Reaction Process: Reactome:R-CFA-71387
Carbohydrate metabolism related metabolites
find 78 related metabolites which is associated with chemical reaction(pathway) Carbohydrate metabolism
D-glucuronate + H+ + TPNH ⟶ L-gulonate + TPN
Fructose
A D-fructopyranose in which the anomeric centre has beta-configuration. Fructose, a member of a group of carbohydrates known as simple sugars, or monosaccharides. Fructose, along with glucose, occurs in fruits, honey, and syrups; it also occurs in certain vegetables. It is a component, along with glucose, of the disaccharide sucrose, or common table sugar. Phosphate derivatives of fructose (e.g., fructose-1-phosphate, fructose-1,6-diphosphate) are important in the metabolism of carbohydrates. D-fructopyranose is a fructopyranose having D-configuration. It has a role as a sweetening agent. It is a fructopyranose, a D-fructose and a cyclic hemiketal. D-Fructose is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). D-Fructose is a natural product found in Gentiana orbicularis, Colchicum schimperi, and other organisms with data available. A monosaccharide in sweet fruits and honey that is soluble in water, alcohol, or ether. It is used as a preservative and an intravenous infusion in parenteral feeding. Fructose is a levorotatory monosaccharide and an isomer of glucose. Although fructose is a hexose (6 carbon sugar), it generally exists as a 5-member hemiketal ring (a furanose). D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants. D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants. Fructose is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose. Fructose is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose.
D-Xylitol
Xylitol is a five-carbon sugar alcohol that is obtained through the diet. It is not endogenously produced by humans. Xylitol is used as a diabetic sweetener which is roughly as sweet as sucrose with 33\\\\\\% fewer calories. Xylitol is naturally found in many fruits (strawberries, plums, raspberries) and vegetables (e.g. cauliflower). Because of fruit and vegetable consumption the human body naturally processes 15 grams of xylitol per day. Xylitol can be produced industrially starting from primary matters rich in xylan which is hydrolyzed to obtain xylose. It is extracted from hemicelluloses present in the corn raids, the almond hulls or the barks of birch (or of the by-products of wood: shavings hard, paper pulp). Of all polyols, it is the one that has the sweetest flavor (it borders that of saccharose). It gives a strong refreshing impression, making xylitol an ingredient of choice for the sugarless chewing gum industry. In addition to his use in confectionery, it is used in the pharmaceutical industry for certain mouthwashes and toothpastes and in cosmetics (creams, soaps, etc.). Xylitol is produced starting from xylose, the isomaltose, by enzymatic transposition of the saccharose (sugar). Xylitol is not metabolized by cariogenic (cavity-causing) bacteria and gum chewing stimulates the flow of saliva; as a result, chewing xylitol gum may prevent dental caries. Chewing xylitol gum for 4 to 14 days reduces the amount of dental plaque. The reduction in the amount of plaque following xylitol gum chewing within 2 weeks may be a transient phenomenon. Chewing xylitol gum for 6 months reduced mutans streptococci levels in saliva and plaque in adults (PMID:17426399, 15964535). Studies have also shown xylitol chewing gum can help prevent acute otitis media (ear aches and infections) as the act of chewing and swallowing assists with the disposal of earwax and clearing the middle ear, while the presence of xylitol prevents the growth of bacteria in the eustachian tubes. Xylitol is well established as a life-threatening toxin to dogs. The number of reported cases of xylitol toxicosis in dogs has significantly increased since the first reports in 2002. Dogs that have ingested foods containing xylitol (greater than 100 milligrams of xylitol consumed per kilogram of bodyweight) have presented with low blood sugar (hypoglycemia), which can be life-threatening. Xylitol is found to be associated with ribose-5-phosphate isomerase deficiency, which is an inborn error of metabolism. Occurs in a variety of plants, berries and fruits including plums, raspberries, cauliflower and endive; sweetening agent used in sugar free sweets and chewing gum D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Ribitol is a crystalline pentose alcohol formed by the reduction of ribose. Enhancing the flux of D-glucose to the pentose phosphate pathway in Saccharomyces cerevisiae for the production of D-ribose and ribitol. Xylitol can be classified as polyols and sugar alcohols. Xylitol can be classified as polyols and sugar alcohols.
