Gene Association: GK

UniProt Search: GK (PROTEIN_CODING)
Function Description: glycerol kinase

found 65 associated metabolites with current gene based on the text mining result from the pubmed database.

Gluconic acid

(2R,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanoic acid

C6H12O7 (196.0583)


Gluconic acid, also known as D-gluconic acid, D-gluconate or (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoic acid (also named dextronic acid), is the C1-oxidized form of D-glucose where the aldehyde group has become oxidized to the corresponding carboxylic acid. Gluconic acid 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. In aqueous solution, gluconic acid exists in equilibrium with the cyclic ester glucono delta-lactone. Gluconic acid occurs naturally in fruit, honey, kombucha tea and wine. The salts of gluconic acid are known as "gluconates". Gluconic acid, gluconate salts, and gluconate esters occur widely in nature because such species arise from the oxidation of glucose. Gluconic acid exists in all living species, ranging from bacteria to plants to humans. The metabolism of gluconate is well characterized in prokaryotes where it is known to be degraded following phosphorylation by gluconokinase. Glucokinase activity has also been detected in mammals, including humans (PMID: 24896608). Gluconic acid is produced in the gluconate shunt pathway. In the gluconate shunt, glucose is oxidized by glucose dehydrogenase (also called glucose oxidase) to furnish gluconate, the form in which D-gluconic acid is present at physiological pH. Subsequently, gluconate is phosphorylated by the action of gluconate kinase to produce 6-phosphogluconate, which is the second intermediate of the pentose phosphate pathway. This gluconate shunt is mainly found in plants, algae, cyanobacteria and some bacteria, which all use the Entner–Doudoroff pathway to degrade glucose or gluconate; this generates 2-keto-3-deoxygluconate-6-phosphate, which is then cleaved to generate pyruvate and glyceraldehyde 3-phosphate. Glucose dehydrogenase and gluconate kinase activities are also present in mammals, fission yeast, and flies. Gluconic acid has many industrial uses. It is used as a drug as part of electrolyte supplementation in total parenteral nutrition. It is also used in cleaning products where it helps cleaning up mineral deposits. Gluconic acid or Gluconic acid is used to maintain the cation-anion balance on electrolyte solutions. In humans, gluconic acid is involved in the metabolic disorder called the transaldolase deficiency. Gluconic acid has been found to be a metabolite in Aspergillus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987). [Spectral] D-Gluconic acid (exact mass = 196.0583) and Guanine (exact mass = 151.04941) 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. Dietary supplement, acidity regulator approved in Japan. Component of bottle rinsing formulations Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID G031

   

Phosphoenolpyruvic acid

Phosphoenolpyruvic Acid Trisodium Salt monohydrate

C3H5O6P (167.9824)


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

   

Glycerol 3-phosphate

alpha-Glycerophosphoric acid, 1,2,3-propanetriol-1-(18)O,3-(dihydrogen phosphate)-labeled

C3H9O6P (172.0137)


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

   

Erythritol

1,2,3,4-Butanetetrol,(2R,3R)-rel-

C4H10O4 (122.0579)


Erythritol is a sugar alcohol (or polyol), used as a food additive and sugar substitute. It is naturally occurring and is made from corn using enzymes and fermentation. Its formula is C4H10O4, or HO(CH2)(CHOH)2(CH2)OH; specifically, one particular stereoisomer with that formula. Erythritol is 60–70\\\\\% as sweet as sucrose (table sugar), yet it is almost noncaloric and does not affect blood sugar or cause tooth decay. Erythritol occurs widely in nature and has been found to occur naturally in several foods including wine, sake, beer, watermelon, pear, grape, and soy sauce. Evidence indicates that erythritol also exists endogenously in the tissues and body fluids of humans and animals. Erythritol is absorbed from the proximal intestine by passive diffusion in a manner similar to that of many low molecular weight organic molecules which do not have associated active transport systems. The rate of absorption is related to their molecular size. It passes through the intestinal membranes at a faster rate than larger molecules such as mannitol or glucose. In diabetics, erythritol has also been shown to be rapidly absorbed and excreted unchanged in the urine. Following absorption, ingested erythritol is rapidly distributed throughout the body and has been reported to occur in hepatocytes, pancreatic cells, and vascular smooth muscle cells. Erythritol also has been reported to cross the human placenta and to pass slowly from the plasma into the brain and cerebrospinal fluid (PMID:9862657). Erythritol is found to be associated with ribose-5-phosphate isomerase deficiency, which is an inborn error of metabolism. Bulk sweetener with good taste props. Not metabolised, excreted unchanged in urine. Less sweet than sucrose. Use not yet permitted in most countries (1997). GRAS status for use as a sweetener, thickener, stabiliser, humectant, etc. in food meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1]. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1].

