytoplasm. 6-phosphonoglucono-d-lactone exists in all living species, ranging from bacteria to humans. In humans, 6-phosphonoglucono-d-lactone is involved in warburg effect, which is a metabolic disorder. 6-phosphoglucono-delta-lactone (d-6PGL) is the immediate product of the Glucose-6-phosphate dehydrogenase (G-6-PD), the first enzyme of the hexose monophosphate pathway. (PMID 3711719). The pentose-phosphate pathway provides reductive power and nucleotide precursors to the cell through oxidative and nonoxidative branches. 6-Phosphogluconolactonase is the second enzyme of the oxidative branch and catalyzes the hydrolysis of 6-phosphogluconolactones, the products of glucose 6-phosphate oxidation by glucose-6-phosphate dehydrogenase. By efficiently catalyzing the hydrolysis of d-6PGL, 6-phosphogluconolactonase prevents the reaction between d-6PGL and intracellular nucleophiles; such a reaction would interrupt the functioning of the pentose-phosphate pathway. (PMID 11457850).
Lauroyl-CoA
Lauroyl-CoA is a substrate for Protein FAM34A. [HMDB]. Lauroyl-CoA is found in many foods, some of which are apricot, hazelnut, other soy product, and thistle. Lauroyl-CoA is a substrate for Protein FAM34A.
Tetradecanoyl-CoA
Tetradecanoyl-CoA (or myristoyl-CoA) is an intermediate in fatty acid biosynthesis, fatty acid elongation and the beta oxidation of fatty acids. It is also used in the myristoylation of proteins. The first pass through the beta-oxidation process starts with the saturated fatty acid palmitoyl-CoA and produces myristoyl-CoA. A total of four enzymatic steps are required, starting with VLCAD CoA dehydrogenase (Very Long Chain) activity, followed by three enzymatic steps catalyzed by enoyl-CoA hydratase, 3-hydroxyacyl-CoA dehydrogenase, and ketoacyl-CoA thiolase, all present in the mitochondria. Myristoylation of proteins is also catalyzed by the presence of myristoyl-CoA along with Myristoyl-CoA:protein N-myristoyltransferase (NMT). Myristoylation is an irreversible, co-translational (during translation) protein modification found in animals, plants, fungi and viruses. In this protein modification a myristoyl group (derived from myristioyl CoA) is covalently attached via an amide bond to the alpha-amino group of an N-terminal amino acid of a nascent polypeptide. It is more common on glycine residues but also occurs on other amino acids. Myristoylation also occurs post-translationally, for example when previously internal glycine residues become exposed by caspase cleavage during apoptosis. Myristoylation plays a vital role in membrane targeting and signal transduction in plant responses to environmental stress. Compared to other species that possess a single functional myristoyl-CoA: protein N-myristoyltransferase (NMT) gene copy, human, mouse and cow possess 2 NMT genes, and more than 2 protein isoforms. Myristoyl-coa, also known as S-tetradecanoyl-coenzyme a or myristoyl-coenzyme a, is a member of the class of compounds known as long-chain fatty acyl coas. Long-chain fatty acyl coas are acyl CoAs where the group acylated to the coenzyme A moiety is a long aliphatic chain of 13 to 21 carbon atoms. Myristoyl-coa is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). Myristoyl-coa can be found in a number of food items such as sea-buckthornberry, anise, chicory, and cassava, which makes myristoyl-coa a potential biomarker for the consumption of these food products. Myristoyl-coa can be found primarily in human fibroblasts tissue. Myristoyl-coa exists in all eukaryotes, ranging from yeast to humans. In humans, myristoyl-coa is involved in few metabolic pathways, which include adrenoleukodystrophy, x-linked, beta oxidation of very long chain fatty acids, and fatty acid metabolism. Myristoyl-coa is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis TG(18:0/14:0/22:0), de novo triacylglycerol biosynthesis tg(i-21:0/12:0/14:0), de novo triacylglycerol biosynthesis TG(18:1(9Z)/14:0/22:2(13Z,16Z)), and de novo triacylglycerol biosynthesis TG(14:0/16:1(9Z)/22:5(4Z,7Z,10Z,13Z,16Z)).
Trans-2,3-dehydrododecanoyl-CoA
C33H56N7O17P3S (947.2666116000001)
Trans-2,3-dehydrododecanoyl-CoA is a coenzyme, notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle. It is adapted from cysteamine, pantothenate, and adenosine triphosphate. This compound is formed by Trans-2,3-dehydrododecanoic acid reacting with thiol group of CoA molecules. [HMDB] Trans-2,3-dehydrododecanoyl-CoA is a coenzyme, notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle. It is adapted from cysteamine, pantothenate, and adenosine triphosphate. This compound is formed by Trans-2,3-dehydrododecanoic acid reacting with thiol group of CoA molecules.