Sedoheptulose 7-phosphate
KEIO_ID S083
alpha-D-Glucose 1,6-bisphosphate
Glucose 1,6-diphosphate (G-1,6-P2) is considered to be a major regulator of carbohydrate metabolism. It has been demonstrated that G-1,6-P2 is a potent activator (deinhibitor) of skeletal muscle phosphofructokinase (PFK) and phosphoglucomutase, while being an inhibitor of hexokinase (see Ref. 2). In addition, G-1,6-P2 has been shown to inhibit 6-phosphogluconate dehydrogenase in various rat tissues and fructose 1,6-bisphosphatase in bovine liver. Various factors and conditions affect the tissue content of G-1,6-P2. Specifically, anoxia induces a rapid fall in the content of G-l,6-P2 in the brain. Glucose 1,6-diphosphate has been recognized as a regulatory signal implicated in the control of metabolism, oxygen affinity of red cells, and other cellular functions. The levels of G 1,6-P2 are reduced in the liver and in the muscle of rats with experimentally induced diabetes. In muscle of genetically dystrophic mice, a decrease in the levels of G 1,6-P2 has been found, probably resulting from enhancement of glucose 1,6-P2 phosphatase activity. G 1,6-P2 is an inhibitor of hexokinase and its level is increased significantly after 5 min of exercise (~25\\%) and then decreased continuously. G 1,6-P2 is a potent allosteric activator of phosphofructokinase, and is markedly decreased in muscles of patients with glycogenosis type VII (muscle phosphofructokinase deficiency) and type V (muscle phosphorylase deficiency). Chronic alcohol intake produces an increase in the concentration of G 1,6-P2 in human muscle before the first sign of myopathy appears. When myopathy is present the level decreases to be similar to healthy humans. These changes could contribute to the decline in skeletal muscle performance (PMID:1449560, 2018547, 2003594, 3407759). Glucose 1,6-diphosphate is considered to be a major regulator of carbohydrate metabolism. It has been demonstrated that G-1,6-P2 is a potent activator (deinhibitor) of skeletal muscle phosphofructokinase (PFK) and phosphoglucomutase, while being an inhibitor of hexokinase (see Ref. 2). In addition, G-1,6 P2 has been shown to inhibit 6-phosphogluconate dehydrogenase in various rat tissues and fructose 1,6-bisphosphatase in bovine liver. Various factors and conditions affect the tissue content of G-1,6-P2. Specifically, anoxia induce a rapid fall in the content of G-l,6-P2 in brain. Glucose 1,6-diphosphate (G 1,6-P2 )have been recognized as a regulatory signal implicated in the control of metabolism, oxygen affinity of red cells and other cellular functions. The levels of G 1,6-P2 are reduced in the liver and in the muscle of rats with experimentally induced diabetes. In muscle of genetically dystrophic mice a decrease in the levels of G 1,6-P2 has been found, probably resulting from enhancement of glucose 1,6-P2 phosphatase activity. G 1,6-P2 is an inhibitor of hexokinase and its level is increased significantly after 5 min of exercise (~ 25\\%) and then decreased continuously. G 1,6-P2 is a potent allosteric activator of phosphofructokinase, and is markedly decreased in muscles of patients with glycogenosis type VII (muscle phosphofructokinase deficiency) and type V (muscle phosphorylase deficiency). Acquisition and generation of the data is financially supported in part by CREST/JST.
Glucosamine 6-phosphate
C6H14NO8P (259.04570140000004)
Glucosamine 6-phosphate (CAS: 3616-42-0) is normally produced in endothelial cells via de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. Glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals.It is a member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus (PMID:11270676, 11842094). Glucosamine 6-phosphate is normally produced in endothelial cells via the de novo glucosamine synthesis by the enzyme fructose-6-phosphate amidotransferase and the modulation of this pathway by hyperglycemia and glutamine. glutamine-fructose-6-phosphate amidotransferase (GFAT) catalyzes the first committed step in the pathway for biosynthesis of hexosamines in mammals. A member of the N-terminal nucleophile class of amidotransferases, GFAT transfers the amino group from the L-glutamine amide to D-fructose 6-phosphate, producing glutamic acid and glucosamine 6-phosphate. As glucosamine inhibits endothelial nitric oxide synthesis it has important implications for impaired endothelium-dependent relaxation and vascular dysfunction in diabetes mellitus. (PMID 11270676, 11842094) [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G021; [MS2] KO008968 KEIO_ID G021
Glycoprotein-phospho-D-mannose
Glycoprotein-phospho-D-mannose, also known as (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal or Mannose homopolymer, is classified as a member of the Hexoses. Hexoses are monosaccharides in which the sugar unit is a is a six-carbon containing moeity. Glycoprotein-phospho-D-mannose is considered to be soluble (in water) and acidic
Glyceraldehyde
DL-Glyceraldehyde is a monosaccharide. DL-Glyceraldehyde is the simplest aldose. DL-Glyceraldehyde can be used for various biochemical studies[1].
