| 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. | 2.02 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
beta-alanine
[no description available] | 1.98 | 1 | 0 | amino acid zwitterion;
beta-amino acid | agonist;
fundamental metabolite;
human metabolite;
inhibitor;
neurotransmitter |
betaine
glycine betaine : The amino acid betaine derived from glycine. | 1.98 | 1 | 0 | amino-acid betaine;
glycine derivative | fundamental metabolite |
choline
[no description available] | 1.98 | 1 | 0 | cholines | allergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter;
nutrient;
plant metabolite;
Saccharomyces cerevisiae metabolite |
chlorine
chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 1.97 | 1 | 0 | halide anion;
monoatomic chlorine | cofactor;
Escherichia coli metabolite;
human metabolite |
phloroglucinol
Phloroglucinol: A trinitrobenzene derivative with antispasmodic properties that is used primarily as a laboratory reagent.. phloroglucinol : A benzenetriol with hydroxy groups at position 1, 3 and 5. | 2.02 | 1 | 0 | benzenetriol;
phenolic donor | algal metabolite |
glycine
[no description available] | 1.98 | 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 |
pipecolic acid
pipecolic acid: RN given refers to cpd without isomeric designation. pipecolic acid : A piperidinemonocarboxylic acid in which the carboxy group is located at position C-2.. pipecolate : A piperidinecarboxylate that is the conjugate base of pipecolic acid. | 1.97 | 1 | 0 | piperidinemonocarboxylic acid | |
succinic acid
Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. | 3.16 | 1 | 0 | alpha,omega-dicarboxylic acid;
C4-dicarboxylic acid | anti-ulcer drug;
fundamental metabolite;
micronutrient;
nutraceutical;
radiation protective agent |
delta(1)-piperidine-2-carboxylic acid
delta(1)-piperidine-2-carboxylic acid: proposed intermediate in pathway of lysine metabolism. 1-piperideine-2-carboxylic acid zwitterion : A zwitterion resulting from the transfer of a proton from the carboxy group to the nitrogen of 1-piperideine-2-carboxylic acid | 2.01 | 1 | 0 | piperidinemonocarboxylic acid;
zwitterion | |
2,2'-dipyridyl
2,2'-Dipyridyl: A reagent used for the determination of iron.. 2,2'-bipyridine : A bipyridine in which the two pyridine moieties are linked by a bond between positions C-2 and C-2'. | 2.66 | 3 | 0 | bipyridine | chelator;
ferroptosis inhibitor |
aminopropionitrile
Aminopropionitrile: Reagent used as an intermediate in the manufacture of beta-alanine and pantothenic acid. | 2.36 | 2 | 0 | aminopropionitrile | antineoplastic agent;
antirheumatic drug;
collagen cross-linking inhibitor;
plant metabolite |
beta-glycerophosphoric acid
beta-glycerophosphoric acid: plays role in mineralization of bone in vitro. glycerol 2-phosphate : A glycerol monophosphate having the phosphate group at the 2-position. | 1.99 | 1 | 0 | glycerol monophosphate | Escherichia coli metabolite;
plant metabolite |
gentamicin
Gentamicins: A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS. | 2.03 | 1 | 0 | | |
4-piperidinecarboxylic acid
4-piperidinecarboxylic acid: structure in first source | 1.98 | 1 | 0 | | |
rolipram
[no description available] | 2.02 | 1 | 0 | pyrrolidin-2-ones | antidepressant;
EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
zinc chloride
zinc chloride: RN given refers to parent cpd. zinc dichloride : A compound of zinc and chloride ions in the ratio 1:2. It exists in four crystalline forms, in each of which the Zn(2+) ions are trigonal planar coordinated to four chloride ions. | 1.97 | 1 | 0 | inorganic chloride;
zinc molecular entity | astringent;
disinfectant;
EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor;
Lewis acid |
thymidine
[no description available] | 1.97 | 1 | 0 | pyrimidine 2'-deoxyribonucleoside | Escherichia coli metabolite;
human metabolite;
metabolite;
mouse metabolite |
hydroxyproline
Hydroxyproline: A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.. hydroxyproline : A proline derivative that is proline substituted by at least one hydroxy group. | 3.48 | 8 | 0 | 4-hydroxyproline;
L-alpha-amino acid zwitterion | human metabolite;
mouse metabolite;
plant metabolite |
pentylenetetrazole
Pentylenetetrazole: A pharmaceutical agent that displays activity as a central nervous system and respiratory stimulant. It is considered a non-competitive GAMMA-AMINOBUTYRIC ACID antagonist. Pentylenetetrazole has been used experimentally to study seizure phenomenon and to identify pharmaceuticals that may control seizure susceptibility.. pentetrazol : An organic heterobicyclic compound that is 1H-tetrazole in which the hydrogens at positions 1 and 5 are replaced by a pentane-1,5-diyl group. A central and respiratory stimulant, it was formerly used for the treatment of cough and other respiratory tract disorders, cardiovascular disorders including hypotension, and pruritis. | 1.97 | 1 | 0 | organic heterobicyclic compound;