(S)-3-Hydroxyhexadecanoyl-CoA
(S)-3-Hydroxyhexadecanoyl-CoA is a beta-oxidation intermediate derivative of palmitoyl-CoA and the substrate of the enzyme peroxisomal acyl-CoA thioesterase 2 (PTE-2, EC 3.1.2.2), which is localized in the peroxisome. The peroxisomal beta-oxidation system contains two sets of enzymes, one of which is involved in the oxidation of branched chain fatty acids and intermediates in the hepatic bile acid biosynthetic pathway and consists of one or two branched-chain acyl-CoA oxidase(s), a D-specific bifunctional protein and the sterol carrier-like protein x (SCPx). Peroxisomes are cellular organelles present in all eukaryotic cells. They play an indispensable role in the metabolism of a variety of lipids including very long-chain fatty acids, dicarboxylic fatty acids, bile acids, prostaglandins, leukotrienes, thromboxanes, pristanic acid, and xenobiotic fatty acids. (S)-3-Hydroxyhexadecanoyl-CoA may accumulate intracellularly in certain long-chain fatty acid/j-oxidation deficiencies. Succinate-driven synthesis of ATP from ADP and phosphate is progressively inhibited by increasing concentrations of (S)-3-Hydroxyhexadecanoyl-CoA. (PMID: 11673457, 8739955, 7662716) [HMDB] (S)-3-Hydroxyhexadecanoyl-CoA is a beta-oxidation intermediate derivative of palmitoyl-CoA and the substrate of the enzyme peroxisomal acyl-CoA thioesterase 2 (PTE-2, EC 3.1.2.2), which is localized in the peroxisome. The peroxisomal beta-oxidation system contains two sets of enzymes, one of which is involved in the oxidation of branched chain fatty acids and intermediates in the hepatic bile acid biosynthetic pathway and consists of one or two branched-chain acyl-CoA oxidase(s), a D-specific bifunctional protein and the sterol carrier-like protein x (SCPx). Peroxisomes are cellular organelles present in all eukaryotic cells. They play an indispensable role in the metabolism of a variety of lipids including very long-chain fatty acids, dicarboxylic fatty acids, bile acids, prostaglandins, leukotrienes, thromboxanes, pristanic acid, and xenobiotic fatty acids. (S)-3-Hydroxyhexadecanoyl-CoA may accumulate intracellularly in certain long-chain fatty acid/j-oxidation deficiencies. Succinate-driven synthesis of ATP from ADP and phosphate is progressively inhibited by increasing concentrations of (S)-3-Hydroxyhexadecanoyl-CoA. (PMID: 11673457, 8739955, 7662716).
3-Oxohexadecanoyl-CoA
C37H64N7O18P3S (1019.3241234000001)
3-Oxohexadecanoyl-CoA has a role in the synthesis and oxidation of fatty acid. It is involved in the pathway, fatty acid elongation in mitochondria. In this pathway Acetyl-CoA is acted upon by the enzyme, acetyl-CoA C-acyltransferase to produce 3-Oxohexadecanoyl-CoA. Since coenzyme A is chemically a thiol, it can react with carboxylic acids to form thioesters, thus functioning as an acyl group carrier. It assists in transferring fatty acids from the cytoplasm to the mitochondria. A molecule of coenzyme A carrying an acetyl group is also referred to as acetyl-CoA. When it is not attached to an acyl group it is usually referred to as CoASH or HSCoA. [HMDB] 3-Oxohexadecanoyl-CoA has a role in the synthesis and oxidation of fatty acid. It is involved in the pathway, fatty acid elongation in mitochondria. In this pathway Acetyl-CoA is acted upon by the enzyme, acetyl-CoA C-acyltransferase to produce 3-Oxohexadecanoyl-CoA. Since coenzyme A is chemically a thiol, it can react with carboxylic acids to form thioesters, thus functioning as an acyl group carrier. It assists in transferring fatty acids from the cytoplasm to the mitochondria. A molecule of coenzyme A carrying an acetyl group is also referred to as acetyl-CoA. When it is not attached to an acyl group it is usually referred to as CoASH or HSCoA.
(S)-3-Hydroxytetradecanoyl-CoA
(S)-3-Hydroxytetradecanoyl-CoA is an intermediate in Fatty acid elongation in mitochondria. (S)-3-Hydroxytetradecanoyl-CoA is the 7th to last step in the synthesis of Hexadecanoic acid and is converted from 3-Oxotetradecanoyl-CoA via the enzyme long-chain 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.211). It is then converted to trans-Tetradec-2-enoyl-CoA via the enzyme enoyl-CoA hydratase (EC 4.2.1.17). [HMDB] (S)-3-Hydroxytetradecanoyl-CoA is an intermediate in Fatty acid elongation in mitochondria. (S)-3-Hydroxytetradecanoyl-CoA is the 7th to last step in the synthesis of Hexadecanoic acid and is converted from 3-Oxotetradecanoyl-CoA via the enzyme long-chain 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.211). It is then converted to trans-Tetradec-2-enoyl-CoA via the enzyme enoyl-CoA hydratase (EC 4.2.1.17).
3-Oxotetradecanoyl-CoA
C35H60N7O18P3S (991.2928250000001)
3-Oxotetradecanoyl-CoA is a product of the peroxisomal beta oxidation of hexadenoic acid by the enzyme acyl-CoA oxidase which results in long-chain 3-oxoacyl-CoA-esters. (PMID: 7548202). Myristoyl-CoA:protein N-myristoyltransferase (E.C. 2.3.1.97) is a eukaryotic enzyme that catalyzes the transfer of myristate (C14:O) from myristoyl-CoA to the amino nitrogen of glycine. This covalent protein modification occurs cotranslationally, is apparently irreversible, and affects proteins with diverse functions. (PMID: 2818568). 3-Oxotetradecanoyl-CoA is a product of the peroxisomal beta oxidation of hexadenoic acid by the enzyme acyl-CoA oxidase which results in long-chain 3-oxoacyl-CoA-esters. (PMID: 7548202)
(S)-3-Hydroxydodecanoyl-CoA
(S)-3-Hydroxydodecanoyl-CoA is a human metabolite involved in the fatty acid elongation in mitochondria pathway. The enzyme long-chain-3-hydroxyacyl-CoA dehydrogenase catalyzes the conversion of 3-Oxododecanoyl-CoA to (S)-3-Hydroxydodecanoyl-CoA. [HMDB] (S)-3-Hydroxydodecanoyl-CoA is a human metabolite involved in the fatty acid elongation in mitochondria pathway. The enzyme long-chain-3-hydroxyacyl-CoA dehydrogenase catalyzes the conversion of 3-Oxododecanoyl-CoA to (S)-3-Hydroxydodecanoyl-CoA.
