| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
anthranilic acid
anthranilic acid: RN given refers to parent cpd; structure in Negwer, 5th ed, #565. anthranilic acid : An aminobenzoic acid that is benzoic acid having a single amino substituent located at position 2. It is a metabolite produced in L-tryptophan-kynurenine pathway in the central nervous system. | 1.93 | 1 | 0 | aminobenzoic acid | human metabolite;
mouse metabolite |
indoleacetamide
indoleacetamide: article does not mention position of acetamide group; amide of indole-3-acetic acid (IAA), the natural auxin found in plants. indole-3-acetamide : A member of the class of indoles that is acetamide substituted by a 1H-indol-3-yl group at position 2. It is an intermediate in the production of plant hormone indole acetic acid (IAA). | 2.06 | 1 | 0 | indoles;
monocarboxylic acid amide;
N-acylammonia | bacterial metabolite;
fungal metabolite;
plant metabolite |
glycine
[no description available] | 2.04 | 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 |
indole
[no description available] | 2.34 | 2 | 0 | indole;
polycyclic heteroarene | Escherichia coli 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 indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 2.71 | 3 | 0 | indole-3-acetic acids;
monocarboxylic acid | auxin;
human metabolite;
mouse metabolite;
plant hormone;
plant metabolite |
methanol
Methanol: A colorless, flammable liquid used in the manufacture of FORMALDEHYDE and ACETIC ACID, in chemical synthesis, antifreeze, and as a solvent. Ingestion of methanol is toxic and may cause blindness.. primary alcohol : A primary alcohol is a compound in which a hydroxy group, -OH, is attached to a saturated carbon atom which has either three hydrogen atoms attached to it or only one other carbon atom and two hydrogen atoms attached to it.. methanol : The primary alcohol that is the simplest aliphatic alcohol, comprising a methyl and an alcohol group. | 2.07 | 1 | 0 | alkyl alcohol;
one-carbon compound;
primary alcohol;
volatile organic compound | amphiprotic solvent;
Escherichia coli metabolite;
fuel;
human metabolite;
mouse metabolite;
Mycoplasma genitalium metabolite |
melatonin
[no description available] | 2.07 | 1 | 0 | acetamides;
tryptamines | anticonvulsant;
central nervous system depressant;
geroprotector;
hormone;
human metabolite;
immunological adjuvant;
mouse metabolite;
radical scavenger |
purine
1H-purine : The 1H-tautomer of purine.. 3H-purine : The 3H-tautomer of purine.. 9H-purine : The 9H-tautomer of purine.. 7H-purine : The 7H-tautomer of purine. | 1.93 | 1 | 0 | purine | |
quinolinic acid
Quinolinic Acid: A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated CSF levels of quinolinic acid are correlated with the severity of neuropsychological deficits in patients who have AIDS.. pyridinedicarboxylic acid : Any member of the class of pyridines carrying two carboxy groups.. quinolinic acid : A pyridinedicarboxylic acid that is pyridine substituted by carboxy groups at positions 2 and 3. It is a metabolite of tryptophan. | 1.98 | 1 | 0 | pyridinedicarboxylic acid | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
NMDA receptor agonist |
tryptamine
[no description available] | 2.73 | 3 | 0 | aminoalkylindole;
aralkylamino compound;
indole alkaloid;
tryptamines | human metabolite;
mouse metabolite;
plant metabolite |
amitrole
Amitrole: A non-selective post-emergence, translocated herbicide. According to the Seventh Annual Report on Carcinogens (PB95-109781, 1994) this substance may reasonably be anticipated to be a carcinogen. (From Merck Index, 12th ed) It is an irreversible inhibitor of CATALASE, and thus impairs activity of peroxisomes.. amitrole : A member of the class of triazoles that is 1H-1,2,4-triazole substituted by an amino group at position 3. Used to control annual grasses and aquatic weeds (but not on food crops because it causes cancer in laboratory animals). Its use within the EU was banned from September 2017 on the grounds of potential groundwater contamination and risks to aquatic life; there have also been concerns about its endocrine-disrupting properties. | 2.37 | 2 | 0 | aromatic amine;
triazoles | carotenoid biosynthesis inhibitor;
EC 1.11.1.6 (catalase) inhibitor;
herbicide |
caffeine
[no description available] | 1.93 | 1 | 0 | purine alkaloid;
trimethylxanthine | adenosine A2A receptor antagonist;
