| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
3-hydroxykynurenine
3-hydroxykynurenine: RN given refers to cpd without isomeric designation. 3-hydroxykynurenine : A hydroxykynurenine that is kynurenine substituted by a hydroxy group at position 3.. hydroxykynurenine : A hydroxy-amino acid that is kynurenine substituted by a single hydroxy group at unspecified position. A "closed" class. | 2.17 | 1 | 0 | hydroxykynurenine | human metabolite |
dihydro-3-coumaric acid
dihydro-3-coumaric acid: intermediate in biosynthesis of dihydrophenanthrenes from phenylalanine. 3-(3-hydroxyphenyl)propanoic acid : A monocarboxylic acid that is propionic acid carrying a 3-hydroxyphenyl substituent at C-3. | 1.99 | 1 | 0 | monocarboxylic acid | Escherichia coli metabolite;
human xenobiotic metabolite |
4-hydroxyphenylacetic acid
4-hydroxyphenylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group. | 2.9 | 4 | 0 | monocarboxylic acid;
phenols | fungal metabolite;
human metabolite;
mouse metabolite;
plant metabolite |
acetic acid
Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons. | 2.17 | 1 | 0 | monocarboxylic acid | antimicrobial food preservative;
Daphnia magna metabolite;
food acidity regulator;
protic solvent |
citric acid, anhydrous
Citric Acid: A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability.. citric acid : A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. | 2.17 | 1 | 0 | tricarboxylic acid | antimicrobial agent;
chelator;
food acidity regulator;
fundamental metabolite |
3,4-dihydroxyphenylacetic acid
3,4-Dihydroxyphenylacetic Acid: A deaminated metabolite of LEVODOPA.. (3,4-dihydroxyphenyl)acetic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents located at the 3- and 4-positions. It is a metabolite of dopamine.. dihydroxyphenylacetic acid : A dihydroxy monocarboxylic acid consisting of phenylacetic acid having two phenolic hydroxy substituents. | 2.39 | 2 | 0 | catechols;
dihydroxyphenylacetic 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. | 2.17 | 1 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite;
Daphnia magna metabolite |
glycine
[no description available] | 2.17 | 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 |
glycocyamine
glycocyamine: RN given refers to parent cpd; structure. guanidinoacetate : A monocarboxylic acid anion that is the conjugate base of guanidinoacetic acid, obtained by deprotonation of the carboxy group.. guanidinoacetic acid : The N-amidino derivative of glycine. | 2.17 | 1 | 0 | guanidinoacetic acids;
zwitterion | bacterial metabolite;
human metabolite;
mouse metabolite;
nutraceutical;
rat metabolite |
homogentisic acid
Homogentisic Acid: Dihydroxyphenylacetic acid with hydroxyls at the 2 and 5 positions of the phenyl ring.. homogentisic acid : A dihydroxyphenylacetic acid having the two hydroxy substituents at the 2- and 5-positions. | 2.44 | 2 | 0 | dihydroxyphenylacetic acid;
hydroquinones | human metabolite;
plant metabolite |
indoleacetic acid
indoleacetic acid: RN given refers to unlabeled parent cpd; structure in Merck Index, 9th ed, #4841. auxin : Any of a group of compounds, both naturally occurring and synthetic, that induce cell elongation in plant stems (from Greek alphaupsilonxialphanuomega, "to grow").. indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 1.96 | 1 | 0 | indole-3-acetic acids;
monocarboxylic acid | auxin;
human metabolite;
mouse metabolite;
plant hormone;
plant metabolite |
kynurenine
Kynurenine: A metabolite of the essential amino acid tryptophan metabolized via the tryptophan-kynurenine pathway.. kynurenine : A ketone that is alanine in which one of the methyl hydrogens is substituted by a 2-aminobenzoyl group. | 2.17 | 1 | 0 | aromatic ketone;
non-proteinogenic alpha-amino acid;
substituted aniline | human metabolite |
phenylacetic acid
phenylacetic acid : A monocarboxylic acid that is toluene in which one of the hydrogens of the methyl group has been replaced by a carboxy group. | 1.96 | 1 | 0 | benzenes;
monocarboxylic acid;
phenylacetic acids | allergen;
Aspergillus metabolite;
auxin;
EC 6.4.1.1 (pyruvate carboxylase) inhibitor;
Escherichia coli metabolite;
human metabolite;
plant growth retardant;
plant metabolite;
Saccharomyces cerevisiae metabolite;
toxin |
phenethylamine
phenethylamine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7016. 2-phenylethylamine : A phenylethylamine having the phenyl substituent at the 2-position. | 1.96 | 1 | 0 | alkaloid;
aralkylamine;
phenylethylamine | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
tryptamine
[no description available] | 1.96 | 1 | 0 | aminoalkylindole;
aralkylamino compound;
indole alkaloid;
tryptamines | human metabolite;
mouse metabolite;
plant metabolite |
hydroxyindoleacetic acid
(5-hydroxyindol-3-yl)acetic acid : A member of the class of indole-3-acetic acids that is indole-3-acetic acid substituted by a hydroxy group at C-5. | 1.96 | 1 | 0 | indole-3-acetic acids | drug metabolite;
human metabolite;
mouse metabolite |
tyramine
[no description available] | 1.96 | 1 | 0 | monoamine molecular messenger;
primary amino compound;
tyramines | EC 3.1.1.8 (cholinesterase) inhibitor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter |
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. | 2.17 | 1 | 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 |
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. | 2.17 | 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 |
phenylalanine
Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. | 1.96 | 1 | 0 | amino acid zwitterion;
erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid;
phenylalanine;
proteinogenic amino acid | algal metabolite;
EC 3.1.3.1 (alkaline phosphatase) inhibitor;
Escherichia coli metabolite;
human xenobiotic metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
tryptophan
Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3. | 1.96 | 1 | 0 | erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid zwitterion;
L-alpha-amino acid;
proteinogenic amino acid;
tryptophan zwitterion;
tryptophan | antidepressant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
3-tyramine
3-tyramine: MH Tyramine refers to 4-tyramine; RN given refers to parent cpd. m-tyramine : A primary amino compound that is 2-phenylethanamine substituted by a hydroxy group at position 3. | 1.96 | 1 | 0 | primary amino compound;
tyramines | human urinary metabolite;
neurotransmitter |
3-methylhistidine
3-methylhistidine: marker for myofibrillar-protein breakdown; RN given refers to (L)-isomer. 3-methylhistidine : A methylhistidine in which the methyl group is located at N-3.. N(pros)-methyl-L-histidine : A L-histidine derivative that is L-histidine substituted by a methyl group at position 3 on the imidazole ring. | 2.17 | 1 | 0 | L-histidine derivative;
non-proteinogenic L-alpha-amino acid;
zwitterion | human metabolite;
Saccharomyces cerevisiae metabolite |
phenylacetylglycine
phenylacetylglycine : A N-acylglycine that is glycine substituted on nitrogen with a phenylacetyl group. | 2.17 | 1 | 0 | monocarboxylic acid amide;
monocarboxylic acid;
N-acylglycine | human metabolite;
mouse metabolite |