(S)-Hydroxydecanoyl-CoA
(s)-hydroxydecanoyl-coa, also known as S-(3-hydroxydecanoate) CoA or 3S-hydroxy-decanoyl-CoA is an acyl-CoA or acyl-coenzyme A. More specifically, it is a 3-hydroxydecanoic acid thioester of coenzyme A. (s)-hydroxydecanoyl-coa is an acyl-CoA with 10 fatty acid group as the acyl moiety attached to coenzyme A. Coenzyme A was discovered in 1946 by Fritz Lipmann (Journal of Biological Chemistry (1946) 162 (3): 743–744) and its structure was determined in the early 1950s at the Lister Institute in London. Coenzyme A is a complex, thiol-containing molecule that is naturally synthesized from pantothenate (vitamin B5), which is found in various foods such as meat, vegetables, cereal grains, legumes, eggs, and milk. More specifically, coenzyme A (CoASH or CoA) consists of a beta-mercaptoethylamine group linked to the vitamin pantothenic acid (B5) through an amide linkage and 3-phosphorylated ADP. Coenzyme A is synthesized in a five-step process that requires four molecules of ATP, pantothenate and cysteine. It is believed that there are more than 1100 types of acyl-CoA’s in the human body, which also corresponds to the number of acylcarnitines in the human body. Acyl-CoAs exists in all living species, ranging from bacteria to plants to humans. The general role of acyl-CoA’s is to assist in transferring fatty acids from the cytoplasm to mitochondria. This process facilitates the production of fatty acids in cells, which are essential in cell membrane structure. Acyl-CoAs are also susceptible to beta oxidation, forming, ultimately, acetyl-CoA. Acetyl-CoA can enter the citric acid cycle, eventually forming several equivalents of ATP. In this way, fats are converted to ATP -- or biochemical energy. Acyl-CoAs can be classified into 9 different categories depending on the size of their acyl-group: 1) short-chain acyl-CoAs; 2) medium-chain acyl-CoAs; 3) long-chain acyl-CoAs; and 4) very long-chain acyl-CoAs; 5) hydroxy acyl-CoAs; 6) branched chain acyl-CoAs; 7) unsaturated acyl-CoAs; 8) dicarboxylic acyl-CoAs and 9) miscellaneous acyl-CoAs. Short-chain acyl-CoAs have acyl-groups with two to four carbons (C2-C4), medium-chain acyl-CoAs have acyl-groups with five to eleven carbons (C5-C11), long-chain acyl-CoAs have acyl-groups with twelve to twenty carbons (C12-C20) while very long-chain acyl-CoAs have acyl groups with more than 20 carbons. (s)-hydroxydecanoyl-coa is therefore classified as a medium chain acyl-CoA. The oxidative degradation of fatty acids is a two-step process, catalyzed by acyl-CoA synthetase/synthase. Fatty acids are first converted to their acyl phosphate, the precursor to acyl-CoA. The latter conversion is mediated by acyl-CoA synthase. Three types of acyl-CoA synthases are employed, depending on the chain length of the fatty acid. (s)-hydroxydecanoyl-coa, being a medium chain acyl-CoA is a substrate for medium chain acyl-CoA synthase. The second step of fatty acid degradation is beta oxidation. Beta oxidation occurs in mitochondria and, in the case of very long chain acyl-CoAs, the peroxisome. After its formation in the cytosol, (S)-Hydroxydecanoyl-CoA is transported into the mitochondria, the locus of beta oxidation. Transport of (S)-Hydroxydecanoyl-CoA into the mitochondria requires carnitine palmitoyltransferase 1 (CPT1), which converts (S)-Hydroxydecanoyl-CoA into 3-Hydroxydecanoylcarnitine, which gets transported into the mitochondrial matrix. Once in the matrix, 3-Hydroxydecanoylcarnitine is converted back to (S)-Hydroxydecanoyl-CoA by CPT2, whereupon beta-oxidation can begin. Beta oxidation of (S)-Hydroxydecanoyl-CoA occurs in four steps. First, since (S)-Hydroxydecanoyl-CoA is a medium chain acyl-CoA it is the substrate for a medium chain acyl-CoA dehydrogenase, which catalyzes dehydrogenation of (S)-Hydroxydecanoyl-CoA, creating a double bond between the alpha and beta carbons. FAD is the hydrogen acceptor, yielding FADH2. Second, Enoyl-CoA hydrase catalyzes the addition of water across the newly formed double bo... (S)-Hydroxydecanoyl-CoA has a role in the synthesis and oxidation of fatty acids. It is involved in fatty acid elongation in mitochondria. In this pathway 3-Oxodecanoyl-CoA is acted upon by two enzymes, 3-hydroxyacyl-CoA dehydrogenase and long-chain-3-hydroxyacyl-CoA dehydrogenase to produce (S)-Hydroxydecanoyl-CoA. Since coenzyme A is chemically a thiol, it can react with carboxylic acids to form thioesters, thus functioning as an acyl group carrier. It assists in transferring fatty acids from the cytoplasm to mitochondria. A molecule of coenzyme A carrying an acetyl group is also referred to as acetyl-CoA. When it is not attached to an acyl group it is usually referred to as CoASH or HSCoA. [HMDB]
