| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 1.96 | 1 | 0 | azane;
gas molecular entity;
mononuclear parent hydride | EC 3.5.1.4 (amidase) inhibitor;
metabolite;
mouse metabolite;
neurotoxin;
NMR chemical shift reference compound;
nucleophilic reagent;
refrigerant |
carnitine
[no description available] | 4.3 | 7 | 0 | amino-acid betaine | human metabolite;
mouse metabolite |
methylmalonic acid
Methylmalonic Acid: A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA.. methylmalonic acid : A dicarboxylic acid that is malonic acid in which one of the methylene hydrogens is substituted by a methyl group. | 2.05 | 1 | 0 | C4-dicarboxylic acid | human metabolite |
lactic acid
Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. | 2.05 | 1 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite;
Daphnia magna metabolite |
glycine
[no description available] | 5.2 | 19 | 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 |
glyceric acid
glyceric acid: found in urine of patient with D-glyceric acidemia & hyperglycinaemia; RN given refers to parent cpd without isomeric designation. glycerol ether : Any ether having glyceryl as at least one of the O-substituents.. glyceric acid : A trionic acid that consists of propionic acid substituted at positions 2 and 3 by hydroxy groups. | 1.96 | 1 | 0 | trionic acid | fundamental metabolite |
kynurenic acid
Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool.. kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. | 2.31 | 1 | 0 | monohydroxyquinoline;
quinolinemonocarboxylic acid | G-protein-coupled receptor agonist;
human metabolite;
neuroprotective agent;
nicotinic antagonist;
NMDA receptor antagonist;
Saccharomyces cerevisiae metabolite |
serine
Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 1.96 | 1 | 0 | L-alpha-amino acid;
proteinogenic amino acid;
serine family amino acid;
serine zwitterion;
serine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
leucine
Leucine: An essential branched-chain amino acid important for hemoglobin formation.. leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group. | 4.13 | 6 | 0 | amino acid zwitterion;
L-alpha-amino acid;
leucine;
proteinogenic amino acid;
pyruvate family amino acid | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
pyridoxic acid
Pyridoxic Acid: The catabolic product of most of VITAMIN B 6; (PYRIDOXINE; PYRIDOXAL; and PYRIDOXAMINE) which is excreted in the urine.. 4-pyridoxic acid : A methylpyridine that is 2-methylpyridine substituted by a hydroxy group at C-3, a carboxy group at C-4, and a hydroxymethyl group at C-5. It is the catabolic product of vitamin B6 and is excreted in the urine.. 4-pyridoxate : A pyridoxate that is the conjugate base of 4-pyridoxic acid, obtained by deprotonation of the carboxy group. | 2.31 | 1 | 0 | hydroxymethylpyridine;
methylpyridines;
monohydroxypyridine;
vitamin B6 | human urinary metabolite;
mouse metabolite |
isovaleric acid
isovaleric acid: structure. isovaleric acid : A C5, branched-chain saturated fatty acid. | 4.68 | 11 | 0 | branched-chain saturated fatty acid;
methylbutyric acid;
short-chain fatty acid | mammalian metabolite;
plant metabolite |
2-hydroxyisobutyric acid
2-hydroxyisobutyric acid : A 2-hydroxy monocarboxylic acid that is isobutyric acid bearing a hydroxy substituent at position 2. It is a metabolite of methyl tertiary-butyl ether. | 1.96 | 1 | 0 | 2-hydroxy monocarboxylic acid | human xenobiotic metabolite |
s-adenosylmethionine
acylcarnitine: structure in first source. S-adenosyl-L-methioninate : A sulfonium betaine that is a conjugate base of S-adenosyl-L-methionine obtained by the deprotonation of the carboxy group. | 2.05 | 1 | 0 | sulfonium betaine | human metabolite |
xanthosine
[no description available] | 2.31 | 1 | 0 | purines D-ribonucleoside;
xanthosines | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
hydracrylic acid
3-hydroxypropionic acid : 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. | 2.05 | 1 | 0 | 3-hydroxy monocarboxylic acid;