   

Mannitol 1-phosphate

{[(2R,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl]oxy}phosphonic acid

C6H15O9P (262.0454)


Mannitol-1-phosphate is a sugar alcohol. Mannitol-1-phosphate dehydrogenase, (EC 1.1.1.17) reduces fructose 6-phosphate into mannitol 1-phosphate, in the mannitol cycle of organisms such as Lactobacillus plantarum, a lactic acid bacterium found in many fermented food products and in the gastrointestinal tract of mammals. Mannitol-1-phosphate is also produced in many organisms that have a range of biological interactions with humans: parasitic, mutualism, or commensalism (Examples. A. niger; A. parasiticus; B. subtilis; C. difficile; E. faecalis; E. coli; K. pneumoniae; L. salivarius; M. hyopneumoniae; M. mycoides; M. pneumoniae; P. multocida; S. typhi; S. typhimurium; S. aureus; S. pneumoniae; V. cholerae; V. parahaemolyticus; Y. pestis). [HMDB] Mannitol 1-phosphate is a sugar alcohol. Mannitol 1-phosphate dehydrogenase (EC 1.1.1.17) reduces fructose 6-phosphate into mannitol 1-phosphate in the gastrointestinal tract of mammals and the mannitol cycle of organisms such as Lactobacillus plantarum, a lactic acid bacterium found in many fermented food products. Mannitol 1-phosphate is also produced in many organisms that have a range of biological interactions with humans (e.g. A. niger, A. parasiticus, B. subtilis, C. difficile, E. faecalis, E. coli, K. pneumoniae, L. salivarius, M. hyopneumoniae, M. mycoides, M. pneumoniae, P. multocida, S. typhi, S. typhimurium, S. aureus, S. pneumoniae, V. cholerae, V. parahaemolyticus, Y. pestis). KEIO_ID M011

   

Citrinin

(3R-trans)-4,6-Dihydro-8-hydroxy-3,4,5-trimethyl-6-oxo-3H-2-benzopyran-7-carboxylic acid

C13H14O5 (250.0841)


Citrinin is a mycotoxin originally isolated from Penicillium citrinum. It has since been found to be produced by a variety of other fungi which are found or used in the production of human foods, such as grain, cheese, sake and red pigments. Citrinin has also been found in commercial red yeast rice supplements, and also in Aspergillus niveus and Aspergillus terreus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987). D000890 - Anti-Infective Agents > D000900 - Anti-Bacterial Agents D009676 - Noxae > D011042 - Poisons > D009183 - Mycotoxins Citrinin is a mycotoxin which causes contamination in the food and is associated with different toxic effects. Citrinin is usually found together with another nephrotoxic mycotoxin, Ochratoxin A. Citrinin is also reported to possess a broad spectrum of bioactivities, including antibacterial, antifungal, and potential anticancer and neuro-protective effects in vitro[1][2].

   

Pyroglutamic acid

(S)-(-)-gamma-Butyrolactam-gamma-carboxylic acid

C5H7NO3 (129.0426)


Pyroglutamic acid (5-oxoproline) is a cyclized derivative of L-glutamic acid. It is an uncommon amino acid derivative in which the free amino group of glutamic acid cyclizes to form a lactam. It is formed nonenzymatically from glutamate, glutamine, and gamma-glutamylated peptides, but it can also be produced by the action of gamma-glutamylcyclotransferase on an L-amino acid. Elevated blood levels may be associated with problems of glutamine or glutathione metabolism. This compound is found in substantial amounts in brain tissue and other tissues in bound form, especially skin. It is also present in plant tissues. It is sold, over the counter, as a "smart drug" for improving blood circulation in the brain. Pyroglutamate in the urine is a biomarker for the consumption of cheese. When present in sufficiently high levels, pyroglutamic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of pyroglutamic acid are associated with at least five inborn errors of metabolism including 5-oxoprolinuria, 5-oxoprolinase deficiency, glutathione synthetase deficiency, hawkinsinuria, and propionic acidemia. Pyroglutamic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic 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 the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. It has been shown that pyroglutamic acid releases GABA from the cerebral cortex and displays anti-anxiety effects in a simple approach-avoidance conflict situation in the rat. In clinical pharmacology experiments, pyroglutamic acid significantly shortens the plasma half-life of ethanol during acute intoxication. Found in vegetables, fruits and molasses. A cyclized derivative of L-glutamic acid. It is an uncommon amino acid derivative in which the free amino group of glutamic acid cyclizes to form a lactam. Pyroglutamate in the urine is a biomarker for the consumption of cheese C78276 - Agent Affecting Digestive System or Metabolism > C29703 - Antilipidemic Agent

   

Salicylhydroxamic acid

2-Hydroxybenzohydroxamic acid

C7H7NO3 (153.0426)


D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents D000890 - Anti-Infective Agents > D000935 - Antifungal Agents COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

Phosphoserine

(S)-2-Amino-3-hydroxypropanoic acid 3-phosphoric acid

C3H8NO6P (185.0089)


The phosphoric acid ester of serine. As a constituent (residue) of proteins, its side chain can undergo O-linked glycosylation. This might be important in explaining some of the devastating consequences of diabetes. It is one of three amino acid residues that are commonly phosphorylated by kinases during cell signalling in eukaryotes. Phosphorylated serine residues are often referred to as phosphoserine. Serine proteases are a common type of protease. Serine, organic compound, one of the 20 amino acids commonly found in animal proteins. Only the L-stereoisomer appears in mammalian protein. It is not essential to the human diet, since it can be synthesized in the body from other metabolites, including glycine. Serine was first obtained from silk protein, a particularly rich source, in 1865. Its name is derived from the Latin for silk, sericum. Serines structure was established in 1902. [HMDB] Phosphoserine is the phosphoric acid ester of the amino acid serine. It is found in essentially all living organisms ranging from microbes to plants to mammals. Phosphoserine is a component of many proteins as the result of posttranslational modifications to the native protein’s serine residue(s). The phosphorylation of the hydroxyl functional group in serine to produce phosphoserine is catalyzed by various types of kinases. Serine is one of three amino acid residues that are commonly phosphorylated by kinases during cell signalling in eukaryotes. Free phosphoserine is found in many biofluids and likely arises from the proteolysis of proteins containing phosphoserine residues (PMID: 7693088). Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID P060 DL-O-Phosphoserine, a normal metabolite in human biofluid, is an ester of serine and phosphoric acid.