3-Oxodecanoyl-CoA
C31H52N7O18P3S (935.2302281999999)
3-oxodecanoyl-coa, also known as 3-ketodecanoyl-CoA is an acyl-CoA or acyl-coenzyme A. More specifically, it is a 3-oxodecanoic acid thioester of coenzyme A. 3-oxodecanoyl-coa is an acyl-CoA with 10 fatty acid group as the acyl moiety attached to coenzyme A. Coenzyme A was discovered in 1946 by Fritz Lipmann (Journal of Biological Chemistry (1946) 162 (3): 743–744) and its structure was determined in the early 1950s at the Lister Institute in London. Coenzyme A is a complex, thiol-containing molecule that is naturally synthesized from pantothenate (vitamin B5), which is found in various foods such as meat, vegetables, cereal grains, legumes, eggs, and milk. More specifically, coenzyme A (CoASH or CoA) consists of a beta-mercaptoethylamine group linked to the vitamin pantothenic acid (B5) through an amide linkage and 3-phosphorylated ADP. Coenzyme A is synthesized in a five-step process that requires four molecules of ATP, pantothenate and cysteine. It is believed that there are more than 1100 types of acyl-CoA’s in the human body, which also corresponds to the number of acylcarnitines in the human body. Acyl-CoAs exists in all living species, ranging from bacteria to plants to humans. The general role of acyl-CoA’s is to assist in transferring fatty acids from the cytoplasm to mitochondria. This process facilitates the production of fatty acids in cells, which are essential in cell membrane structure. Acyl-CoAs are also susceptible to beta oxidation, forming, ultimately, acetyl-CoA. Acetyl-CoA can enter the citric acid cycle, eventually forming several equivalents of ATP. In this way, fats are converted to ATP -- or biochemical energy. Acyl-CoAs can be classified into 9 different categories depending on the size of their acyl-group: 1) short-chain acyl-CoAs; 2) medium-chain acyl-CoAs; 3) long-chain acyl-CoAs; and 4) very long-chain acyl-CoAs; 5) hydroxy acyl-CoAs; 6) branched chain acyl-CoAs; 7) unsaturated acyl-CoAs; 8) dicarboxylic acyl-CoAs and 9) miscellaneous acyl-CoAs. Short-chain acyl-CoAs have acyl-groups with two to four carbons (C2-C4), medium-chain acyl-CoAs have acyl-groups with five to eleven carbons (C5-C11), long-chain acyl-CoAs have acyl-groups with twelve to twenty carbons (C12-C20) while very long-chain acyl-CoAs have acyl groups with more than 20 carbons. 3-oxodecanoyl-coa is therefore classified as a medium chain acyl-CoA. The oxidative degradation of fatty acids is a two-step process, catalyzed by acyl-CoA synthetase/synthase. Fatty acids are first converted to their acyl phosphate, the precursor to acyl-CoA. The latter conversion is mediated by acyl-CoA synthase. Three types of acyl-CoA synthases are employed, depending on the chain length of the fatty acid. 3-oxodecanoyl-coa, being a medium chain acyl-CoA is a substrate for medium chain acyl-CoA synthase. The second step of fatty acid degradation is beta oxidation. Beta oxidation occurs in mitochondria and, in the case of very long chain acyl-CoAs, the peroxisome. After its formation in the cytosol, 3-Oxodecanoyl-CoA is transported into the mitochondria, the locus of beta oxidation. Transport of 3-Oxodecanoyl-CoA into the mitochondria requires carnitine palmitoyltransferase 1 (CPT1), which converts 3-Oxodecanoyl-CoA into 3-oxodecanoylcarnitine, which gets transported into the mitochondrial matrix. Once in the matrix, 3-oxodecanoylcarnitine is converted back to 3-Oxodecanoyl-CoA by CPT2, whereupon beta-oxidation can begin. Beta oxidation of 3-Oxodecanoyl-CoA occurs in four steps. First, since 3-Oxodecanoyl-CoA is a medium chain acyl-CoA it is the substrate for a medium chain acyl-CoA dehydrogenase, which catalyzes dehydrogenation of 3-Oxodecanoyl-CoA, creating a double bond between the alpha and beta carbons. FAD is the hydrogen acceptor, yielding FADH2. Second, Enoyl-CoA hydrase catalyzes the addition of water across the newly formed double bond to make an alcohol. Third, 3-hydroxyacyl-CoA dehydrogenase oxidizes the alcohol group to a ketone and NADH is ... 3-Oxodecanoyl-CoA is an intermediate in fatty acid metabolism, the substrate of the enzyme acetyl-Coenzyme A acetyltransferase 1 and 2 [EC:2.3.1.16-2.3.1.9]; 3-Oxodecanoyl-CoA is an intermediate in fatty acid elongation in mitochondria, being the substrate of the enzymes beta-hydroxyacyl-CoA dehydrogenase and 3-hydroxyacyl-CoA dehydrogenase [EC 1.1.1.211-1.1.1.35]. (KEGG) [HMDB]. 3-Oxodecanoyl-CoA is found in many foods, some of which are chinese cabbage, calabash, safflower, and sunburst squash (pattypan squash).