organonitrogen heterocyclic compound | |
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. | 2.66 | 3 | 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 |
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. | 2.01 | 1 | 0 | ethylenediamine derivative;
polyamino carboxylic acid;
tetracarboxylic acid | anticoagulant;
antidote;
chelator;
copper chelator;
geroprotector |
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. | 2.02 | 1 | 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 |
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. | 2.02 | 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 |
desoxycorticosterone
Desoxycorticosterone: A steroid metabolite that is the 11-deoxy derivative of CORTICOSTERONE and the 21-hydroxy derivative of PROGESTERONE | 1.96 | 1 | 0 | 20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
mineralocorticoid;
primary alpha-hydroxy ketone | human metabolite;
mouse metabolite |
colchicine
(S)-colchicine : A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions. | 1.95 | 1 | 0 | alkaloid;
colchicine | anti-inflammatory agent;
gout suppressant;
mutagen |
ornithine
Ornithine: An amino acid produced in the urea cycle by the splitting off of urea from arginine.. ornithine : An alpha-amino acid that is pentanoic acid bearing two amino substituents at positions 2 and 5. | 1.96 | 1 | 0 | non-proteinogenic L-alpha-amino acid;
ornithine | algal metabolite;
hepatoprotective agent;
mouse metabolite |
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. | 1.96 | 1 | 0 | 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 |
3-mercaptopropionic acid
3-Mercaptopropionic Acid: An inhibitor of glutamate decarboxylase. It decreases the GAMMA-AMINOBUTYRIC ACID concentration in the brain, thereby causing convulsions.. 3-mercaptopropanoic acid : A mercaptopropanoic acid that is propanoic acid carrying a sulfanyl group at position 3. | 1.97 | 1 | 0 | mercaptopropanoic acid | algal metabolite |
D-proline
[no description available] | 1.98 | 1 | 0 | D-alpha-amino acid zwitterion;
D-alpha-amino acid;
proline | mouse metabolite |
arecaidine
[no description available] | 1.98 | 1 | 0 | citraconoyl group | |
acetylcysteine
N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. | 1.97 | 1 | 0 | acetylcysteine;
L-cysteine derivative;
N-acetyl-L-amino acid | antidote to paracetamol poisoning;
antiinfective agent;
antioxidant;
antiviral drug;
ferroptosis inhibitor;
geroprotector;
human metabolite;
mucolytic;
radical scavenger;
vulnerary |
paraquat
Paraquat: A poisonous dipyridilium compound used as contact herbicide. Contact with concentrated solutions causes irritation of the skin, cracking and shedding of the nails, and delayed healing of cuts and wounds.. paraquat : An organic cation that consists of 4,4'-bipyridine bearing two N-methyl substituents loctated at the 1- and 1'-positions. | 2.67 | 3 | 0 | organic cation | geroprotector;
herbicide |
azetidyl-2-carboxylic acid
azetidyl-2-carboxylic acid: a proline analog (with 4-membered ring in place of 5); a toxic non-protein amino acid that is misincorporated into protein in place of proline; induces nonfunctional heat-shock proteins; inhibits acquired thermotolerance; RN given refers to (L)-isomer; found in beets and Liliaceae. (S)-azetidine-2-carboxylic acid : The (S)-enantiomer of azetidine-2-carboxylic acid.. azetidinecarboxylic acid : A member of the class of azetidines that is azetidine substituted by at least one carboxy group at unspecified position. | 3.48 | 8 | 0 | azetidine-2-carboxylic acid | |
palladium
Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46. | 1.96 | 1 | 0 | metal allergen;
nickel group element atom;
platinum group metal atom | |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 1.95 | 1 | 0 | dihydrogen | |
glutamic acid
Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2.66 | 3 | 0 | glutamic acid;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
ferroptosis inducer;
micronutrient;
mouse metabolite;
neurotransmitter;
nutraceutical |
glucose, (beta-d)-isomer
beta-D-glucose : D-Glucopyranose with beta configuration at the anomeric centre.. (1->4)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->4) linkages.. (1->3)-beta-D-glucan : A beta-D-glucan in which the glucose units are connected by (1->3) linkages. | 2.02 | 1 | 0 | D-glucopyranose | epitope;
mouse metabolite |
D-alanine
[no description available] | 1.98 | 1 | 0 | alanine zwitterion;
alanine;
D-alpha-amino acid | EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor;
Escherichia coli metabolite;
human metabolite |
ethyl protocatechuate
ethyl protocatechuate: structure. ethyl 3,4-dihydroxybenzoate : An ethyl ester resulting from the formal condensation of the carboxy group of 3,4-dihydroxybenzoic acid with ethanol. It is the anti-oxidative component of peanut seed testa. | 1.99 | 1 | 0 | catechols;
ethyl ester | antibacterial agent;
antioxidant;
apoptosis inducer;
EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor;
plant metabolite |
pyrrole-3-carboxylic acid
[no description available] | 1.98 | 1 | 0 | pyrrolecarboxylic acid | metabolite;
Penicillium metabolite |
arginyl-glycyl-aspartic acid
arginyl-glycyl-aspartic acid: amino acid sequence of basic unit of widespread cellular recognition system | 2.01 | 1 | 0 | oligopeptide | |
1,4-dideoxy-1,4-iminoarabinitol
1,4-dideoxy-1,4-iminoarabinitol: RN given refers to (2S-(2alpha,3beta,4alpha))-isomer; structure given in first source | 1.98 | 1 | 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. | 6.42 | 56 | 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 |
5-deazariboflavin
5-deazariboflavin: deaza analog of riboflavin used to elucidate chemical role of the flavin coenzyme; structure | 2.01 | 1 | 0 | | |
arabinose
[no description available] | 1.98 | 1 | 0 | L-arabinose | Escherichia coli metabolite;
mouse metabolite |
elastin
[no description available] | 1.96 | 1 | 0 | oligopeptide | |
tartaric acid
tartaric acid: RN given refers to cpd with unspecified isomeric designation. D-tartaric acid : The D-enantiomer of tartaric acid. | 3.16 | 1 | 0 | tartaric acid | Escherichia coli metabolite |
strychnine
Strychnine: An alkaloid found in the seeds of STRYCHNOS NUX-VOMICA. It is a competitive antagonist at glycine receptors and thus a convulsant. It has been used as an analeptic, in the treatment of nonketotic hyperglycinemia and sleep apnea, and as a rat poison.. strychnine : A monoterpenoid indole alkaloid that is strychnidine bearing a keto substituent at the 10-position. | 1.97 | 1 | 0 | monoterpenoid indole alkaloid;
organic heteroheptacyclic compound | avicide;
cholinergic antagonist;
glycine receptor antagonist;
neurotransmitter agent;
rodenticide |
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). | 2.01 | 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 |
beta-aminopropionitrile fumarate
beta-aminopropionitrile fumarate: RN given refers to unspecified fumarate | 1.95 | 1 | 0 | | |
nikkomycin
[no description available] | 2.01 | 1 | 0 | | |
lipid a
Lipid A: Lipid A is the biologically active component of lipopolysaccharides. It shows strong endotoxic activity and exhibits immunogenic properties.. lipid A : The glycolipid moiety of bacterial lipopolysaccharide (R can be either hydrogen or a fatty acyl group). | 2.38 | 2 | 0 | dodecanoate ester;
lipid A;
tetradecanoate ester | Escherichia coli metabolite |
aluminum oxide
Aluminum Oxide: An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. | 1.96 | 1 | 0 | | |
desmosine
Desmosine: A rare amino acid found in elastin, formed by condensation of four molecules of lysine into a pyridinium ring. | 1.96 | 1 | 0 | aromatic amino acid | |
piperidines
Piperidines: A family of hexahydropyridines. | 1.98 | 1 | 0 | | |
ascorbic acid
Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms. | 3.09 | 5 | 0 | ascorbic acid;
vitamin C | coenzyme;
cofactor;
flour treatment agent;
food antioxidant;
food colour retention agent;
geroprotector;
plant metabolite;
skin lightening agent |
ascorbate-2-phosphate
ascorbate-2-phosphate: inhibitor of ascorbate-2-sulfate sulfohydrolase from bovine liver. L-ascorbic acid 2-phosphate : An aldonolactone phosphate that is the 2-phosphate ester of L-ascorbic acid. It can stimulate collagen formation. | 2 | 1 | 0 | aldonolactone phosphate | |
epidermal growth factor
Epidermal Growth Factor: A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. | 1.97 | 1 | 0 | | |
angiotensin i
Angiotensin I: A decapeptide that is cleaved from precursor angiotensinogen by RENIN. Angiotensin I has limited biological activity. It is converted to angiotensin II, a potent vasoconstrictor, after the removal of two amino acids at the C-terminal by ANGIOTENSIN CONVERTING ENZYME.. angiotensin I : A ten amino acid peptide formed by renin cleavage of angiotensinogen. Angiotensin I has no direct biological function except that high levels can stimulate catecholamine production. It is metabolized to its biologically active byproduct angiotensin II, a potent vasoconstrictor, by angiotensin converting enzyme (ACE) through cleavage of the two terminal amino acids.. angiotensin I dizwitterion : A peptide zwitterion that is the dizwitterionic form of angiotensin I having both carboxy groups deprotonated and the aspartyl amino group and arginine side-chain protonated. It is the major species at pH 7.3. | 1.96 | 1 | 0 | angiotensin;
peptide zwitterion | human metabolite;
neurotransmitter agent |