omega-hydroxy-short-chain fatty acid | Escherichia coli metabolite;
human metabolite |
beta-hydroxyisovaleric acid
3-hydroxyisovaleric acid : A 3-hydroxy monocarboxylic acid that is isovaleric acid substituted at position 3 by a hydroxy group. Used as indicator of biotin deficiency. | 2.88 | 4 | 0 | 3-hydroxy monocarboxylic acid | human metabolite |
n-butyrylglycine
butyrylglycine : A N-acylglycine obtained by formal condensation of the carboxy group of butyric acid with the amino group of glycine. | 2.38 | 2 | 0 | N-acylglycine | human urinary metabolite |
n-caproylglycine
N-hexanoylglycine : An N-acylglycine in which the acyl group is specified as hexanoyl. | 2.4 | 2 | 0 | N-acylglycine | metabolite |
propionylcarnitine
propionylcarnitine: RN given refers to cpd without isomeric designation | 2.05 | 1 | 0 | O-acylcarnitine | analgesic;
antirheumatic drug;
cardiotonic drug;
human metabolite;
peripheral nervous system drug |
valerates
Valerates: Derivatives of valeric acid, including its salts and esters. | 3.47 | 8 | 0 | short-chain fatty acid anion;
straight-chain saturated fatty acid anion | plant metabolite |
caprylates
Caprylates: Derivatives of caprylic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain a carboxy terminated eight carbon aliphatic structure.. octanoate : A straight-chain saturated fatty acid anion that is the conjugate base of octanoic acid (caprylic acid); believed to block adipogenesis. | 1.95 | 1 | 0 | fatty acid anion 8:0;
straight-chain saturated fatty acid anion | human metabolite;
Saccharomyces cerevisiae metabolite |
proline
Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 1.96 | 1 | 0 | amino acid zwitterion;
glutamine family amino acid;
L-alpha-amino acid;
proline;
proteinogenic amino acid | algal metabolite;
compatible osmolytes;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
isovaleryl-coenzyme a
[no description available] | 1.96 | 1 | 0 | methylbutanoyl-CoA;
short-chain fatty acyl-CoA | mouse metabolite |
2-methylbutyrylglycine
2-methylbutyrylglycine: metabolite of L-isoleucine. N-(2-methylbutanoyl)glycine : A N-acylglycine that is glycine substituted by a 2-methylbutanoyl group at the N atom. | 2.66 | 3 | 0 | N-acylglycine | human metabolite |
indican
[no description available] | 2.31 | 1 | 0 | beta-D-glucoside;
exopolysaccharide;
indolyl carbohydrate | |
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). | 1.96 | 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 |
cinnamoylglycine
cinnamoylglycine: structure given in first source. N-cinnamoylglycine : An N-acylglycine in which the acyl group is specified as (2E)-3-phenylprop-2-enoyl (cinnamoyl). | 2.31 | 1 | 0 | N-acylglycine | metabolite |
D-fructopyranose
[no description available] | 1.96 | 1 | 0 | cyclic hemiketal;
D-fructose;
fructopyranose | sweetening agent |
4-cresol sulfate
p-cresol sulfate : An aryl sulfate that is p-cresol in which the phenolic hydrogen has been replaced by a sulfo group. | 2.31 | 1 | 0 | aryl sulfate | gut flora metabolite;
human metabolite;
uremic toxin |
3-methylbutyrylcarnitine
3-methylbutyrylcarnitine: affects 2-oxo acid dehydrogenase activity in intact mitochondria of rat muscle; RN given refers to (R)-isomer. O-isovalerylcarnitine : A C5-acylcarnitine having isovaleryl as the acyl substituent. | 3.83 | 4 | 0 | C5-acylcarnitine | human metabolite |
tiglylglycine
tiglylglycine: RN is from 9th CI. tiglylglycine : An N-acylglycine that is glycine with an amine hydrogen substituted by a 2-methylbut-2-enoyl (tiglyl) group. | 2.41 | 2 | 0 | N-acylglycine | metabolite |
suberylglycine
suberylglycine: found in urine of patients with C(6)-C(10)-dicarboxylIC aciduria; RN is from 9th CI, Chem Subs Index; structure | 2 | 1 | 0 | N-acylglycine | |
n-isobutyrylglycine
N-isobutyrylglycine: found in urine of patients with glyceric acidemia. N-isobutyrylglycine : An N-acylglycine in which the acyl group is specified as isobutryl. | 2.66 | 3 | 0 | N-acylglycine | human urinary metabolite |