(S)-Hydroxyoctanoyl-CoA
C29H50N7O18P3S (909.2145790000001)
Coenzyme A is notable for its role in the synthesis and oxidation of fatty acids. Since coenzyme A is chemically a thiol, it can react with carboxylic acids to form thioesters, thus functioning as an acyl group carrier. It assists in transferring fatty acids from the cytoplasm to mitochondria. Specifically (S)-Hydroxyoctanoyl-CoA is involved in fatty acid metabolism. It is the product of a reaction between 3-Oxooctanoyl-CoA and two enzymes; 3-hydroxyacyl-CoA Dehydrogenase and long-chain- 3-hydroxyacyl-CoA dehydrogenase. [HMDB] Coenzyme A is notable for its role in the synthesis and oxidation of fatty acids. Since coenzyme A is chemically a thiol, it can react with carboxylic acids to form thioesters, thus functioning as an acyl group carrier. It assists in transferring fatty acids from the cytoplasm to mitochondria. Specifically (S)-Hydroxyoctanoyl-CoA is involved in fatty acid metabolism. It is the product of a reaction between 3-Oxooctanoyl-CoA and two enzymes; 3-hydroxyacyl-CoA Dehydrogenase and long-chain- 3-hydroxyacyl-CoA dehydrogenase.
3-Oxooctanoyl-CoA
3-Oxooctanoyl-CoA is the substrate of the acetyl-CoA C-acyltransferase/oxoacyl-CoA thiolase A (EC 2.3.1.16, SCP2/3-oxoacyl-CoA thiolase) present in peroxisomes from normal liver. Peroxisomes beta -oxidize a wide variety of substrates including straight chain fatty acids, 2-methyl-branched fatty acids, and the side chain of the bile acid intermediates di- and trihydroxycoprostanic acids. Peroxisomes contain several beta -oxidation pathways with different substrate specificities; or example, straight chain acyl-CoAs are desaturated by palmitoyl-CoA oxidase, and their enoyl-CoAs are then converted to 3-oxoacyl-CoAs by MFP-1, which forms (hydration) and dehydrogenates L-3(3S)-hydroxyacyl-CoAs; for example, straight chain acyl-CoAs are desaturated by palmitoyl-CoA oxidase (23), and their enoyl-CoAs are then converted to 3-oxoacyl-CoAs by 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35), which forms (hydration) and dehydrogenates L-3(3S)-hydroxyacyl-CoAs and their enoyl-CoAs are then converted to the corresponding 3-oxoacyl-CoAs by long-chain-enoyl-CoA hydratase(EC 4.2.1.74), which forms and dehydrogenates D-3(3R)-hydroxyacyl-CoAs. (PMID: 9325339). 3-Oxooctanoyl-CoA is the substrate of the acetyl-CoA C-acyltransferase/oxoacyl-CoA thiolase A (EC 2.3.1.16, SCP2/3-oxoacyl-CoA thiolase) present in peroxisomes from normal liver.
(S)-Hydroxyhexanoyl-CoA
C27H46N7O18P3S (881.1832806000001)
(s)-3-hydroxyhexanoyl-coa is a member of the class of compounds known as (s)-3-hydroxyacyl coas (s)-3-hydroxyacyl coas are organic compounds containing a (S)-3-hydroxyl acylated coenzyme A derivative. Thus, (s)-3-hydroxyhexanoyl-coa is considered to be a fatty ester lipid molecule (s)-3-hydroxyhexanoyl-coa is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). (s)-3-hydroxyhexanoyl-coa can be found in a number of food items such as common grape, yam, grass pea, and roman camomile, which makes (s)-3-hydroxyhexanoyl-coa a potential biomarker for the consumption of these food products. (S)-Hydroxyhexanoyl-CoA is an intermediate in fatty acid metabolism, being the substrate of the enzymes beta-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.211) and 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35). (S)-Hydroxyhexanoyl-CoA is also an intermediate in fatty acid elongation in mitochondria, the substrate of the enzymes enoyl-CoA hydratase (EC 4.2.1.17) and long-chain-enoyl-CoA hydratase (EC 4.2.1.74) (KEGG).
3-Oxohexanoyl-CoA
3-Oxohexanoyl-CoA is an intermediate in Fatty acid elongation in mitochondria. 3-Oxohexanoyl-CoA is the 3rd to last step in the synthesis of Hexanoyl-CoA and is converted from Butanoyl-CoA via the enzyme acetyl-CoA acyltransferase 2 (EC 2.3.1.16). It is then converted to (S)-Hydroxyhexanoyl-CoA via the 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35). [HMDB]. 3-Oxohexanoyl-CoA is found in many foods, some of which are soy bean, cloudberry, other bread, and lemon thyme. 3-Oxohexanoyl-CoA is an intermediate in Fatty acid elongation in mitochondria. 3-Oxohexanoyl-CoA is the 3rd to last step in the synthesis of Hexanoyl-CoA and is converted from Butanoyl-CoA via the enzyme acetyl-CoA acyltransferase 2 (EC 2.3.1.16). It is then converted to (S)-Hydroxyhexanoyl-CoA via the 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.35).