adenosine receptor antagonist;
adjuvant;
central nervous system stimulant;
diuretic;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor;
environmental contaminant;
food additive;
fungal metabolite;
geroprotector;
human blood serum metabolite;
mouse metabolite;
mutagen;
plant metabolite;
psychotropic drug;
ryanodine receptor agonist;
xenobiotic |
indolepropionic acid
indolepropionic acid: structure in third source. 3-(1H-indol-3-yl)propanoic acid : An indol-3-yl carboxylic acid that is propionic acid substituted by a 1H-indol-3-yl group at position 3. | 1.99 | 1 | 0 | indol-3-yl carboxylic acid | auxin;
human metabolite;
plant metabolite |
p-fluorophenylalanine
p-Fluorophenylalanine: 3-(p-Fluorophenyl)-alanine.. 4-fluorophenylalanine : A phenylalanine derivative in which the hydrogen at position 4 on the benzene ring is replaced by a fluoro group. | 1.98 | 1 | 0 | fluoroamino acid;
monofluorobenzenes;
non-proteinogenic alpha-amino acid;
phenylalanine derivative | |
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. | 2.03 | 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 |
chloramphenicol
Amphenicol: Chloramphenicol and its derivatives. | 1.93 | 1 | 0 | C-nitro compound;
carboxamide;
diol;
organochlorine compound | antibacterial drug;
antimicrobial agent;
Escherichia coli metabolite;
geroprotector;
Mycoplasma genitalium metabolite;
protein synthesis inhibitor |
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. | 2.46 | 2 | 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 |
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. | 1.98 | 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. | 2.37 | 2 | 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 |
threonine
Threonine: An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins.. threonine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group. | 1.98 | 1 | 0 | amino acid zwitterion;
aspartate family amino acid;
L-alpha-amino acid;
proteinogenic amino acid;
threonine | algal metabolite;
Escherichia coli metabolite;
human 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. | 5.09 | 44 | 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 |
shikimic acid
Shikimic Acid: A tri-hydroxy cyclohexene carboxylic acid important in biosynthesis of so many compounds that the shikimate pathway is named after it.. shikimic acid : A cyclohexenecarboxylic acid that is cyclohex-1-ene-1-carboxylic acid substituted by hydroxy groups at positions 3, 4 and 5 (the 3R,4S,5R stereoisomer). It is an intermediate metabolite in plants and microorganisms. | 2.07 | 1 | 0 | alpha,beta-unsaturated monocarboxylic acid;
cyclohexenecarboxylic acid;
hydroxy monocarboxylic acid | Escherichia coli metabolite;
plant metabolite;
Saccharomyces cerevisiae metabolite |
5-fluorotryptophan
5-fluorotryptophan: RN given refers to cpd with unspecified isomeric designation. 5-fluorotryptophan : A non-proteinogenic alpha-amino acid that is tryptophan in which the hydrogen at position 5 on the indole ring is replaced by a fluoro group. | 2.68 | 3 | 0 | non-proteinogenic alpha-amino acid;
organofluorine compound;
tryptophan derivative | |
5-methylindole
[no description available] | 1.99 | 1 | 0 | | |
sodium hydroxide
Sodium Hydroxide: A highly caustic substance that is used to neutralize acids and make sodium salts. (From Merck Index, 11th ed) | 2.11 | 1 | 0 | alkali metal hydroxide | |
cadmium chloride
Cadmium Chloride: A cadmium halide in the form of colorless crystals, soluble in water, methanol, and ethanol. It is used in photography, in dyeing, and calico printing, and as a solution to precipitate sulfides. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed). cadmium dichloride : A cadmium coordination entity in which cadmium(2+) and Cl(-) ions are present in the ratio 2:1. Although considered to be ionic, it has considerable covalent character to its bonding. | 2.03 | 1 | 0 | cadmium coordination entity | |
ethionine
L-ethionine : An S-ethylhomocysteine that has S-configuration at the chiral centre. | 2.35 | 2 | 0 | S-ethylhomocysteine | antimetabolite;
carcinogenic agent |
2-bromoethanesulfonic acid
2-bromoethanesulfonic acid: RN given refers to parent cpd; a methanogenic inhibitor | 1.97 | 1 | 0 | | |
6-fluorotryptophan
6-fluorotryptophan: an inhibitor of serotonin synthesis; RN given refers to parent cpd without isomeric designation | 2.41 | 2 | 0 | indolyl carboxylic acid | |
1-methyltryptophan
[no description available] | 2.05 | 1 | 0 | non-proteinogenic alpha-amino acid;
tryptophan derivative | antineoplastic agent;
EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor |
tryptophan methyl ester
tryptophan methyl ester: RN given refers to parent cpd(DL)-isomer | 2.63 | 3 | 0 | | |
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. | 1.94 | 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 |
abrine
abrine: from seeds of Abrus precatorius; structure in first source. N(alpha)-methyl-L-tryptophan : A N-methyl-L-alpha-amino acid that is the N(alpha)-methyl derivative of L-tryptophan. | 2.05 | 1 | 0 | L-tryptophan derivative;
N-methyl-L-alpha-amino acid zwitterion;
N-methyl-L-alpha-amino acid | Escherichia coli metabolite |
lignin
Lignin: The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed). lignin : A polyphenylpropanoid derived from three monolignol monomers: trans-p-coumaryl alcohol, coniferol and trans-sinapyl alcohol. There is extensive cross-linking and no defined primary structure. | 2.07 | 1 | 0 | | |
brevianamide f
brevianamide F: isolated from the endophyte from Aspergillus fumigatus associated with Melia azedarach L that could be used to develop a natural eco-friendly herbicide.structure in first source. brevianamide F : A pyrrolopyrazine that is hexahydropyrrolo[1,2-a]pyrazine-1,4-dione bearing an indol-3-ylmethyl substituent at position 3 (the 3S,8aS-diastereomer, obtained by formal cyclocondensation of L-tryptophan and L-proline). | 2.05 | 1 | 0 | dipeptide;
indoles;
pyrrolopyrazine | metabolite |
2-naphthylalanine
2-naphthylalanine: structure in first source | 2.03 | 1 | 0 | | |
canavanine
L-canavanine : A non-proteinogenic L-alpha-amino acid that is L-homoserine substituted at oxygen with a guanidino (carbamimidamido) group. Although structurally related to L-arginine, it is non-proteinogenic. | 1.96 | 1 | 0 | amino acid zwitterion;
non-proteinogenic L-alpha-amino acid | phytogenic insecticide;
plant metabolite |
5-hydroxytryptophan
hydroxytryptophan : A hydroxy-amino acid that is tryptophan substituted by at least one hydroxy group at unspecified position.. 5-hydroxy-L-tryptophan : The L-enantiomer of 5-hydroxytryptophan. | 2.05 | 1 | 0 | 5-hydroxytryptophan;
amino acid zwitterion;
hydroxy-L-tryptophan;
non-proteinogenic L-alpha-amino acid | human metabolite;
mouse metabolite;
plant metabolite |
alpha-methyltryptophan, (l)-isomer
[no description available] | 2.11 | 1 | 0 | | |
indoleacrylic acid
indoleacrylic acid: Russian drug; natural auxin from lentil roots; RN given refers to parent cpd without isomeric designation | 1.99 | 1 | 0 | | |
hygromycin a
hygromycin A: a cinnamide derivative produced by Streptomyces hygroscopicus; structure differs from HYGROMYCIN B | 2.03 | 1 | 0 | hydroxycinnamic acid | metabolite |
3-tyrosine
3-tyrosine: RN given refers to cpd with unspecified isomeric designation. L-m-tyrosine : A hydroxyphenylalanine that is L-phenylalanine with a substituent hydroxy group at position 3. | 2.05 | 1 | 0 | hydroxyphenylalanine;
L-alpha-amino acid zwitterion;
L-phenylalanine derivative;
non-proteinogenic L-alpha-amino acid;
phenols | plant metabolite |
acebutolol
alpha-D-glucosyl-(1->4)-alpha-D-mannose : An alpha-D-glucosyl-(1->4)-D-mannopyranose in which the anomeric hydroxy group has alpha configuration. | 1.94 | 1 | 0 | alpha-D-glucosyl-(1->4)-D-mannopyranose | |
vindoline
[no description available] | 7.07 | 1 | 0 | | |
2-methyltryptophan
2-methyltryptophan: RN given for (L)-isomer. 2-methyl-L-tryptophan : An L-tryptophan derivative in which the hydrogen at position 2 on the indole ring is replaced by a methyl group. | 1.94 | 1 | 0 | amino acid zwitterion;
L-tryptophan derivative | bacterial metabolite |
hygromycin b
[no description available] | 2.03 | 1 | 0 | | |
compstatin
compstatin: binds to complement 3; amino acid sequence in first source | 2.03 | 1 | 0 | | |
azaguanine
Azaguanine: One of the early purine analogs showing antineoplastic activity. It functions as an antimetabolite and is easily incorporated into ribonucleic acids.. 8-azaguanine : A triazolopyrimidine that consists of 3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidine bearing amino and oxo substituents at positions 5 and 7 respectively. | 1.93 | 1 | 0 | nucleobase analogue;
triazolopyrimidines | antimetabolite;
antineoplastic agent;
EC 2.4.2.1 (purine-nucleoside phosphorylase) inhibitor |