| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
chlorine
chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 2.01 | 1 | 0 | halide anion;
monoatomic chlorine | cofactor;
Escherichia coli metabolite;
human metabolite |
glycine
[no description available] | 2.71 | 3 | 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 |
putrescine
[no description available] | 2.01 | 1 | 0 | alkane-alpha,omega-diamine | antioxidant;
fundamental metabolite |
spermidine
[no description available] | 2.69 | 3 | 0 | polyazaalkane;
triamine | autophagy inducer;
fundamental metabolite;
geroprotector |
spermine
[no description available] | 2.7 | 3 | 0 | polyazaalkane;
tetramine | antioxidant;
fundamental metabolite;
immunosuppressive agent |
2-amino-5-phosphonovalerate
2-Amino-5-phosphonovalerate: The D-enantiomer is a potent and specific antagonist of NMDA glutamate receptors (RECEPTORS, N-METHYL-D-ASPARTATE). The L form is inactive at NMDA receptors but may affect the AP4 (2-amino-4-phosphonobutyrate; APB) excitatory amino acid receptors. | 2.01 | 1 | 0 | non-proteinogenic alpha-amino acid | NMDA receptor antagonist |
alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid
alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid: An IBOTENIC ACID homolog and glutamate agonist. The compound is the defining agonist for the AMPA subtype of glutamate receptors (RECEPTORS, AMPA). It has been used as a radionuclide imaging agent but is more commonly used as an experimental tool in cell biological studies. | 3.09 | 5 | 0 | non-proteinogenic alpha-amino acid | |
ibotenic acid
Ibotenic Acid: A neurotoxic isoxazole (similar to KAINIC ACID and MUSCIMOL) found in AMANITA mushrooms. It causes motor depression, ataxia, and changes in mood, perceptions and feelings, and is a potent excitatory amino acid agonist. | 2.38 | 2 | 0 | non-proteinogenic alpha-amino acid | neurotoxin |
aniracetam
[no description available] | 2.05 | 1 | 0 | N-acylpyrrolidine;
pyrrolidin-2-ones | |
cyclothiazide
cyclothiazide: inhibits the desensitization of AMPA-type receptors; structure. cyclothiazide : 3,4-Dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide substituted at positions 3, 5 and 6 by a 2-norbornen-5-yl group, chlorine, and a sulfonamide group, respectively. A thiazide diuretic, it has been used in the management of hypertension and oedema. | 2.05 | 1 | 0 | benzothiadiazine | antihypertensive agent;
diuretic |
desipramine
Desipramine: A tricyclic dibenzazepine compound that potentiates neurotransmission. Desipramine selectively blocks reuptake of norepinephrine from the neural synapse, and also appears to impair serotonin transport. This compound also possesses minor anticholinergic activity, through its affinity to muscarinic receptors.. desipramine : A dibenzoazepine consisting of 10,11-dihydro-5H-dibenzo[b,f]azepine substituted on nitrogen with a 3-(methylamino)propyl group. | 1.98 | 1 | 0 | dibenzoazepine;
secondary amino compound | adrenergic uptake inhibitor;
alpha-adrenergic antagonist;
antidepressant;
cholinergic antagonist;
drug allergen;
EC 3.1.4.12 (sphingomyelin phosphodiesterase) inhibitor;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor;
H1-receptor antagonist;
serotonin uptake inhibitor |
ifenprodil
ifenprodil: NMDA receptor antagonist | 2.01 | 1 | 0 | piperidines | |
memantine
[no description available] | 2.07 | 1 | 0 | adamantanes;
primary aliphatic amine | antidepressant;
antiparkinson drug;
dopaminergic agent;
neuroprotective agent;
NMDA receptor antagonist |
serine
Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.02 | 1 | 0 | L-alpha-amino acid;
proteinogenic amino acid;
serine family amino acid;
serine zwitterion;
serine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
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. | 3.29 | 6 | 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 |
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 |
asparagine
Asparagine: A non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). asparagine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group. | 1.97 | 1 | 0 | amino acid zwitterion;
asparagine;
aspartate family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite |
valine
Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine. | 2.01 | 1 | 0 | L-alpha-amino acid zwitterion;
L-alpha-amino acid;
proteinogenic amino acid;
pyruvate family amino acid;
valine | algal metabolite;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
quinoxalines
quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2.38 | 2 | 0 | mancude organic heterobicyclic parent;
naphthyridine;
ortho-fused heteroarene | |
adamantane
Adamantane: A tricyclo bridged hydrocarbon. | 1.99 | 1 | 0 | adamantanes;
polycyclic alkane | |
kainic acid
Kainic Acid: (2S-(2 alpha,3 beta,4 beta))-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid. Ascaricide obtained from the red alga Digenea simplex. It is a potent excitatory amino acid agonist at some types of excitatory amino acid receptors and has been used to discriminate among receptor types. Like many excitatory amino acid agonists it can cause neurotoxicity and has been used experimentally for that purpose. | 3.09 | 5 | 0 | dicarboxylic acid;
L-proline derivative;
non-proteinogenic L-alpha-amino acid;
pyrrolidinecarboxylic acid | antinematodal drug;