Acetic acid
Acetic acid is a two-carbon, straight-chain fatty acid. It is the smallest short-chain fatty acid (SCFA) and one of the simplest carboxylic acids. is an acidic, colourless liquid and is the main component in vinegar. Acetic acid has a sour taste and pungent smell. It is an important chemical reagent and industrial chemical that is used in the production of plastic soft drink bottles, photographic film; and polyvinyl acetate for wood glue, as well as many synthetic fibres and fabrics. In households diluted acetic acid is often used as a cleaning agent. In the food industry acetic acid is used as an acidity regulator. Acetic acid is found in all organisms, from bacteria to plants to humans. The acetyl group, derived from acetic acid, is fundamental to the biochemistry of virtually all forms of life. When bound to coenzyme A (to form acetylCoA) it is central to the metabolism of carbohydrates and fats. However, the concentration of free acetic acid in cells is kept at a low level to avoid disrupting the control of the pH of the cell contents. Acetic acid is produced and excreted in large amounts by certain acetic acid bacteria, notably the Acetobacter genus and Clostridium acetobutylicum. These bacteria are found universally in foodstuffs, water, and soil. Due to their widespread presence on fruit, acetic acid is produced naturally as fruits and many other sugar-rich foods spoil. Several species of anaerobic bacteria, including members of the genus Clostridium and Acetobacterium can convert sugars to acetic acid directly. However, Clostridium bacteria are less acid-tolerant than Acetobacter. Even the most acid-tolerant Clostridium strains can produce acetic acid in concentrations of only a few per cent, compared to Acetobacter strains that can produce acetic acid in concentrations up to 20\\%. Acetic acid is also a component of the vaginal lubrication of humans and other primates, where it appears to serve as a mild antibacterial agent. Acetic acid can be found in other biofluids such as urine at low concentrations. Urinary acetic acid is produced by bacteria such as Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Enterobacter, Acinetobacter, Proteus mirabilis, Citrobacter frundii, Enterococcus faecalis, Streptococcus group B, Staphylococcus saprophyticus (PMID: 22292465). Acetic acid concentrations greater than 30 uM/mM creatinine in the urine can indicate a urinary tract infection, which typically suggests the presence of E. coli or Klebshiella pneumonia in the urinary tract. (PMID: 24909875) Acetic acid is also produced by other bacteria such as Akkermansia, Bacteroidetes, Bifidobacterium, Prevotella and Ruminococcus (PMID: 20444704; PMID: 22292465). G - Genito urinary system and sex hormones > G01 - Gynecological antiinfectives and antiseptics > G01A - Antiinfectives and antiseptics, excl. combinations with corticosteroids > G01AD - Organic acids S - Sensory organs > S02 - Otologicals > S02A - Antiinfectives > S02AA - Antiinfectives D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents It is used for smoking meats and fish C254 - Anti-Infective Agent KEIO_ID A029
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
D-Ribose
D-Ribose, commonly referred to as simply ribose, is a five-carbon sugar found in all living cells. Ribose is not an essential nutrient because it can be synthesized by almost every tissue in the body from other substances, such as glucose. It is vital for life as a component of DNA, RNA, ATP, ADP, and AMP. In nature, small amounts of ribose can be found in ripe fruits and vegetables. Brewers yeast, which has a high concentration of RNA, is another rich source of ribose. D-ribose is also a component of many so-called energy drinks and anti-ageing products available on the market today. Ribose is a structural component of ATP, which is the primary energy source for exercising muscle. The adenosine component is an adenine base attached to the five-carbon sugar ribose. ATP provides energy to working muscles by releasing a phosphate group, hence becoming ADP, which in turn may release a phosphate group, then becoming AMP. During intense muscular activity, the total amount of ATP available is quickly depleted. In an effort to correct this imbalance, AMP is broken down in the muscle and secreted from the cell. Once the breakdown products of AMP are released from the cell, the energy potential (TAN pool) of the muscle is reduced and ATP must then be reformed using ribose. Ribose helps restore the level of adenine nucleotides by bypassing the rate-limiting step in the de novo (oxidative pentose phosphate) pathway, which regenerates phosphoribosyl pyrophosphate (PRPP), the essential precursor for ATP. If ribose is not readily available to a cell, glucose may be converted to ribose. Ribose supplementation has been shown to increase the rate of ATP resynthesis following intense exercise. The use of ribose in men with severe coronary artery disease resulted in improved exercise tolerance. Hence, there is interest in the potential of ribose supplements to boost muscular performance in athletic activities (PMID: 17618002, Curr Sports Med Rep. 2007 Jul;6(4):254-7.). Ribose, also known as D-ribose or alpha-delta-ribose-5, is a member of the class of compounds known as pentoses. Pentoses are monosaccharides in which the carbohydrate moiety contains five carbon atoms. Ribose is very soluble (in water) and a very weakly acidic compound (based on its pKa). Ribose can be found in a number of food items such as lemon verbena, devilfish, watercress, and chicory roots, which makes ribose a potential biomarker for the consumption of these food products. Ribose can be found primarily in most biofluids, including urine, cerebrospinal fluid (CSF), saliva, and feces, as well as throughout most human tissues. Ribose exists in all living species, ranging from bacteria to humans. In humans, ribose is involved in the pentose phosphate pathway. Ribose is also involved in few metabolic disorders, which include glucose-6-phosphate dehydrogenase deficiency, ribose-5-phosphate isomerase deficiency, and transaldolase deficiency. Moreover, ribose is found to be associated with ribose-5-phosphate isomerase deficiency. The ribose β-D-ribofuranose forms part of the backbone of RNA. It is related to deoxyribose, which is found in DNA. Phosphorylated derivatives of ribose such as ATP and NADH play central roles in metabolism. cAMP and cGMP, formed from ATP and GTP, serve as secondary messengers in some signalling pathways . D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1]. D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1]. D-Ribose(mixture of isomers) is an energy enhancer, and acts as a sugar moiety of ATP, and widely used as a metabolic therapy supplement for chronic fatigue syndrome or cardiac energy metabolism. D-Ribose(mixture of isomers) is active in protein glycation, induces NF-κB inflammation in a RAGE-dependent manner[1].