Hexanoyl-CoA
C27H46N7O17P3S (865.1883656000001)
Hexanoyl-CoA, also known as hexanoyl-coenzyme A or caproyl-CoA, is a medium-chain fatty acyl-CoA having hexanoyl as the acyl group. Hexanoyl-CoA is slightly soluble (in water) and an extremely strong acidic compound (based on its pKa). Within the cell, hexanoyl-CoA is primarily located in the membrane (predicted from logP). It can also be found in the extracellular space. Hexanoyl-CoA exists in all living organisms, ranging from bacteria to humans. In humans, hexanoyl-CoA is involved in the biosynthesis and oxidation of fatty acids as well as in ceramide formation. Hexanoyl-CoA is also involved in few metabolic disorders, such as fatty acid elongation in mitochondria, mitochondrial beta-oxidation of medium chain saturated fatty acids, and mitochondrial beta-oxidation of short chain saturated fatty acids. Fatty acid coenzyme A derivative that can be involved in the biosynthesis and oxidation of fatty acids as well as in ceramide formation. [HMDB]
trans-2-Hexenoyl-CoA
trans-Hexenoyl-CoA is an intermediate in fatty acid metabolism. Beta-oxidation occurs in both mitochondria and peroxisomes. Mitochondria catalyze the beta-oxidation of the bulk of short-, medium-, and long-chain fatty acids derived from diet, and this pathway constitutes the major process by which fatty acids are oxidized to generate energy. Peroxisomes are involved in the beta-oxidation chain shortening of long-chain and very-long-chain fatty acyl-coenzyme (CoAs), long-chain dicarboxylyl-CoAs, the CoA esters of eicosanoids, 2-methyl-branched fatty acyl-CoAs, and the CoA esters of the bile acid intermediates di- and trihydroxycoprostanoic acids, and in the process they generate H2O2. Long-chain and very-long-chain fatty acids (VLCFAs) are also metabolized by the cytochrome P450 CYP4A omega-oxidation system to dicarboxylic acids that serve as substrates for peroxisomal beta-oxidation. The peroxisomal beta-oxidation system consists of (a) a classical peroxisome proliferator-inducible pathway capable of catalyzing straight-chain acyl-CoAs by fatty acyl-CoA oxidase, L-bifunctional protein, and thiolase, and (b) a second noninducible pathway catalyzing the oxidation of 2-methyl-branched fatty acyl-CoAs by branched-chain acyl-CoA oxidase (pristanoyl-CoA oxidase/trihydroxycoprostanoyl-CoA oxidase), D-bifunctional protein, and sterol carrier protein (SCP)x. trans-Hexenoyl-CoA is the substrate of the enzymes enoyl-coenzyme A reductase, acyl-CoA oxidase [EC 1.3.99.2-1.3.3.6], acyl-CoA dehydrogenase, long-chain-acyl-CoA dehydrogenase [EC 1.3.99.3-1.3.99.13], and Oxidoreductases [EC 1.3.99.-]; trans-Hexenoyl-CoA is an intermediate in fatty acid elongation in mitochondria, being the substrate of the enzymes enoyl-CoA hydratase and long-chain-enoyl-CoA hydratase [EC 4.2.1.17-4.2.1.74]. (PMID: 11375435). trans-Hexenoyl-CoA is an intermediate in fatty acid metabolism. beta-oxidation occurs in both mitochondria and peroxisomes. mitochondria catalyze the beta-oxidation of the bulk of short-, medium-, and long-chain fatty acids derived from diet, and this pathway constitutes the major process by which fatty acids are oxidized to generate energy. Peroxisomes are involved in the beta-oxidation chain shortening of long-chain and very-long-chain fatty acyl-coenzyme (CoAs), long-chain dicarboxylyl-CoAs, the CoA esters of eicosanoids, 2-methyl-branched fatty acyl-CoAs, and the CoA esters of the bile acid intermediates di- and trihydroxycoprostanoic acids, and in the process they generate H2O2. Long-chain and very-long-chain fatty acids (VLCFAs) are also metabolized by the cytochrome P450 CYP4A omega-oxidation system to dicarboxylic acids that serve as substrates for peroxisomal beta-oxidation. The peroxisomal beta-oxidation system consists of (a) a classical peroxisome proliferator-inducible pathway capable of catalyzing straight-chain acyl-CoAs by fatty acyl-CoA oxidase, L-bifunctional protein, and thiolase, and (b) a second noninducible pathway catalyzing the oxidation of 2-methyl-branched fatty acyl-CoAs by branched-chain acyl-CoA oxidase (pristanoyl-CoA oxidase/trihydroxycoprostanoyl-CoA oxidase), D-bifunctional protein, and sterol carrier protein (SCP)x.
(2E)-Hexadecenoyl-CoA
C37H64N7O17P3S (1003.3292084000001)
(2E)-Hexadecenoyl-CoA is an intermediate in fatty acid metabolism, the substrate of the enzyme enoyl-CoA hydratase [EC:4.2.1.17]; (2E)-Hexadecenoyl-CoA is also the substrate of the enzyme trans-2-enoyl-CoA reductase [EC:1.3.1.38], in the fatty acid elongation pathway in mitochondria. (PMID: 1278159, KEGG) [HMDB] (2E)-Hexadecenoyl-CoA is an intermediate in fatty acid metabolism, the substrate of the enzyme enoyl-CoA hydratase [EC:4.2.1.17]; (2E)-Hexadecenoyl-CoA is also the substrate of the enzyme trans-2-enoyl-CoA reductase [EC:1.3.1.38], in the fatty acid elongation pathway in mitochondria. (PMID: 1278159, KEGG).