   

Hydroxypropionic acid

beta-Hydroxypropionic acid

C3H6O3 (90.0317)


3-Hydroxypropionic acid is a carboxylic acid. It is an intermediate in the breakdown of branched-chain amino acids and propionic acid from the gut. Typically it originates from propionyl-CoA and a defect in the enzyme propionyl carboxylase. This leads to a buildup in propionyl-CoA in the mitochondria.  Such a buildup can lead to a disruption of the esterified CoA:free CoA ratio and ultimately to mitochondrial toxicity. Detoxification of these metabolic end products occurs via the transfer of the propionyl moiety to carnitine-forming propionyl-carnitine, which is then transferred across the inner mitochondrial membrane. 3-Hydroxypropionic acid is then released as the free acid. As an industrial chemical, it is used in the production of various chemicals such as acrylates in industry. When present in sufficiently high levels, 3-hydroxypropionic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of hydroxypropionic acid are associated with many inborn errors of metabolism including biotinidase deficiency, malonic aciduria, methylmalonate semialdehyde dehydrogenase deficiency, methylmalonic aciduria, methylmalonic aciduria due to cobalamin-related disorders, and propionic acidemia. Hydroxypropionic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. Infants with acidosis have symptoms that 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 the IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. 3-Hydroxypropionic acid is also a microbial metabolite found in Escherichia, Klebsiella and Saccharomyces (PMID: 26360870).

   

Dihydroxyacetone phosphate

1,3-Dihydroxy-2-propanone monodihydrogen phosphoric acid

C3H7O6P (169.998)


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

   

Fructose 1,6-bisphosphate

D-fructofuranose 1,6-bisphosphate

C6H14O12P2 (339.9961)


D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents C - Cardiovascular system > C01 - Cardiac therapy D007155 - Immunologic Factors D020011 - Protective Agents KEIO_ID F008

   

Glyceraldehyde

(2R)-2,3-dihydroxypropanal

C3H6O3 (90.0317)


DL-Glyceraldehyde is a monosaccharide. DL-Glyceraldehyde is the simplest aldose. DL-Glyceraldehyde can be used for various biochemical studies[1].

   

Glycerol

propane-1,2,3-triol

C3H8O3 (92.0473)


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).

   

Melibiose

(2S,3R,4S,5S,6R)-6-({[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxane-2,3,4,5-tetrol

C12H22O11 (342.1162)


Melibiose (CAS: 585-99-9) is a disaccharide consisting of one galactose and one glucose moiety in an alpha (1-6) glycosidic linkage. This sugar is produced and metabolized only by enteric and lactic acid bacteria and other microbes, such as Dickeya dadantii, Escherichia, Leuconostoc, and Saccharomyces (PMID: 19734309, 28453942). It is not an endogenous metabolite but may be obtained from the consumption of partially fermented molasses, brown sugar, or honey. Antibodies to melibiose will appear in individuals affected by Chagas disease (Trypanosoma cruzi infection). Melibiose is not metabolized by humans but can be broken down by gut microflora, such as E. coli. In fact, E. coli is able to utilize melibiose as a sole source of carbon. Melibiose is first imported by the melibiose permease, MelB and then converted into β-D-glucose and β-D-galactose by the α-galactosidase encoded by melA. Because of its poor digestibility, melibiose (along with rhamnose) can be used together for noninvasive intestinal mucosa barrier testing. This test can be used to assess malabsorption or impairment of intestinal permeability. Recent studies with dietary melibiose have shown that it can strongly affect the Th cell responses to an ingested antigen. It has been suggested that melibiose could be used to enhance the induction of oral tolerance (PMID: 17986780). Isomaltose is composed of two glucose units and suitable as a non-cariogenic sucrose replacement and is favorable in products for diabetics and prediabetic dispositions. Isomaltose is composed of two glucose units and suitable as a non-cariogenic sucrose replacement and is favorable in products for diabetics and prediabetic dispositions.

   

6-Phosphogluconic acid

(2R,3S,4R,5R)-2,3,4,5-tetrahydroxy-6-(phosphonooxy)hexanoic acid

C6H13O10P (276.0246)


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

[(2R)-2-hydroxy-3-oxopropoxy]phosphonic acid

C3H7O6P (169.998)


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.

   

Pyruvaldehyde

alpha-Ketopropionaldehyde

C3H4O2 (72.0211)


Methylglyoxal, also known as 2-ketopropionaldehyde or 2-oxopropanal, is a member of the class of compounds known as alpha ketoaldehydes. Alpha ketoaldehydes are organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon. Methylglyoxal is soluble (in water) and an extremely weak acidic compound (based on its pKa). Methylglyoxal can be found in a number of food items such as shiitake, yellow zucchini, roman camomile, and carob, which makes methylglyoxal a potential biomarker for the consumption of these food products. Methylglyoxal can be found primarily in blood and urine, as well as throughout most human tissues. Methylglyoxal exists in all living species, ranging from bacteria to humans. In humans, methylglyoxal is involved in few metabolic pathways, which include glycine and serine metabolism, pyruvaldehyde degradation, pyruvate metabolism, and spermidine and spermine biosynthesis. Methylglyoxal is also involved in several metabolic disorders, some of which include hyperglycinemia, non-ketotic, pyruvate kinase deficiency, non ketotic hyperglycinemia, and pyruvate decarboxylase E1 component deficiency (PDHE1 deficiency). Moreover, methylglyoxal is found to be associated with diabetes mellitus type 2. Methylglyoxal, also called pyruvaldehyde or 2-oxopropanal, is the organic compound with the formula CH3C(O)CHO. Gaseous methylglyoxal has two carbonyl groups, an aldehyde and a ketone but in the presence of water, it exists as hydrates and oligomers. It is a reduced derivative of pyruvic acid . Pyruvaldehyde is an organic compound used often as a reagent in organic synthesis, as a flavoring agent, and in tanning. It has been demonstrated as an intermediate in the metabolism of acetone and its derivatives in isolated cell preparations, in various culture media, and in vivo in certain animals.

   

Dihydroxyacetone

Summers brand OF dihydroxyacetone

C3H6O3 (90.0317)


Dihydroxyacetone, also known as 1,3-dihydroxy-2-propanone or glycerone, is a member of the class of compounds known as monosaccharides. Monosaccharides are compounds containing one carbohydrate unit not glycosidically linked to another such unit, and no set of two or more glycosidically linked carbohydrate units. Monosaccharides have the general formula CnH2nOn. Dihydroxyacetone is soluble (in water) and a very weakly acidic compound (based on its pKa). Dihydroxyacetone can be found in a number of food items such as cauliflower, green bell pepper, black cabbage, and sweet basil, which makes dihydroxyacetone a potential biomarker for the consumption of these food products. Dihydroxyacetone can be found primarily in urine, as well as in human muscle and stratum corneum tissues. Dihydroxyacetone exists in all living species, ranging from bacteria to humans. Dihydroxyacetone is primarily used as an ingredient in sunless tanning products. It is often derived from plant sources such as sugar beets and sugar cane, and by the fermentation of glycerin . Dihydroxyacetone (also known as DHA) is a ketotriose compound. Its addition to blood preservation solutions results in better maintenance of 2,3-diphosphoglycerate levels during storage. It is readily phosphorylated to dihydroxyacetone phosphate by triokinase in erythrocytes. In combination with naphthoquinones, it acts as a sunscreening agent. Dihydroxyacetone is the simplest of all ketoses and, having no chiral centre, is the only one that has no optical activity. Dihydroxyacetone is a simple non-toxic sugar. It is often derived from plant sources such as sugar beets and sugar cane, by the fermentation of glycerin. Dihydroxyacetone is a white crystalline powder which is water soluble. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

CDP-glycerol

[({[(2R,3S,4R,5R)-3,4-dihydroxy-5-(2-hydroxy-4-imino-1,4-dihydropyrimidin-1-yl)oxolan-2-yl]methoxy}(hydroxy)phosphoryl)oxy](2,3-dihydroxypropoxy)phosphinic acid

C12H21N3O13P2 (477.055)


Cdp-glycerol is a member of the class of compounds known as cdp-glycerols. Cdp-glycerols are glycerolipids with a cytidine diphosphate attached to the oxygen O1 or O2 of the glycerol part. Cdp-glycerol is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Cdp-glycerol can be found in a number of food items such as pummelo, elderberry, mugwort, and american butterfish, which makes cdp-glycerol a potential biomarker for the consumption of these food products. Cdp-glycerol is part of the Purine metabolism, and Glycerophospholipid metabolism pathways. It is a substrate for: Manganese-dependent ADP-ribose/CDP-alcohol diphosphatase.

   

L-Rhamnulose

(2R,3S,4S,5R)-2-(hydroxymethyl)-5-methyloxolane-2,3,4-triol

C6H12O5 (164.0685)


L-Rhamnulose (CAS: 14807-05-7), also known as 6-deoxy-L-fructose, is a breakdown product of L-rhamnose, which is ubiquitous and particularly abundant in some plants, such as buckthorn. Rhamnose is also one of the sugars regularly used to conduct the dual sugar permeability test. Rhamnose is fermented by some colonic bacteria into L-rhamnulose. Three bacterial (gut microflora) enzymes are involved in rhamnose degradation including rhaB (rhamnulose kinase), rhaA (rhamnose isomerase), and rhaD (rhamnulose-1-phosphate aldolase). L-Rhamnulose kinase catalyzes the transfer of the gamma-phosphate group from ATP to the 1-hydroxyl group of L-rhamnulose. L-Rhamnulose has been found in Escherichia (PMID: 4975916). L-Rhamnulose is a breakdown product of L-rhamnose, which is ubiquitous and particularly abundant in some plants, such as buckthorn. Rhamnose is also one of the sugars regularly used to conduct the dual sugar permeability test. Rhamnose is fermented by some colonic bacteria into L-rhamnulose. Three bacterial (gut micrflora) enzymes are involved in Rhamnose degradation including rhaB (rhamulose kinase), rhaA (rhamnose isomerase), and rhaD (rhamnulose-1-phosphate aldolase). L-rhamnulose kinase catalyzes the transfer of the gamma-phosphate group from ATP to the 1-hydroxyl group of L-rhamnulose. [HMDB]

   

3-Hydroxypropanal

3-hydroxypropanal

C3H6O2 (74.0368)


3-Hydroxypropanal is a broad-spectrum antimicrobial substance termed reuterin produced by Lactobacillus reuteri. L. reuteri resides in the gastrointestinal tract of healthy humans and animals, and is believed to. function as a symbiont in the enteric ecosystem. Synthesis of such an antimicrobial substance by an enteric resident raises a number of interesting questions and possibilities as to the role these residents may play in the health of the host. (PMID 3245697). In vivo, glycerol is converted in one enzymatic step into 3-Hydroxypropanal. The 3-Hydroxypropanal -producing Lactobacillus reuteri is used as a probiotic in the health care of humans and animals. 3-Hydroxypropanal forms, together with Hydroxypropanal-hydrate and Hydroxypropanal-dimer, a dynamic, multi-component system (Hydroxypropanal system) used in food preservation, as a precursor for many modern chemicals such as acrolein, acrylic acid, and 1,3-propanediol (1,3-PDO), and for polymer production. 3-Hydroxypropanal can be obtained both through traditional chemistry and bacterial fermentation. To date, 3-HPA has been produced from petrochemical resources as an intermediate in 1,3-PDO production. The biotechnological production of 3-Hydroxypropanal from renewable resources is desirable both for use of 3-Hydroxypropanal in foods and for the production of bulk chemicals. The main challenge will be the efficient production and recovery of pure 3-Hydroxypropanal. (PMID 14669058). 3-Hydroxypropanal is a broad-spectrum antimicrobial substance termed reuterin produced by Lactobacillus reuteri. L. reuteri resides in the gastrointestinal tract of healthy humans and animals, and is believed to Reuterin is a broad-spectrum antimicrobial agent active against Gram positive and Gram negative bacteria, as well as yeasts, moulds and protozoa. Reuterin is produced by specific strains of Lactobacillus reuteri during anaerobic metabolism of glycerol. Reuterin also demonstrates potent antimicrobial activity against a broad panel of human and poultry meat campylobacter spp. Isolates[1][2]. Reuterin. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=2134-29-4 (retrieved 2024-12-12) (CAS RN: 2134-29-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

   

L-Erythrulose

(3S)-1,3,4-Trihydroxybutan-2-one

C4H8O4 (120.0423)


L-Erythrulose is an extremely reactive ketose, which rapidly glycates and crosslinks proteins, and therefore may mediate the(L-ascorbate) AsA-dependent modification of protein (ascorbylation) seen in vitro, and also proposed to occur in vivo in human lens during diabetic and age-onset cataract formation.(PMID: 10727845) [HMDB] L-Erythrulose is an extremely reactive ketose, which rapidly glycates and crosslinks proteins, and therefore may mediate the(L-ascorbate) AsA-dependent modification of protein (ascorbylation) seen in vitro, and also proposed to occur in vivo in human lens during diabetic and age-onset cataract formation.(PMID: 10727845).

   

1,3-PROPANEDIOL

1,3-PROPANEDIOL

C3H8O2 (76.0524)


1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1]. 1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1].

   

Propanoyl phosphate

Propanoyl phosphate

C3H7O5P (154.0031)


The phosphate ester of propanoic acid.

   

Propylene glycol

(R)-2-Hydroxy-1-propanol

C3H8O2 (76.0524)


Propylene glycol (CAS: 57-55-6), also known as 1,2-propanediol, is an organic compound (a diol alcohol), usually a tasteless, odourless, and colourless clear oily liquid that is hygroscopic and miscible with water, acetone, and chloroform. It is manufactured by the hydration of propylene oxide. Propylene glycol is used as a solvent for intravenous, oral, and topical pharmaceutical preparations It is generally considered safe. However, in large doses, it can be toxic, especially if given over a short period of time. Intravenous lorazepam contains the largest amount of propylene glycol of commonly used drugs. In adults with normal liver and kidney function, the terminal half-life of propylene glycol ranges from 1.4 to 3.3 hours. Propylene glycol is metabolized by the liver to form lactate, acetate, and pyruvate. The nonmetabolized drug is excreted in the urine mainly as the glucuronide conjugate, approximately 12 to 45 percent is excreted unchanged in urine. Renal clearance decreases as the dose administered increases (390 ml/minute/173 m2 at a dose of 5 g/day but only 144 ml/minute/173 m2 at a dose of 21 g/day). These data suggest that renal clearance declines at higher propylene glycol doses because of the saturation of proximal tubular secretion of the drug. As an acceptable level of propylene glycol has not been defined, the clinical implication of a propylene glycol level is unclear. The World Health Organization (WHO) recommends a maximum consumption of 25 mg/kg/day (1.8 g/day for a 75 kg male) of propylene glycol when used as a food additive, but this limit does not address its use as a drug solvent. No maximum dose is recommended in the literature for intravenous therapy with propylene glycol. Intoxication occurs at much higher doses than the WHO dose limit and is exclusive to pharmacologic exposure. Propylene glycol toxicity includes the development of serum hyperosmolality, lactic acidosis, and kidney failure. It has been suggested that proximal tubular necrosis is the cause of acute kidney injury from propylene glycol. Along these lines, proximal tubular cell injury occurs in cultured human cells exposed to propylene glycol. Acute tubular necrosis was described with propylene glycol toxicity in a case of concomitant administration of intravenous lorazepam and trimethoprim sulfamethoxazole. Propylene glycol induced intoxication can also mimic sepsis or systemic inflammatory response syndrome (SIRS). Patients suspected of having sepsis with negative cultures should be evaluated for propylene glycol toxicity if they have been exposed to high dose lorazepam or other medications containing this solvent (PMID:17555487). Propylene glycol is an anticaking agent, antioxidant, dough strengthener, emulsifier, flavouring agent, formulation aid, humectant, solvent, preservative, stabiliser, hog/poultry scald agent, and surface active agent. It is found in foods such as roasted sesame seeds, oats, truffle and other mushrooms. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].

   

Hydroxyacetone

Hydroxymethyl methyl ketone

C3H6O2 (74.0368)


Hydroxyacetone, also known as acetol or acetone alcohol, belongs to the class of organic compounds known as alpha-hydroxy ketones. These are organic compounds containing a carboxylic acid, and an amine group attached to the alpha carbon atom, relative to the C=O group. Hydroxyacetone exists in all living organisms, ranging from bacteria to humans. Hydroxyacetone is a sweet, caramel, and ethereal tasting compound. hydroxyacetone has been detected, but not quantified in several different foods, such as bog bilberries, cardoons, amaranths, black salsifies, and komatsuna. This could make hydroxyacetone a potential biomarker for the consumption of these foods. Hydroxyacetone is an intermediate in glycine, serine, and threonine metabolism. Present in beer, tobacco and honey Hydroxyacetone is an endogenous metabolite. Hydroxyacetone is an endogenous metabolite.

   

Chloroacetic acid

Monochloracetic acidacide monochloracetique

C2H3ClO2 (93.9822)


Prohibited from use in food Chloroacetic acid is the chemical compound with the formula ClCH2CO2H. This carboxylic acid is a useful building block in organic synthesis. Like other chloroacetic acids and related halocarbons, it is a potentially dangerous alkylating agent

   

Glyceraldehyde

alpha,beta-Dihydroxypropionaldehyde

C3H6O3 (90.0317)


Glyceraldehyde is a triose monosaccharide with chemical formula C3H6O3. It is the simplest of all common aldoses. It is a sweet, colourless crystalline solid that is an intermediate compound in carbohydrate metabolism. The word "glyceraldehyde" comes from combining glycerine and aldehyde, as glyceraldehyde is merely glycerine with one hydroxide changed to an aldehyde. Glyceraldehyde is produced from the action of the enzyme glyceraldehyde dehydrogenase, which converts glycerol to glyceraldehyde using NADP as a cofactor. When present at sufficiently high levels, glyceraldehyde can be a cytotoxin and a mutagen. A cytotoxin is a compound that kills cells. A mutagen is a compound that causes mutations in DNA. Glyceraldehyde is a highly reactive compound that can modify and cross-link proteins. Glyceraldehyde-modified proteins appear to be cytotoxic, depress intracellular glutathione levels, and induce reactive oxygen species (ROS) production (PMID:14981296). Glyceraldehyde has been shown to cause chromosome damage to human cells in culture and is mutagenic in the Ames bacterial test. Glyceraldehyde is a triose monosaccharide with chemical formula C3H6O3. It is the simplest of all common aldoses. It is a sweet colorless crystalline solid that is an intermediate compound in carbohydrate metabolism. The word comes from combining glycerine and aldehyde, as glyceraldehyde is merely glycerine with one hydroxide changed to an aldehyde. [HMDB] DL-Glyceraldehyde is a monosaccharide. DL-Glyceraldehyde is the simplest aldose. DL-Glyceraldehyde can be used for various biochemical studies[1].

   

Glycerophosphoric acid

alpha-Glycerophosphoric acid, 1,2,3-propanetriol-1-(18)O,3-(dihydrogen phosphate)-labeled

C3H9O6P (172.0137)


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 brain and skeletal muscle cells of mammals (wikipedia). [HMDB]

   

propylene glycol

(R)-(-)-1,2-Propanediol

C3H8O2 (76.0524)


D010592 - Pharmaceutic Aids > D014677 - Pharmaceutical Vehicles D012997 - Solvents (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1]. (R)-(-)-1,2-Propanediol is a (R)-enantiomer of 1,2-Propanediol that produced from glucose in Escherichia coli expressing NADH-linked glycerol dehydrogenase genes[1].

   

Melibiose

6-O-(alpha-D-Galactopyranosyl)-D-glucopyranose

C12H22O11 (342.1162)


A glycosylglucose formed by an alpha-(1->6)-linkage between D-galactose and D-glucose. relative retention time with respect to 9-anthracene Carboxylic Acid is 0.053 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.051 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.050 COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS D-Melibiose is a disaccharide which is composed of one galactose and one glucose moiety in an alpha (1-6) glycosidic linkage. D-Melibiose is a disaccharide which is composed of one galactose and one glucose moiety in an alpha (1-6) glycosidic linkage. Isomaltose is composed of two glucose units and suitable as a non-cariogenic sucrose replacement and is favorable in products for diabetics and prediabetic dispositions. Isomaltose is composed of two glucose units and suitable as a non-cariogenic sucrose replacement and is favorable in products for diabetics and prediabetic dispositions.

