Substance | Relationship Strength | Studies | Trials | Classes | Roles |
gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 2.06 | 1 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
5-aminovaleric acid 5-aminovaleric acid: from red fox anal secretion; RN given refers to parent cpd. 5-aminopentanoic acid : A delta-amino acid comprising pentanoic acid with an amino substituent at C-5; a methylene homologue of gamma-aminobutyric acid (GABA) that is a weak GABA agonist. | 2.06 | 1 | 0 | amino acid zwitterion; delta-amino acid; omega-amino fatty acid | human metabolite |
beta-alanine [no description available] | 2.06 | 1 | 0 | amino acid zwitterion; beta-amino acid | agonist; fundamental metabolite; human metabolite; inhibitor; neurotransmitter |
choline [no description available] | 2.41 | 1 | 0 | cholines | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite |
aminocaproic acid Aminocaproic Acid: An antifibrinolytic agent that acts by inhibiting plasminogen activators which have fibrinolytic properties.. 6-aminohexanoic acid : An epsilon-amino acid comprising hexanoic acid carrying an amino substituent at position C-6. Used to control postoperative bleeding, and to treat overdose effects of the thrombolytic agents streptokinase and tissue plasminogen activator. | 2.06 | 1 | 0 | amino acid zwitterion; epsilon-amino acid; omega-amino fatty acid | antifibrinolytic drug; hematologic agent; metabolite |
glycine [no description available] | 2.06 | 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. | 1.97 | 1 | 0 | guanidinoacetic acids; zwitterion | bacterial metabolite; human metabolite; mouse metabolite; nutraceutical; rat metabolite |
trimethyloxamine trimethyloxamine: used in manufacture of quaternary ammonium cpds; insect attractant; warming agent for gas; oxidant; structure. trimethylamine N-oxide : A tertiary amine oxide resulting from the oxidation of the amino group of trimethylamine. | 3.35 | 1 | 0 | tertiary amine oxide | Escherichia coli metabolite; metabolite; osmolyte |
metformin Metformin: A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289). metformin : A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1. | 2.69 | 2 | 0 | guanidines | environmental contaminant; geroprotector; hypoglycemic agent; xenobiotic |
histidine Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 4.36 | 4 | 1 | amino acid zwitterion; histidine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; 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 |
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. | 2.31 | 1 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
acrylamide [no description available] | 1.96 | 1 | 0 | acrylamides; N-acylammonia; primary carboxamide | alkylating agent; carcinogenic agent; Maillard reaction product; mutagen; neurotoxin |
omega-aminoenantic acid [no description available] | 2.06 | 1 | 0 | medium-chain fatty acid | |
iodine [no description available] | 1.96 | 1 | 0 | halide anion; monoatomic iodine | human metabolite |
guanidinopropionic acid guanidinopropionic acid: alters creatine metabolism; structure. 3-guanidinopropanoic acid : A guanidine compound bearing an N-(2-carboxyethyl) substituent. It is a creatine analogue that has been found to decreases plasma glucose levels | 1.97 | 1 | 0 | guanidines; zwitterion | hypoglycemic agent |
n-acetylhistidine N-acetylhistidine: RN given refers to (L)-isomer. N-acetylhistidine : A histidine derivative that is histidine in which one of the hydrogens of the alpha-amino group is substituted by an acetyl group.. N-acetyl-L-histidine : A histidine derivative that is L-histidine having an acetyl substituent on the alpha-nitrogen. | 1.95 | 1 | 0 | L-histidine derivative; N-acetyl-L-amino acid; N-acetylhistidine | animal metabolite |
methylimidazoleacetic acid methylimidazoleacetic acid: urinary metabolite of histamine & end product of histamine metabolism; RN given refers to parent cpd. 1-methyl-4-imidazoleacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1-methyl-1H-imidazol-4-yl group.. 1-methyl-4-imidazoleacetate : A monocarboxylic acid anion that is the conjugate base of 1-methyl-4-imidazoleacetic acid, obtained by deprotonation of the carboxy group. | 2.31 | 1 | 0 | imidazoles; monocarboxylic acid | GABA agonist; metabolite |
