Substance | Relationship Strength | Studies | Trials | Classes | Roles |
benzaldehyde [no description available] | 2 | 1 | 0 | benzaldehydes | EC 3.1.1.3 (triacylglycerol lipase) inhibitor; EC 3.5.5.1 (nitrilase) inhibitor; flavouring agent; fragrance; odorant receptor agonist; plant metabolite |
dihydroxyphenylalanine Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring. | 6.31 | 9 | 0 | hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative | human metabolite |
pqq cofactor PQQ Cofactor: A pyrrolo-quinoline having two adjacent keto-groups at the 4 and 5 positions and three acidic carboxyl groups. It is a coenzyme of some DEHYDROGENASES.. pyrroloquinoline quinone : A pyrroloquinoline having oxo groups at the 4- and 5-positions and carboxy groups at the 2-, 7- and 9-positions. | 4.85 | 4 | 0 | orthoquinones; pyrroloquinoline cofactor; tricarboxylic acid | anti-inflammatory agent; antioxidant; cofactor; water-soluble vitamin (role) |
aminopropionitrile Aminopropionitrile: Reagent used as an intermediate in the manufacture of beta-alanine and pantothenic acid. | 2.41 | 2 | 0 | aminopropionitrile | antineoplastic agent; antirheumatic drug; collagen cross-linking inhibitor; plant metabolite |
carbamylhydrazine carbamylhydrazine: RN given refers to parent cpd | 2.4 | 2 | 0 | carbohydrazide; monocarboxylic acid amide; one-carbon compound; ureas | |
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. | 7.2 | 20 | 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 |
carbostyril Quinolones: A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID.. quinolin-2(1H)-one : A quinolone that is 1,2-dihydroquinoline substituted by an oxo group at position 2. | 4.85 | 4 | 0 | monohydroxyquinoline; quinolone | bacterial xenobiotic metabolite |
edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. | 2 | 1 | 0 | ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid | anticoagulant; antidote; chelator; copper chelator; geroprotector |
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 3.1 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
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. | 5.66 | 6 | 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 |
acetonitrile acetonitrile: RN given refers to unlabeled cpd. acetonitrile : A nitrile that is hydrogen cyanide in which the hydrogen has been replaced by a methyl group. | 2 | 1 | 0 | aliphatic nitrile; volatile organic compound | EC 3.5.1.4 (amidase) inhibitor; NMR chemical shift reference compound; polar aprotic solvent |
butylphen butylphen: irritant; structure. 4-tert-butylphenol : A member of the class of phenols that is phenol substituted with a tert-butyl group at position 4. | 2 | 1 | 0 | phenols | allergen |
benzylamine aminotoluene : Any member of the class of toluenes carrying one or more amino groups. | 7.41 | 2 | 0 | aralkylamine; primary amine | allergen; EC 3.5.5.1 (nitrilase) inhibitor; plant metabolite |
phenylhydrazine [no description available] | 2.01 | 1 | 0 | phenylhydrazines | xenobiotic |
4-methylcatechol [no description available] | 2 | 1 | 0 | methylcatechol | antioxidant; carcinogenic agent; hapten; human metabolite; plant metabolite |
aminoacetonitrile Aminoacetonitrile: Cyanomethylamine. | 2.01 | 1 | 0 | | |
4-ethylphenol 4-ethylphenol: RN given refers to parent cpd. 4-ethylphenol : A member of the class of phenols carrying an ethyl substituent at position 4. | 2.01 | 1 | 0 | phenols | fungal xenobiotic metabolite |
6-hydroxydopa quinone 6-hydroxydopa quinone: structure given in first source; quinoid cofactor of quinoproteins; RN given refers to the 4-hydroxy-3,6-dioxo- tautomer. L-topaquinone : A topaquinone that has S configuration. | 6.31 | 9 | 0 | | |
thiosemicarbazide thiosemicarbazide: glutamate decarboxylase antagonist; structure given in first source. hydrazinecarbothioamide : A member of the class of thioureas that is thiourea in which a hydrogen of one of the amino groups is replaced by an amino group. | 2.01 | 1 | 0 | hydrazines; thiocarboxamide; thioureas | |
tryptophan tryptophylquinone tryptophan tryptophylquinone: prosthetic group of the quinoprotein methylamine dehydrogenase; structure given in first source | 5.66 | 6 | 0 | | |
methionyltryptophan Met-Trp : A dipeptide formed from L-methionine and L-tryptophan residues. | 3.27 | 1 | 0 | dipeptide | metabolite |
4-nitrophenylhydrazine 4-nitrophenylhydrazine: reagent for ketones, aliphatic aldehydes; RN given refers to parent cpd; structure. 4-nitrophenylhydrazine : A member of the class of phenylhydrazines that is phenylhydrazine substituted at the 4-position by a nitro group. | 2.01 | 1 | 0 | C-nitro compound; phenylhydrazines | mutagen |
tryptophyltyrosine tryptophyltyrosine: RN given refers to (L)-isomer | 3.27 | 1 | 0 | | |
sodium iodate sodium iodate: RN given refers to iodic acid, Na salt | 2 | 1 | 0 | organic molecular entity | |
heme Heme: The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.. ferroheme : Any iron(II)--porphyrin coordination complex.. ferroheme b : Heme b in which the iron has oxidation state +2.. heme : A heme is any tetrapyrrolic chelate of iron. | 3.27 | 1 | 0 | | |
cysteine tryptophylquinone cysteine tryptophylquinone: cofactor of quinohemoprotein amine dehydrogenase. cysteine tryptophylquinone : An L-tryptophan derivative that is L-tryptophan-6,7-dione in which a cysteine unit is attached at position 4 via its side-chain thiol group. | 3.27 | 1 | 0 | L-cysteine thioether; L-tryptophan derivative; orthoquinones | |