Water
Water is a chemical substance that is essential to all known forms of life. It appears colorless to the naked eye in small quantities, though it is actually slightly blue in color. It covers 71\\% of Earths surface. Current estimates suggest that there are 1.4 billion cubic kilometers (330 million m3) of it available on Earth, and it exists in many forms. It appears mostly in the oceans (saltwater) and polar ice caps, but it is also present as clouds, rain water, rivers, freshwater aquifers, lakes, and sea ice. Water in these bodies perpetually moves through a cycle of evaporation, precipitation, and runoff to the sea. Clean water is essential to human life. In many parts of the world, it is in short supply. From a biological standpoint, water has many distinct properties that are critical for the proliferation of life that set it apart from other substances. It carries out this role by allowing organic compounds to react in ways that ultimately allow replication. All known forms of life depend on water. Water is vital both as a solvent in which many of the bodys solutes dissolve and as an essential part of many metabolic processes within the body. Metabolism is the sum total of anabolism and catabolism. In anabolism, water is removed from molecules (through energy requiring enzymatic chemical reactions) in order to grow larger molecules (e.g. starches, triglycerides and proteins for storage of fuels and information). In catabolism, water is used to break bonds in order to generate smaller molecules (e.g. glucose, fatty acids and amino acids to be used for fuels for energy use or other purposes). Water is thus essential and central to these metabolic processes. Water is also central to photosynthesis and respiration. Photosynthetic cells use the suns energy to split off waters hydrogen from oxygen. Hydrogen is combined with CO2 (absorbed from air or water) to form glucose and release oxygen. All living cells use such fuels and oxidize the hydrogen and carbon to capture the suns energy and reform water and CO2 in the process (cellular respiration). Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H+, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as hydroxide ion (OH-) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7. Acids have pH values less than 7 while bases have values greater than 7. Stomach acid (HCl) is useful to digestion. However, its corrosive effect on the esophagus during reflux can temporarily be neutralized by ingestion of a base such as aluminum hydroxide to produce the neutral molecules water and the salt aluminum chloride. Human biochemistry that involves enzymes usually performs optimally around a biologically neutral pH of 7.4. (Wikipedia). Water, also known as purified water or dihydrogen oxide, 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. Water can be found in a number of food items such as caraway, oxheart cabbage, alaska wild rhubarb, and japanese walnut, which makes water a potential biomarker for the consumption of these food products. Water can be found primarily in most biofluids, including ascites Fluid, blood, cerebrospinal fluid (CSF), and lymph, as well as throughout all human tissues. Water exists in all living species, ranging from bacteria to humans. In humans, water is involved in several metabolic pathways, some of which include cardiolipin biosynthesis CL(20:4(5Z,8Z,11Z,14Z)/18:0/20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)), cardiolipin biosynthesis cl(i-13:0/i-15:0/i-20:0/i-24:0), cardiolipin biosynthesis CL(18:0/18:0/20:4(5Z,8Z,11Z,14Z)/22:5(7Z,10Z,13Z,16Z,19Z)), and cardiolipin biosynthesis cl(a-13:0/i-18:0/i-13:0/i-19:0). Water is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis tg(i-21:0/i-13:0/21:0), de novo triacylglycerol biosynthesis tg(22:0/20:0/i-20:0), de novo triacylglycerol biosynthesis tg(a-21:0/i-20:0/i-14:0), and de novo triacylglycerol biosynthesis tg(i-21:0/a-17:0/i-12:0). Water is a drug which is used for diluting or dissolving drugs for intravenous, intramuscular or subcutaneous injection, according to instructions of the manufacturer of the drug to be administered [fda label]. Water plays an important role in the world economy. Approximately 70\\% of the freshwater used by humans goes to agriculture. Fishing in salt and fresh water bodies is a major source of food for many parts of the world. Much of long-distance trade of commodities (such as oil and natural gas) and manufactured products is transported by boats through seas, rivers, lakes, and canals. Large quantities of water, ice, and steam are used for cooling and heating, in industry and homes. Water is an excellent solvent for a wide variety of chemical substances; as such it is widely used in industrial processes, and in cooking and washing. Water is also central to many sports and other forms of entertainment, such as swimming, pleasure boating, boat racing, surfing, sport fishing, and diving .