1-methylhistidine 1-methylhistidine: found in muscle proteins; RN given refers to (L)-isomer. 1-methylhistidine : A methylhistidine in which the methyl group is located at N-1.. N(tele)-methyl-L-histidine : A L-histidine derivative in which the methyl group is at N(tele)-position. | 1.95 | 1 | 0 | L-histidine derivative; non-proteinogenic L-alpha-amino acid; zwitterion | human metabolite |
histidine methyl ester histidine methyl ester: RN given refers to (L)-isomer; structure given in first source. histidine methyl ester : An alpha-amino acid ester that is the methyl ester of histidine. | 1.95 | 1 | 0 | histidine derivative | |
imidazoleacetic acid imidazoleacetic acid: RN given refers to cpd without specific location of acetic acid attachment identified; structure. imidazol-5-ylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by an imidazol-5-yl group.. imidazol-4-ylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by an imidazol-4-yl group. | 2.4 | 2 | 0 | imidazoles; monocarboxylic acid | metabolite; mouse metabolite |
alpha-bromo-beta-(5-imidazolyl)propionic acid [no description available] | 1.95 | 1 | 0 | | |
histidylglycine histidylglycine: RN given refers to all (L)-isomer. His-Gly : A dipeptide formed from L-histidine and glycine residues. | 1.95 | 1 | 0 | dipeptide | metabolite |
bicuculline methiodide [no description available] | 1.97 | 1 | 0 | | |
gabazine [no description available] | 1.97 | 1 | 0 | | |
alpha-methylhistidine alpha-methylhistidine : A non-proteinogenic alpha-amino acid that is histidine in which the methyl group is located at the Calpha-position.. alpha-methyl-L-histidine : An alpha-methylhistidine that has L-configuration. | 1.95 | 1 | 0 | alpha-methylhistidine | |
5-benzimidazolecarboxylic acid 5-benzimidazolecarboxylic acid: structure in first source | 2.06 | 1 | 0 | | |
flavin-adenine dinucleotide Flavin-Adenine Dinucleotide: A condensation product of riboflavin and adenosine diphosphate. The coenzyme of various aerobic dehydrogenases, e.g., D-amino acid oxidase and L-amino acid oxidase. (Lehninger, Principles of Biochemistry, 1982, p972) | 2.31 | 1 | 0 | flavin adenine dinucleotide; vitamin B2 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; prosthetic group |
imidazol-1-ylacetic acid imidazol-1-ylacetic acid : An imidazolyl carboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by an imidazol-1-yl group. | 2.06 | 1 | 0 | imidazolyl carboxylic acid | metabolite |
urocanic acid Urocanic Acid: 4-Imidazoleacrylic acid.. urocanic acid : An alpha,beta-unsaturated monocarboxylic acid that is prop-2-enoic acid substituted by a 1H-imidazol-4-yl group at position 3. It is a metabolite of hidtidine.. trans-urocanic acid : A urocanic acid in which the double bond of the carboxyethene moiety has E configuration. | 2.91 | 4 | 0 | urocanic acid | human metabolite |
3-(1H-imidazol-1-yl)propanoic acid [no description available] | 2.06 | 1 | 0 | imidazolyl carboxylic acid | human urinary metabolite |
isothaz isothaz: muscimol antagonist | 1.97 | 1 | 0 | | |
cesium Cesium: A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency. | 1.96 | 1 | 0 | alkali metal atom | |
ginsenoside m1 ginsenoside M1: structure in first source. ginsenoside C-K : A ginsenoside found in Panax species that is dammarane which is substituted by hydroxy groups at the 3beta, 12beta and 20 pro-S positions, in which the hydroxy group at position 20 has been converted to the corresponding beta-D-glucopyranoside, and in which a double bond has been introduced at the 24-25 position. | 2.41 | 1 | 0 | 12beta-hydroxy steroid; 3beta-hydroxy-4,4-dimethylsteroid; 3beta-hydroxy steroid; beta-D-glucoside; ginsenoside; tetracyclic triterpenoid | anti-allergic agent; anti-inflammatory agent; antineoplastic agent; hepatoprotective agent; plant metabolite |
snap 5114 [no description available] | 2.06 | 1 | 0 | | |
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 2.36 | 2 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |