Substance | Relationship Strength | Studies | Trials | Classes | Roles |
alpha-aceto-alpha-hydroxybutyrate alpha-aceto-alpha-hydroxybutyrate: RN given refers to cpd without isomeric designation | 1.96 | 1 | 0 | hydroxy fatty acid | |
alpha-ketoisovalerate alpha-ketoisovalerate: RN given refers to parent cpd. 3-methyl-2-oxobutanoate : A 2-oxo monocarboxylic acid anion that is the conjugate base of 3-methyl-2-oxobutanoic acid, arising from deprotonation of the carboxy group.. 3-methyl-2-oxobutanoic acid : A 2-oxo monocarboxylic acid that is the 2-oxo derivative of isovaleric acid. | 1.98 | 1 | 0 | 2-oxo monocarboxylic acid; branched-chain keto acid | human metabolite; Saccharomyces cerevisiae metabolite |
beta-alanine [no description available] | 4.02 | 4 | 0 | amino acid zwitterion; beta-amino acid | agonist; fundamental metabolite; human metabolite; inhibitor; neurotransmitter |
butyric acid Butyric Acid: A four carbon acid, CH3CH2CH2COOH, with an unpleasant odor that occurs in butter and animal fat as the glycerol ester.. butyrate : A short-chain fatty acid anion that is the conjugate base of butyric acid, obtained by deprotonation of the carboxy group.. butyric acid : A straight-chain saturated fatty acid that is butane in which one of the terminal methyl groups has been oxidised to a carboxy group. | 1.92 | 1 | 0 | fatty acid 4:0; straight-chain saturated fatty acid | human urinary metabolite; Mycoplasma genitalium metabolite |
3-hydroxybutyric acid 3-Hydroxybutyric Acid: BUTYRIC ACID substituted in the beta or 3 position. It is one of the ketone bodies produced in the liver.. 3-hydroxybutyric acid : A straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. | 1.92 | 1 | 0 | (omega-1)-hydroxy fatty acid; 3-hydroxy monocarboxylic acid; hydroxybutyric acid | human metabolite |
glycine [no description available] | 1.98 | 1 | 0 | alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical |
glycerol Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil. | 2.25 | 1 | 0 | alditol; triol | algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent |
thiamine thiamine(1+) : A primary alcohol that is 1,3-thiazol-3-ium substituted by (4-amino-2-methylpyrimidin-5-yl)methyl, methyl and 2-hydroxyethyl groups at positions 3, 4 and 5, respectively. | 3.48 | 2 | 0 | primary alcohol; vitamin B1 | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
alanine Alanine: A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM.. alanine : An alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2. | 7.65 | 3 | 0 | alanine zwitterion; alanine; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid | EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor; fundamental metabolite |
lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 1.96 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid | algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
adenosine monophosphate Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | 2.42 | 2 | 0 | adenosine 5'-phosphate; purine ribonucleoside 5'-monophosphate | adenosine A1 receptor agonist; cofactor; EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.11 (fructose-bisphosphatase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
uridine triphosphate Uridine Triphosphate: Uridine 5'-(tetrahydrogen triphosphate). A uracil nucleotide containing three phosphate groups esterified to the sugar moiety. | 2.07 | 1 | 0 | pyrimidine ribonucleoside 5'-triphosphate; uridine 5'-phosphate | Escherichia coli metabolite; mouse metabolite |
methionine Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. | 1.96 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid; methionine zwitterion; methionine; proteinogenic amino acid | antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical |
cytidine triphosphate Cytidine Triphosphate: Cytidine 5'-(tetrahydrogen triphosphate). A cytosine nucleotide containing three phosphate groups esterified to the sugar moiety. | 2.07 | 1 | 0 | cytidine 5'-phosphate; pyrimidine ribonucleoside 5'-triphosphate | Escherichia coli metabolite; mouse metabolite |
dithionitrobenzoic acid Dithionitrobenzoic Acid: A standard reagent for the determination of reactive sulfhydryl groups by absorbance measurements. It is used primarily for the determination of sulfhydryl and disulfide groups in proteins. The color produced is due to the formation of a thio anion, 3-carboxyl-4-nitrothiophenolate.. dithionitrobenzoic acid : An organic disulfide that results from the formal oxidative dimerisation of 2-nitro-5-thiobenzoic acid. An indicator used to quantify the number or concentration of thiol groups. | 1.95 | 1 | 0 | nitrobenzoic acid; organic disulfide | indicator |
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 1.95 | 1 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
isobutyraldehyde isobutyraldehyde : A member of the class of propanals that is propanal substituted by a methyl group at position 2. | 1.98 | 1 | 0 | 2-methyl-branched fatty aldehyde; propanals | Saccharomyces cerevisiae metabolite |
pantothenic acid Pantothenic Acid: A butyryl-beta-alanine that can also be viewed as pantoic acid complexed with BETA ALANINE. It is incorporated into COENZYME A and protects cells against peroxidative damage by increasing the level of GLUTATHIONE.. pantothenic acid : A member of the class of pantothenic acids that is an amide formed from pantoic acid and beta-alanine.. vitamin B5 : Any member of a group of vitamers that belong to the chemical structural class called pantothenic acids that exhibit biological activity against vitamin B5 deficiency. Deficiency of vitamin B5 is rare due to its widespread distribution in whole grain cereals, legumes and meat. Symptoms associated with vitamin B5 deficiency are difficult to asses since they are subtle and resemble those of other B vitamin deficiencies. The vitamers include (R)-pantothenic acid and its ionized and salt forms.. (R)-pantothenate : A pantothenate that is the conjugate base of (R)-pantothenic acid, obtained by deprotonation of the carboxy group.. (R)-pantothenic acid : A pantothenic acid having R-configuration. | 4.65 | 9 | 0 | pantothenic acid; vitamin B5 | antidote to curare poisoning; geroprotector; human blood serum metabolite |
4-butyrolactone 4-Butyrolactone: One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.. tetrahydrofuranone : Any oxolane having an oxo- substituent at any position on the tetrahydrofuran ring.. gamma-butyrolactone : A butan-4-olide that is tetrahydrofuran substituted by an oxo group at position 2. | 3.21 | 6 | 0 | butan-4-olide | metabolite; neurotoxin |
4-hydroxybutyric acid 4-hydroxybutyric acid: was an entry term to Sodium Oxybate (74-98). 4-hydroxybutyric acid : A 4-hydroxy monocarboxylic acid that is butyric acid in which one of the hydrogens at position 4 is replaced by a hydroxy group. | 1.92 | 1 | 0 | 4-hydroxy monocarboxylic acid; hydroxybutyric acid | general anaesthetic; GHB receptor agonist; neurotoxin; sedative |
phenylglyoxal [no description available] | 1.95 | 1 | 0 | phenylacetaldehydes | |
glutamic acid Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 6.92 | 1 | 0 | glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical |
2-ketopentanoic acid 2-ketopentanoic acid: RN given refers to parent cpd. 2-oxopentanoic acid : An oxopentanoic acid carrying an oxo group at position 2. | 2.07 | 1 | 0 | 2-oxo monocarboxylic acid; oxopentanoic acid | human metabolite |
coenzyme a [no description available] | 8.29 | 6 | 0 | adenosine 3',5'-bisphosphate | coenzyme; Escherichia coli metabolite; mouse metabolite |
alpha,beta-methyleneadenosine 5'-triphosphate alpha,beta-methyleneadenosine 5'-triphosphate: do not confuse with beta,gamma-methylene ATP; RN given refers to parent cpd | 2.44 | 2 | 0 | nucleoside triphosphate analogue | |
nafronyloxalate [no description available] | 2.06 | 1 | 0 | | |
pantolactone pantolactone: degradation product of pantothenic acid in liver; RN given refers to (+-)-isomer; structure. (R)-pantolactone : A butan-4-olide that is dihydrofuran-2(3H)-one substituted by a hydroxy group at position 3 and two methyl groups at position 4 (the R-stereoisomer). | 8.21 | 6 | 0 | butan-4-olide | Saccharomyces cerevisiae metabolite |
dactinomycin Dactinomycin: A compound composed of a two CYCLIC PEPTIDES attached to a phenoxazine that is derived from STREPTOMYCES parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015) | 2.06 | 1 | 0 | actinomycin | mutagen |
riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms). | 3.06 | 1 | 0 | flavin; vitamin B2 | anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite |
nadp [no description available] | 2.37 | 2 | 0 | | |
cysteine Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | 1.95 | 1 | 0 | cysteinium | fundamental metabolite |
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 1.95 | 1 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |
dihydrofolate dihydrofolic acid : A folic acid derivative acted upon by dihydrofolate reductase to produce tetrahydrofolic acid. It interacts with bacteria during cell division and is targeted by various drugs to prevent nucleic acid synthesis. | 3.06 | 1 | 0 | dihydrofolic acids | Escherichia coli metabolite; mouse metabolite |
guanosine triphosphate Guanosine Triphosphate: Guanosine 5'-(tetrahydrogen triphosphate). A guanine nucleotide containing three phosphate groups esterified to the sugar moiety. | 3.49 | 2 | 0 | guanosine 5'-phosphate; purine ribonucleoside 5'-triphosphate | Escherichia coli metabolite; mouse metabolite; uncoupling protein inhibitor |
folic acid folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin. | 3.06 | 1 | 0 | folic acids; N-acyl-amino acid | human metabolite; mouse metabolite; nutrient |
dihydropteroate dihydropteroate: structure. 7,8-dihydropteroic acid : A pteroic acid derivative arising from formal hydrogenation of the 7,8-double bond of pteroic acid.. 7,8-dihydropteroate : A pteroate that is the conjugate base of 7,8-dihydropteroic acid, arising from deprotonation of the carboxy group. | 3.06 | 1 | 0 | pteroic acids | |