   

3-phosphoglyceraldehyde

DL-Glyceraldehyde 3-phosphate

C3H7O6P (169.998)


   

DL-O-Phosphoserine

DL-Serine, dihydrogen phosphoric acid (ester)

C3H8NO6P (185.0089)


DL-O-Phosphoserine, also known as DL-O-phosphorylserine or DL-O-serine phosphate, belongs to the class of organic compounds known as alpha amino acids. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Serine proteases are a common type of protease. DL-O-Phosphoserine exists in all living species, ranging from bacteria to humans. Serine is one of three amino acid residues that are commonly phosphorylated by kinases during cell signalling in eukaryotes. It is a normal metabolite found in human biofluids. (PMID 7693088, 7688003) DL-O-Phosphoserine, a normal metabolite in human biofluid, is an ester of serine and phosphoric acid.

   

8-Hydroxy-3,4,5-trimethyl-6-oxo-4,6-dihydro-3H-isochromene-7-carboxylic acid

6-hydroxy-3,4,5-trimethyl-8-oxo-4,8-dihydro-3H-2-benzopyran-7-carboxylic acid

C13H14O5 (250.0841)


   

gluconic acid

D-gluconic acid

C6H12O7 (196.0583)


   

6-Phosphogluconic acid

6-Phosphogluconic acid

C6H13O10P (276.0246)


   

Dihydroxyacetone

1,3-Dihydroxyacetone

C3H6O3 (90.0317)


A ketotriose consisting of acetone bearing hydroxy substituents at positions 1 and 3. The simplest member of the class of ketoses and the parent of the class of glycerones. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

Harden-Young ester

1,6-Di-O-phosphono-beta-D-fructofuranose

C6H14O12P2 (339.9961)


D002491 - Central Nervous System Agents > D018696 - Neuroprotective Agents D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents C - Cardiovascular system > C01 - Cardiac therapy D007155 - Immunologic Factors D020011 - Protective Agents The furanose form of D-fructose 1,6-bisphosphate. A D-fructofuranose 1,6-bisphosphate with a beta-configuration at the anomeric position.

   

Glyceraldehyde

DL-Glyceric aldehyde

C3H6O3 (90.0317)


An aldotriose comprising propanal having hydroxy groups at the 2- and 3-positions. It plays role in the formation of advanced glycation end-products (AGEs), a deleterious accompaniment to ageing. DL-Glyceraldehyde is a monosaccharide. DL-Glyceraldehyde is the simplest aldose. DL-Glyceraldehyde can be used for various biochemical studies[1].

   

Glycerophosphoric acid

Glycerophosphoric acid

C3H9O6P (172.0137)


   

Hydroxypropionic acid

3-Hydroxypropionic acid

C3H6O3 (90.0317)


A 3-hydroxy monocarboxylic acid that is propionic acid in which one of the hydrogens attached to the terminal carbon is replaced by a hydroxy group. Hydroxypropionic acid, also known as 3-hydroxypropionate or hydracrylic acid, belongs to beta hydroxy acids and derivatives class of compounds. Those are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom. Hydroxypropionic acid is soluble (in water) and a weakly acidic compound (based on its pKa). Hydroxypropionic acid can be synthesized from propionic acid. Hydroxypropionic acid is also a parent compound for other transformation products, including but not limited to, beta-propiolactone, ascr#5, and 3-hydroxypropanoyl-CoA. Hydroxypropionic acid can be found in a number of food items such as apple, poppy, yam, and cupuaçu, which makes hydroxypropionic acid a potential biomarker for the consumption of these food products. Hydroxypropionic acid can be found primarily in blood, cerebrospinal fluid (CSF), feces, and urine. Hydroxypropionic acid exists in all living organisms, ranging from bacteria to humans. In humans, hydroxypropionic acid is involved in the propanoate metabolism. Hydroxypropionic acid is also involved in few metabolic disorders, which include malonic aciduria, malonyl-coa decarboxylase deficiency, and methylmalonic aciduria due to cobalamin-related disorders. Moreover, hydroxypropionic acid is found to be associated with biotinidase deficiency and propionic acidemia. Hydroxypropionic acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Hydroxypropanoic acid, or alternately hydroxypropionic acid, may refer to either of two isomeric chemical compounds: 3-Hydroxypropionic acid (hydracrylic acid) Lactic acid (2-hydroxypropanoic acid) . Chronically high levels of hydroxypropionic acid are associated with at least 5 inborn errors of metabolism including: Biotinidase deficiency, Malonic Aciduria, Methylmalonate Semialdehyde Dehydrogenase Deficiency, Methylmalonic Aciduria, Methylmalonic, Aciduria Due to Cobalamin-Related Disorders and Propionic acidemia (T3DB).

   

DIHYDROXYACETONE PHOSPHATE

DIHYDROXYACETONE PHOSPHATE

C3H7O6P (169.998)


A member of the class of glycerone phosphates that consists of glycerone bearing a single phospho substituent.