Acetaldehyde
Acetaldehyde, also known as ethanal, belongs to the class of organic compounds known as short-chain aldehydes. These are an aldehyde with a chain length containing between 2 and 5 carbon atoms. Acetaldehyde exists in all living species, ranging from bacteria to humans. Within humans, acetaldehyde participates in a number of enzymatic reactions. In particular, acetaldehyde can be biosynthesized from ethanol which is mediated by the enzyme alcohol dehydrogenase 1B. Acetaldehyde can also be converted to acetic acid by the enzyme aldehyde dehydrogenase (mitochondrial) and aldehyde dehydrogenase X (mitochondrial). The main method of production is the oxidation of ethylene by the Wacker process, which involves oxidation of ethylene using a homogeneous palladium/copper system: 2 CH2CH2 + O2 → 2 CH3CHO. In the 1970s, the world capacity of the Wacker-Hoechst direct oxidation process exceeded 2 million tonnes annually. In humans, acetaldehyde is involved in disulfiram action pathway. Acetaldehyde is an aldehydic, ethereal, and fruity tasting compound. Outside of the human body, acetaldehyde is found, on average, in the highest concentration in a few different foods, such as sweet oranges, pineapples, and mandarin orange (clementine, tangerine) and in a lower concentration in . acetaldehyde has also been detected, but not quantified in several different foods, such as malabar plums, malus (crab apple), rose hips, natal plums, and medlars. This could make acetaldehyde a potential biomarker for the consumption of these foods. In condensation reactions, acetaldehyde is prochiral. Acetaldehyde is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Acetaldehyde has been found to be associated with several diseases such as alcoholism, ulcerative colitis, nonalcoholic fatty liver disease, and crohns disease; also acetaldehyde has been linked to the inborn metabolic disorders including aldehyde dehydrogenase deficiency (III) sulfate is used to reoxidize the mercury back to the mercury. Acetaldehyde was first observed by the Swedish pharmacist/chemist Carl Wilhelm Scheele (1774); it was then investigated by the French chemists Antoine François, comte de Fourcroy and Louis Nicolas Vauquelin (1800), and the German chemists Johann Wolfgang Döbereiner (1821, 1822, 1832) and Justus von Liebig (1835). At room temperature, acetaldehyde (CH3CHO) is more stable than vinyl alcohol (CH2CHOH) by 42.7 kJ/mol: Overall the keto-enol tautomerization occurs slowly but is catalyzed by acids. The level at which an average consumer could detect acetaldehyde is still considerably lower than any toxicity. Pathways of exposure include air, water, land, or groundwater, as well as drink and smoke. Acetaldehyde is also created by thermal degradation or ultraviolet photo-degradation of some thermoplastic polymers during or after manufacture. The water industry generally recognizes 20–40 ppb as the taste/odor threshold for acetaldehyde. The level at which an average consumer could detect acetaldehyde is still considerably lower than any toxicity. Flavouring agent and adjuvant used to impart orange, apple and butter flavours; component of food flavourings added to milk products, baked goods, fruit juices, candy, desserts and soft drinks [DFC]
Bicarbonate ion
D019995 - Laboratory Chemicals > D002021 - Buffers > D001639 - Bicarbonates
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).
Glucose
D-Galactose (CAS: 59-23-4) is an aldohexose that occurs naturally in the D-form in lactose, cerebrosides, gangliosides, and mucoproteins. D-Galactose is an energy-providing nutrient and also a necessary basic substrate for the biosynthesis of many macromolecules in the body. Metabolic pathways for D-galactose are important not only for the provision of these pathways but also for the prevention of D-galactose metabolite accumulation. The main source of D-galactose is lactose in the milk of mammals, but it can also be found in some fruits and vegetables. Utilization of D-galactose in all living cells is initiated by the phosphorylation of the hexose by the enzyme galactokinase (E.C. 2.7.1.6) (GALK) to form D-galactose-1-phosphate. In the presence of D-galactose-1-phosphate uridyltransferase (E.C. 2.7.7.12) (GALT) D-galactose-1-phosphate is exchanged with glucose-1-phosphate in UDP-glucose to form UDP-galactose. Glucose-1-phosphate will then enter the glycolytic pathway for energy production. Deficiency of the enzyme GALT in galactosemic patients leads to the accumulation of D-galactose-1-phosphate. Classic galactosemia, a term that denotes the presence of D-galactose in the blood, is the rare inborn error of D-galactose metabolism, diagnosed by the deficiency of the second enzyme of the D-galactose assimilation pathway, GALT, which, in turn, is caused by mutations at the GALT gene (PMID: 15256214, 11020650, 10408771). Galactose in the urine is a biomarker for the consumption of milk. Alpha-D-Pyranose-form of the compound Galactose [CCD]. alpha-D-Galactose is found in many foods, some of which are kelp, fig, spelt, and rape. Galactose. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=59-23-4 (retrieved 2024-07-16) (CAS RN: 59-23-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
Lactose
C12H22O11 (342.11620619999997)
A glycosylglucose disaccharide, found most notably in milk, that consists of D-galactose and D-glucose fragments bonded through a beta-1->4 glycosidic linkage. The glucose fragment can be in either the alpha- or beta-pyranose form, whereas the galactose fragment can only have the beta-pyranose form. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Acquisition and generation of the data is financially supported by the Max-Planck-Society D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents Lactose, a major sugar in the milk of most species, could regulate human’s intestinal microflora. Lactose, a major sugar in the milk of most species, could regulate human’s intestinal microflora. α-Lactose (α-D-Lactose) is the major sugar present in milk. Lactose exists in the form of two anomers, α and β. The α form normally crystallizes as a monohydrate[1][2]. α-Lactose (α-D-Lactose) is the major sugar present in milk. Lactose exists in the form of two anomers, α and β. The α form normally crystallizes as a monohydrate[1][2].
Sorbitol
Sorbitol is a polyhydric alcohol with about half the sweetness of sucrose. Sorbitol occurs naturally and is also produced synthetically from glucose. It was formerly used as a diuretic and may still be used as a laxative and in irrigating solutions for some surgical procedures. It is also used in many manufacturing processes, as a pharmaceutical aid, and in several research applications. Ascorbic acid fermentation; in solution form for moisture-conditioning of cosmetic creams and lotions, toothpaste, tobacco, gelatin; bodying agent for paper, textiles, and liquid pharmaceuticals; softener for candy; sugar crystallization inhibitor; surfactants; urethane resins and rigid foams; plasticizer, stabilizer for vinyl resins; food additive (sweetener, humectant, emulsifier, thickener, anticaking agent); dietary supplement. (Hawleys Condensed Chemical Dictionary) Biological Source: Occurs widely in plants ranging from algae to the higher orders. Fruits of the plant family Rosaceae, which include apples, pears, cherries, apricots, contain appreciable amounts. Rich sources are the fruits of the Sorbus and Crataegus species Use/Importance: Used for manufacturing of sorbose, propylene glycol, ascorbic acid, resins, plasticizers and as antifreeze mixtures with glycerol or glycol. Tablet diluent, sweetening agent and humectant, other food uses. Sorbitol is used in photometric determination of Ru(VI) and Ru(VIII); in acid-base titration of borate (Dictionary of Organic Compounds). Occurs widely in plants ranging from algae to the higher orders. Fruits of the plant family Rosaceae, which include apples, pears, cherries, apricots, contain appreciable amounts. Rich sources are the fruits of the Sorbus and Crataegus subspecies Sweetening agent and humectant and many other food uses. D-Glucitol is found in many foods, some of which are common salsify, other bread, wild rice, and common chokecherry. A - Alimentary tract and metabolism > A06 - Drugs for constipation > A06A - Drugs for constipation > A06AD - Osmotically acting laxatives A - Alimentary tract and metabolism > A06 - Drugs for constipation > A06A - Drugs for constipation > A06AG - Enemas B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05C - Irrigating solutions V - Various > V04 - Diagnostic agents > V04C - Other diagnostic agents > V04CC - Tests for bile duct patency Acquisition and generation of the data is financially supported in part by CREST/JST. D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents D000074385 - Food Ingredients > D005503 - Food Additives D010592 - Pharmaceutic Aids > D005421 - Flavoring Agents D005765 - Gastrointestinal Agents > D002400 - Cathartics D-Sorbitol (Sorbitol) is a six-carbon sugar alcohol and can used as a sugar substitute. D-Sorbitol can be used as a stabilizing excipient and/or isotonicity agent, sweetener, humectant, thickener and dietary supplement[1]. D-Sorbitol (Sorbitol) is a six-carbon sugar alcohol and can used as a sugar substitute. D-Sorbitol can be used as a stabilizing excipient and/or isotonicity agent, sweetener, humectant, thickener and dietary supplement[1].
Galactose 1-phosphate
Galactose 1-phosphate, also known as D-Galactose-1-phosphate or alpha-D-gal-1-P, belongs to the class of organic compounds known as monosaccharide phosphates. These are monosaccharides comprising a phosphate group linked to the carbohydrate unit. Galactose-1-phosphate is an intermediate in the interconversion of glucose and uridine diphosphate galactose. Galactose 1-phosphate exists in all living species, ranging from bacteria to plants to humans. Within humans, galactose 1-phosphate participates in a number of enzymatic reactions. In particular, uridine diphosphate glucose and galactose 1-phosphate can be biosynthesized from uridine diphosphategalactose and glucose 1-phosphate; which is mediated by the enzyme galactose-1-phosphate uridylyltransferase (GALT). In addition, galactose 1-phosphate can be biosynthesized from D-galactose through the action of the enzyme galactokinase. The improper metabolism of galactose-1-phosphate is a characteristic of a condition known as galactosemia (PMID: 7671964). Type I galactosemia is a genetic disorder that is caused by the impairment of galactose-1-phosphate uridylyltransferase (EC 2.7.7.12). Evidence suggests that misfolding of the galactose 1-phosphate uridylyltransferase enzyme is the underlying cause of type I galactosemia (PMID: 23583749). Outside of the human body, galactose 1-phosphate has been detected, but not quantified in, several different foods, such as gooseberries, anises, turmerics, caraway, and cumins. COVID info from COVID-19 Disease Map Occurs in liver, milk, and yeasts 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.
alpha-D-Glucose
alpha-D-Glucose, also known as alpha-dextrose or alpha-D-GLC, belongs to the class of organic compounds known as hexoses. These are monosaccharides in which the sugar unit is a is a six-carbon containing moeity. alpha-D-Glucose exists in all living species, ranging from bacteria to humans. Outside of the human body, alpha-D-Glucose has been detected, but not quantified in several different foods, such as lemon grass, sourdoughs, mixed nuts, sweet rowanberries, and ginsengs. This could make alpha-D-glucose a potential biomarker for the consumption of these foods. D-Glucopyranose having alpha-configuration at the anomeric centre. A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement. COVID info from COVID-19 Disease Map, PDB, Protein Data Bank 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.
Ammonium
Ammonium, also known as ammonium(1+) or nh4+, 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. Ammonium can be found in a number of food items such as irish moss, sago palm, sorghum, and malabar spinach, which makes ammonium a potential biomarker for the consumption of these food products. Ammonium can be found primarily in blood and sweat. Ammonium exists in all living species, ranging from bacteria to humans. In humans, ammonium is involved in the the oncogenic action of 2-hydroxyglutarate. Ammonium is also involved in a couple of metabolic disorders, which include the oncogenic action of d-2-hydroxyglutarate in hydroxygluaricaciduria and the oncogenic action of l-2-hydroxyglutarate in hydroxygluaricaciduria. Moreover, ammonium is found to be associated with n-acetylglutamate synthetase deficiency. The ammonium cation is a positively charged polyatomic ion with the chemical formula NH+ 4. It is formed by the protonation of ammonia (NH3). Ammonium is also a general name for positively charged or protonated substituted amines and quaternary ammonium cations (NR+ 4), where one or more hydrogen atoms are replaced by organic groups (indicated by R) . Ammonium is an important source of nitrogen for many plant species, especially those growing on hypoxic soils. However, it is also toxic to most crop species and is rarely applied as a sole nitrogen source. The ammonium (more obscurely: aminium) cation is a positively charged polyatomic cation with the chemical formula NH4+. It is formed by the protonation of ammonia (NH3). Ammonium is also a general name for positively charged or protonated substituted amines and quaternary ammonium cations (NR4+), where one or more hydrogen atoms are replaced by organic radical groups (indicated by R). Ammonium is found to be associated with N-acetylglutamate synthetase deficiency, which is an inborn error of metabolism.
Hydrogen Ion
Hydrogen ion, also known as proton or h+, is a member of the class of compounds known as other non-metal hydrides. Other non-metal hydrides are inorganic compounds in which the heaviest atom bonded to a hydrogen atom is belongs to the class of other non-metals. Hydrogen ion can be found in a number of food items such as lowbush blueberry, groundcherry, parsley, and tarragon, which makes hydrogen ion a potential biomarker for the consumption of these food products. Hydrogen ion exists in all living organisms, ranging from bacteria to humans. In humans, hydrogen ion is involved in several metabolic pathways, some of which include cardiolipin biosynthesis cl(i-13:0/a-25:0/a-21:0/i-15:0), cardiolipin biosynthesis cl(a-13:0/a-17:0/i-13:0/a-25:0), cardiolipin biosynthesis cl(i-12:0/i-13:0/a-17:0/a-15:0), and cardiolipin biosynthesis CL(16:1(9Z)/22:5(4Z,7Z,10Z,13Z,16Z)/18:1(11Z)/22:5(7Z,10Z,13Z,16Z,19Z)). Hydrogen ion is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis TG(20:3(8Z,11Z,14Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)), de novo triacylglycerol biosynthesis TG(18:2(9Z,12Z)/20:0/20:4(5Z,8Z,11Z,14Z)), de novo triacylglycerol biosynthesis TG(18:4(6Z,9Z,12Z,15Z)/18:3(9Z,12Z,15Z)/18:4(6Z,9Z,12Z,15Z)), and de novo triacylglycerol biosynthesis TG(24:0/20:5(5Z,8Z,11Z,14Z,17Z)/24:0). A hydrogen ion is created when a hydrogen atom loses or gains an electron. A positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space. Due to its extremely high charge density of approximately 2×1010 times that of a sodium ion, the bare hydrogen ion cannot exist freely in solution as it readily hydrates, i.e., bonds quickly. The hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions . Hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions. Under aqueous conditions found in biochemistry, hydrogen ions exist as the hydrated form hydronium, H3O+, but these are often still referred to as hydrogen ions or even protons by biochemists. [Wikipedia])
D-Mannose
D-Mannose in its six-membered ring form. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS D-Mannose is a carbohydrate, which plays an important role in human metabolism, especially in the glycosylation of specific proteins. D-Mannose is a carbohydrate, which plays an important role in human metabolism, especially in the glycosylation of specific proteins.