(2E)-Tetradecenoyl-CoA
C35H60N7O17P3S (975.2979100000001)
(2E)-Tetradecenoyl-CoA is an intermediate in fatty acid metabolism, the substrate of the enzymes acyl-CoA oxidase and Oxidoreductases [EC 1.3.3.6-1.3.99.-] and enzymes acyl-CoA dehydrogenase, long-chain-acyl-CoA dehydrogenase [EC 1.3.99.3-1.3.99.13]; (2E)-Tetradecenoyl-CoA is an intermediate in fatty acid elongation in mitochondria, being the substrate of the enzyme trans-2-enoyl-CoA reductase (NADPH) [EC 1.3.1.38]. (KEGG) [HMDB] (2E)-Tetradecenoyl-CoA is an intermediate in fatty acid metabolism, the substrate of the enzymes acyl-CoA oxidase and Oxidoreductases [EC 1.3.3.6-1.3.99.-] and enzymes acyl-CoA dehydrogenase, long-chain-acyl-CoA dehydrogenase [EC 1.3.99.3-1.3.99.13]; (2E)-Tetradecenoyl-CoA is an intermediate in fatty acid elongation in mitochondria, being the substrate of the enzyme trans-2-enoyl-CoA reductase (NADPH) [EC 1.3.1.38]. (KEGG).
(2E)-Decenoyl-CoA
(2E)-Decenoyl-CoA is a beta-oxidation intermediate, the substrate of the enzyme peroxisomal acyl-CoA thioesterase 2 (PTE-2, 3.1.2.2), which is localized in the peroxisome. The peroxisomal beta-oxidation system contains two sets of enzymes, one of which is involved in the oxidation of branched chain fatty acids and intermediates in the hepatic bile acid biosynthetic pathway and consists of one or two branched-chain acyl-CoA oxidase(s), a D-specific bifunctional protein and the sterol carrier-like protein x (SCPx). Peroxisomes are cellular organelles present in all eukaryotic cells. They play an indispensable role in the metabolism of a variety of lipids including very long-chain fatty acids, dicarboxylic fatty acids, bile acids, prostaglandins, leukotrienes, thromboxanes, pristanic acid, and xenobiotic fatty acids. (PMID: 11673457) [HMDB] (2E)-Decenoyl-CoA is a beta-oxidation intermediate, the substrate of the enzyme peroxisomal acyl-CoA thioesterase 2 (PTE-2, 3.1.2.2), which is localized in the peroxisome. The peroxisomal beta-oxidation system contains two sets of enzymes, one of which is involved in the oxidation of branched chain fatty acids and intermediates in the hepatic bile acid biosynthetic pathway and consists of one or two branched-chain acyl-CoA oxidase(s), a D-specific bifunctional protein and the sterol carrier-like protein x (SCPx). Peroxisomes are cellular organelles present in all eukaryotic cells. They play an indispensable role in the metabolism of a variety of lipids including very long-chain fatty acids, dicarboxylic fatty acids, bile acids, prostaglandins, leukotrienes, thromboxanes, pristanic acid, and xenobiotic fatty acids. (PMID: 11673457).
S-2-Octenoyl CoA
S-2-Octenoyl coenzyme A is an intermediate metabolite of fatty acid metabolism. Mitochondrial beta-oxidation of saturated acyl-CoA esters proceeds by a repeated cycle of four concerted reactions: flavoprotein-linked dehydrogenation, hydration, NAD-linked dehydrogenation and thiolysis. The three chain-length-specific acyl-CoA dehydrogenases which catalyse the first dehydrogenation step are linked to the respiratory chain by the electron-transferring flavoprotein (ETF) and ETF: ubiquinone oxidoreductase (ETF: QO). The second dehydrogenation step is catalysed by two chain-length-specific NAD+-dependent 3-hydroxyacyl-CoA dehydrogenases. The control of beta-oxidation in the mitochondrial matrix occurs at several steps and depends on the redox state and the rate of recycling of CoA. The rate is lowered with reduced states, since high NAD+/NADH ratios impair the activity of the hydroxyacyl-CoA dehydrogenase and increase the formation of ETF semiquinone (ETFSq), which is a potent inhibitor of the acyl-CoA dehydrogenases. These changes affect the steady-state concentrations of acyl-CoA intermediates, which in turn may change the control strength of other enzymes of the pathway. In liver mitochondria, acetyl-CoA produced by each cycle of beta-oxidation has four major routes of disposal: ketogenesis, oxidation by the citrate cycle, conversion into acetylcarnitine or hydrolysis to acetate; each of these reactions generates free CoA. During maximum flux through beta-oxidation, up to 95 \\% of the mitochondrial CoA pool is acylated, and thus the rate of recycling of CoA may partly control beta-oxidation. Increased steady-state concentrations of some acyl-CoA esters may also occur when one or more of the enzymes of beta-oxidation is inhibited, as in hypoglycin poisoning, or where one or more of the enzymes of the pathway is absent. Such inborn errors of beta-oxidation are being increasingly recognized as important causes of disease, especially in children, and deficiencies of long-chain-acyl-CoA dehydrogenase, medium-chain-acyl-CoA dehydrogenase, short-chain-acyl-CoA dehydrogenase, ETF, ETF: QO and acetoacetyl-CoA thiolase have been described. (PMID: 2818568).