   

Erythrit

rel-(2R,3S)-1,2,3,4-Butanetetrol

C4H10O4 (122.0579)


D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents The meso-diastereomer of butane-1,2,3,4-tetrol. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1]. meso-Erythritol is a sugar alcohol that occurs naturally in a variety of foods (e.g., pear, watermelon), is 60-80\% as sweet as sucrose, and is an approved low-calorie sweetener food additive[1].

   

phosphoenolpyruvate

2-dihydroxyphosphinoyloxyacrylic acid

C3H5O6P (167.9824)


   

Salicylhydroxamic acid

Salicylhydroxamic acid

C7H7NO3 (153.0426)


D000890 - Anti-Infective Agents > D000977 - Antiparasitic Agents > D000981 - Antiprotozoal Agents D000890 - Anti-Infective Agents > D000935 - Antifungal Agents COVID info from PDB, Protein Data Bank Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

DL-Pyroglutamic acid

5-Oxopyrrolidine-2-carboxylic acid

C5H7NO3 (129.0426)


DL-Pyroglutamic acid (CAE) as an inactivator of hepatitis B surface, inactivates vaccinia virus, herpes simplex virus, and influenza virus except poliovirus. DL-Pyroglutamic acid is also a possible inhibitor of GABA transaminase, increases GABA amount with antiepileptic action[1][2]. DL-Pyroglutamic acid (CAE) as an inactivator of hepatitis B surface, inactivates vaccinia virus, herpes simplex virus, and influenza virus except poliovirus. DL-Pyroglutamic acid is also a possible inhibitor of GABA transaminase, increases GABA amount with antiepileptic action[1][2].

   

Optim

4-01-00-02751 (Beilstein Handbook Reference)

C3H8O3 (92.0473)


A - Alimentary tract and metabolism > A06 - Drugs for constipation > A06A - Drugs for constipation > A06AG - Enemas C78276 - Agent Affecting Digestive System or Metabolism > C29697 - Laxative D020011 - Protective Agents > D003451 - Cryoprotective Agents D012997 - Solvents

   

Soleal

4-01-00-04119 (Beilstein Handbook Reference)

C3H6O3 (90.0317)


1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1]. 1,3-Dihydroxyacetone (DHA), the main active ingredient in sunless tanning skin-care preparations and an important precursor for the synthesis of various fine chemicals, is produced on an industrial scale by microbial fermentation of glycerol over Gluconobacter oxydans[1].

   

Acetol

4-01-00-03977 (Beilstein Handbook Reference)

C3H6O2 (74.0368)


A propanone that is acetone in which one of the methyl hydrogens is replaced by a hydroxy group. Hydroxyacetone is an endogenous metabolite. Hydroxyacetone is an endogenous metabolite.

   

CHEBI:15978

[(2R)-2,3-dihydroxypropyl] dihydrogen phosphate

C3H9O6P (172.0137)


   

AI3-01851

4-01-00-02493 (Beilstein Handbook Reference)

C3H8O2 (76.0524)


1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1]. 1,3-Propanediol is produced in nature by the fermentation of glycerol in microorganism[1].

   

Glycerin

Glycerin

C3H8O3 (92.0473)


A - Alimentary tract and metabolism > A06 - Drugs for constipation > A06A - Drugs for constipation > A06AG - Enemas C78276 - Agent Affecting Digestive System or Metabolism > C29697 - Laxative D020011 - Protective Agents > D003451 - Cryoprotective Agents D012997 - Solvents

   

chloroacetic acid

chloroacetic acid

C2H3ClO2 (93.9822)


   

methylglyoxal

methylglyoxal

C3H4O2 (72.0211)


A 2-oxo aldehyde derived from propanal.

   

sn-Glycerol 3-phosphate

sn-Glycerol 3-phosphate

C3H9O6P (172.0137)


An sn-glycerol 3-phosphate having unsubstituted hydroxy groups.

   

D-Glyceraldehyde

D-(+)-Glyceraldehyde

C3H6O3 (90.0317)


The D-enantiomer of glyceraldehyde.

   

3-Hydroxypropanal

3-Hydroxypropanal

C3H6O2 (74.0368)


Reuterin is a broad-spectrum antimicrobial agent active against Gram positive and Gram negative bacteria, as well as yeasts, moulds and protozoa. Reuterin is produced by specific strains of Lactobacillus reuteri during anaerobic metabolism of glycerol. Reuterin also demonstrates potent antimicrobial activity against a broad panel of human and poultry meat campylobacter spp. Isolates[1][2].

   

glyceraldehyde-3-phosphate

glyceraldehyde-3-phosphate

C3H7O6P (169.998)


   

D-Mannitol 1-phosphate

D-Mannitol 1-phosphate

C6H15O9P (262.0454)


An alditol 1-phosphate that is the 1-O-phospho derivative of mannitol with D-configuration.

   

L-Rhamnulose

L-Rhamnulose

C6H12O5 (164.0685)


A deoxyketohexose consisting of L-fructose lacking the 6-hydroxy group.

   

Erythrulose

1,3,4-Trihydroxy-2-butanone

C4H8O4 (120.0423)


Erythrulose. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=40031-31-0 (retrieved 2024-08-19) (CAS RN: 40031-31-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

   
   

6-O-alpha-D-Galactopyranosyl-alpha-D-glucopyranose

6-O-alpha-D-Galactopyranosyl-alpha-D-glucopyranose

C12H22O11 (342.1162)