N-Acetyl-D-galactosamine
The D-enantiomer of N-acetylgalactosamine. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS D-N-Acetylgalactosamine is an endogenous metabolite.
DL-Xylose
DL-Xylose is an intermediate of organic synthesis. DL-Xylose is an intermediate of organic synthesis. D-(+)-xylose (Xylose) is a natural compound that is catalyzed by xylose isomerase to form xylulose, which is a key step in the anaerobic ethanol fermentation of xylose. D-(+)-xylose (Xylose) is a natural compound that is catalyzed by xylose isomerase to form xylulose, which is a key step in the anaerobic ethanol fermentation of xylose.
beta-1,4-Mannosyl-N-acetylglucosamine
C14H25NO11 (383.14275399999997)
beta-1,4-Mannosyl-N-acetylglucosamine, also known as 4-O-beta-D-Mannopyranosyl-N-acetyl-D-glucosamine or Man(β1-4)GlcNAc, is an intermediate in aminosugar metabolism. It is a substrate of lysosomal beta-mannosidase.
N-Acetylglucosamine
COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS N-Acetyl-D-Glucosamine (N-Acetyl-2-amino-2-deoxy-D-glucose) is a monosaccharide derivative of glucose.
Nicotinamide adenine dinucleotide
C21H26N7O14P2- (662.1012936000001)
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Coenzyme II
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Pyruvate
A 2-oxo monocarboxylic acid anion that is the conjugate base of pyruvic acid, arising from deprotonation of the carboxy group.
Oxalacetate
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Phosphonatoenolpyruvate
C3H2O6P-3 (164.95890219999998)
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6-phosphonatooxy-D-gluconate
C6H10O10P-3 (273.00115900000003)
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Uridine-diphosphate
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[Hydroxy(oxido)phosphoryl] phosphate
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alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc
[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl] phosphate
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Glycerone phosphate(2-)
C3H5O6P-2 (167.98237600000002)
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beta-NADH
C21H27N7O14P2-2 (663.1091182000001)
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Adenosine-diphosphate
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UDP-alpha-D-glucuronate(3-)
C15H19N2O18P2-3 (577.0108114000001)
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3-phosphonato-D-glycerate(3-)
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beta-D-fructofuranose 1,6-bisphosphate(4-)
C6H10O12P2-4 (335.96475200000003)
D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents D007155 - Immunologic Factors D020011 - Protective Agents
D-Glycerate
A glycerate that is the conjugate base of D-glyceric acid, obtained by deprotonation of the carboxy group.
D-glyceraldehyde 3-phosphate(2-)
C3H5O6P-2 (167.98237600000002)
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5-Adenylyl sulfate(2-)
C10H12N5O10PS-2 (425.00425020000006)
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D-Glucopyranose 1-phosphate
C6H11O9P-2 (258.01406860000003)
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Uridine diphosphate N-acetylgalactosamine
C17H25N3O17P2-2 (605.0659180000001)
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beta-D-fructofuranose 6-phosphate(2-)
C6H11O9P-2 (258.01406860000003)
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3-phosphonato-D-glyceroyl phosphate(4-)
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D-erythrose 4-phosphate(2-)
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beta-D-Galp-(1->4)-beta-D-GlcpNAc6S-(1->3)-D-Galp
C20H35NO19S (625.1523920000001)
An amino trisaccharide comprised of an N-acetylated glucosamine residue, sulfated on O-6, between two galactosyl residues. It is an intermediate in the keratan sulfate degradation pathway.
beta-D-Galp6S-(1->4)-beta-D-GlcpNAc6S-(1->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc6S-(1->3)-D-Galp
An amino pentasaccharide comprised of two N-acetylated glucosamine residues sulfated on O-6, and three galactosyl residues, one of which (at the non-reducing end) is sulfated on O-6 while another of which is at the reducing end. It is an intermediate in the keratan sulfate degradation pathway.