D-Xylulose-5-phosphate
Xylulose 5-phosphate (Xu-5-P) is a metabolite of the hexose monophosphate pathway that activates protein phosphatase 2A to mediate the acute effects of carbohydrate feeding on the glycolytic pathway, as well as the coordinate long-term control of the enzymes required for fatty acid and triglyceride synthesis. Xu-5-P is the signal for the coordinated control of lipogenesis. Feeding carbohydrate causes levels of liver glucose, Glucose-6-phosphate (Glc-6-P), and Fructose-6-phosphate (Fru-6-P) to rise. Elevation of Fru-6-P leads to elevation of Xu-5-P in reactions catalyzed by the near-equilibrium isomerases of the nonoxidative portion of the hexose monophosphate pathway (ribulose 5-phosphate (Ru5P) epimerase [EC 5.1.3.1], ribose 5-phosphate (Rib5P) isomerase [EC 5.3.1.6], transaldolase [EC 2.2.1.2], and transketolase [EC 2.2.1.1]). The elevation of Xu-5-P is the coordinating signal that both acutely activates phosphofructokinase [PFK; EC 2.7.1.11] in glycolysis and promotes the action of the transcription factor carbohydrate responsive element binding protein (ChREBP) to increase transcription of the genes for the enzymes of lipogenesis, the hexose monophosphate shunt, and glycolysis, all of which are required for the de novo synthesis of fat. (PMID 12721358). D-Xylulose 5-phosphate. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=4212-65-1 (retrieved 2024-07-16) (CAS RN: 4212-65-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
D-Alanine
Alanine is a nonessential amino acid made in the body from the conversion of the carbohydrate pyruvate or the breakdown of DNA and the dipeptides carnosine and anserine. It is highly concentrated in muscle and is one of the most important amino acids released by muscle, functioning as a major energy source. Plasma alanine is often decreased when the BCAA (Branched Chain Amino Acids) are deficient. This finding may relate to muscle metabolism. Alanine is highly concentrated in meat products and other high-protein foods like wheat germ and cottage cheese. Alanine is an important participant as well as regulator in glucose metabolism. Alanine levels parallel blood sugar levels in both diabetes and hypoglycemia, and alanine reduces both severe hypoglycemia and the ketosis of diabetes. It is an important amino acid for lymphocyte reproduction and immunity. Alanine therapy has helped dissolve kidney stones in experimental animals. Normal alanine metabolism, like that of other amino acids, is highly dependent upon enzymes that contain vitamin B6. Alanine, like GABA, taurine and glycine, is an inhibitory neurotransmitter in the brain. Alanine can be found in some Gram-positive bacteria (PMID:24752840). Amino acids are one of the most important molecules in living organisms, and most of them have a chiral carbon at a -position. In the higher animals, a large part of the naturally occurring amino acids is the L-form, and the stereoisomers (D-amino acids) had been believed to be rare. However, several D-amino acids have been found in mammals including humans, and their distributions, functions and origins have gradually been clarified. The D-alanine (D-Ala) amounts have also been reported to change in the case of diseases. Proteins of the frontal lobe white and gray matter of human brains, both normal and Alzheimer subjects, contain D-alanine at concentrations between 0.50 and 1.28 mumol/g of wet tissue, 50-70-times lower than the concentration of L-alanine. D-Alanine have been detected in the sera of both normal subjects and patients with renal dysfunction, and their concentrations were higher in the patients than in the normal subjects. (PMID: 16141519, 1450921, 8535409, 1426150, 1933416) [HMDB] KEIO_ID A011 D-Alanine is a weak GlyR (inhibitory glycine receptor) and PMBA agonist, with an EC50 of 9 mM for GlyR. D-Alanine is a weak GlyR (inhibitory glycine receptor) and PMBA agonist, with an EC50 of 9 mM for GlyR.
Beta-D-Fructose 6-phosphate
Beta-D-Fructose 6 phosphate (b-F6P) is the beta-anomer of fructose-6-phosphate. There are two anomers of fructose 6 phosphate, the alpha anomer and the beta anomer. Specifically, beta-D-fructose 6-phosphate is fructose sugar phosphorylated on carbon 6. Beta-D-Fructose 6-phosphate is a substrate for Fructose-1,6-bisphosphatase, Pyruvate kinase (isozymes R/L), Hexokinase (type I), Fructose-bisphosphate aldolase A, L-lactate dehydrogenase B chain, Glyceraldehyde-3-phosphate dehydrogenase (liver) and Transaldolase. [HMDB] Beta-D-Fructose 6 phosphate (b-F6P) is the beta-anomer of fructose-6-phosphate. There are two anomers of fructose 6 phosphate, the alpha anomer and the beta anomer. Specifically, beta-D-fructose 6-phosphate is fructose sugar phosphorylated on carbon 6. Beta-D-Fructose 6-phosphate is a substrate for Fructose-1,6-bisphosphatase, Pyruvate kinase (isozymes R/L), Hexokinase (type I), Fructose-bisphosphate aldolase A, L-lactate dehydrogenase B chain, Glyceraldehyde-3-phosphate dehydrogenase (liver) and Transaldolase.
alpha-D-Glucose 6-phosphate
A D-glucopyranose 6-phosphate where alpha-D-glucose is the sugar component. [Spectral] alpha-D-Glucose 6-phosphate (exact mass = 260.02972) and L-Isoleucine (exact mass = 131.09463) and 3-Sulfino-L-alanine (exact mass = 153.00958) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions. [Spectral] alpha-D-Glucose 6-phosphate (exact mass = 260.02972) and 3-Sulfino-L-alanine (exact mass = 153.00958) were not completely separated on HPLC under the present analytical conditions as described in AC$XXX. Additionally some of the peaks in this data contains dimers and other unidentified ions.