excitatory amino acid agonist |
n-methylaspartate
N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration. | 3.5 | 8 | 0 | amino dicarboxylic acid;
D-alpha-amino acid;
D-aspartic acid derivative;
secondary amino compound | neurotransmitter agent |
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. | 2.92 | 4 | 0 | glutamic acid;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | Escherichia coli metabolite;
ferroptosis inducer;
micronutrient;
mouse metabolite;
neurotransmitter;
nutraceutical |
eliprodil
1-(4-chlorophenyl)-2-[4-(4-fluorobenzyl)piperidin-1-yl]ethanol : A member of the class of piperidines that is piperidine substituted by a 2-(4-chlorophenyl)-2-hydroxyethyl group at position 1 and by a 4-fluorobenzyl group at position 4. | 1.98 | 1 | 0 | monochlorobenzenes;
monofluorobenzenes;
piperidines;
secondary alcohol;
tertiary amino compound | |
2,4-dihydroxyphenylacetic acid
[no description available] | 1.97 | 1 | 0 | | |
methoctramine
methoctramine: structure given in first source. methoctramine : A tetramine that is N,N'-bis(6-aminohexyl)octane-1,8-diamine where the primary amino groups both carry 2-methoxybenzyl substituents.. methoctramine tetrahydrochloride : A hydrochloride obtained by combining methoctramine with four molar equivalents of hydrochloric acid. | 2.07 | 1 | 0 | hydrochloride | muscarinic antagonist |
2-(2,3-dicarboxycyclopropyl)glycine
[no description available] | 2.01 | 1 | 0 | | |
delta-philanthotoxin
delta-philanthotoxin: from wasp Philanthus triangulum; blocks transmission postsynaptically at excitory synapses | 3.25 | 6 | 0 | | |
jstx-3
JSTX-3: structure in first source | 2.05 | 1 | 0 | N-acyl-amino acid | |
argiotoxin-636
argiotoxin-636: from the venom of Argiope aurantia; blocks neuromuscular transmission in insects; structure in first source. | 3.37 | 7 | 0 | N-acyl-amino acid | |
5-fluorowillardiine
5-fluorowillardiine: a glutamate agonist; RN given for (S)-isomer. 3-(5-fluorouracil-1-yl)-L-alanine : An alanine derivative that is L-alanine bearing a 5-fluorouracil-1-yl substituent at position 3. A more potent and selective AMPA receptor agonist (at hGluR1 and hGluR2) than AMPA itself (Ki = 14.7, 25.1, and 1820 nM for hGluR1, hGluR2 and hGluR5 respectively). | 2.05 | 1 | 0 | L-alanine derivative;
non-proteinogenic L-alpha-amino acid;
organofluorine compound | AMPA receptor agonist |
gyki 53655
GYKI 53655: an AMPA (alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate) receptor antagonist | 2.05 | 1 | 0 | | |
cocaine
Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. | 2 | 1 | 0 | benzoate ester;
methyl ester;
tertiary amino compound;
tropane alkaloid | adrenergic uptake inhibitor;
central nervous system stimulant;
dopamine uptake inhibitor;
environmental contaminant;
local anaesthetic;
mouse metabolite;
plant metabolite;
serotonin uptake inhibitor;
sodium channel blocker;
sympathomimetic agent;
vasoconstrictor agent;
xenobiotic |
4-bromohomoibotenic acid, (rs)-isomer
[no description available] | 2.05 | 1 | 0 | | |
2,3-dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline
2,3-dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline: structure given in first source; neuroprotectant for cerebral ischemia; AMPA receptor antagonist | 2.05 | 1 | 0 | naphthalenes;
sulfonic acid derivative | |
6-cyano-7-nitroquinoxaline-2,3-dione
6-Cyano-7-nitroquinoxaline-2,3-dione: A potent excitatory amino acid antagonist with a preference for non-NMDA iontropic receptors. It is used primarily as a research tool. | 2.38 | 2 | 0 | quinoxaline derivative | |
dextromethorphan
Dextromethorphan: Methyl analog of DEXTRORPHAN that shows high affinity binding to several regions of the brain, including the medullary cough center. This compound is an NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker. It is one of the widely used ANTITUSSIVES, and is also used to study the involvement of glutamate receptors in neurotoxicity.. dextromethorphan : A 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene in which the sterocenters at positions 4a, 10 and 10a have S-configuration. It is a prodrug of dextrorphan and used as an antitussive drug for suppressing cough. | 1.98 | 1 | 0 | 6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene | antitussive;
environmental contaminant;
neurotoxin;
NMDA receptor antagonist;
oneirogen;
prodrug;
xenobiotic |
tetrodotoxin
Tetrodotoxin: An aminoperhydroquinazoline poison found mainly in the liver and ovaries of fishes in the order TETRAODONTIFORMES, which are eaten. The toxin causes paresthesia and paralysis through interference with neuromuscular conduction.. tetrodotoxin : A quinazoline alkaloid that is a marine toxin isolated from fish such as puffer fish. It has been shown to exhibit potential neutotoxicity due to its ability to block voltage-gated sodium channels. | 1.98 | 1 | 0 | azatetracycloalkane;
oxatetracycloalkane;
quinazoline alkaloid | animal metabolite;
bacterial metabolite;
marine metabolite;
neurotoxin;
voltage-gated sodium channel blocker |
dizocilpine maleate
Dizocilpine Maleate: A potent noncompetitive antagonist of the NMDA receptor (RECEPTORS, N-METHYL-D-ASPARTATE) used mainly as a research tool. The drug has been considered for the wide variety of neurodegenerative conditions or disorders in which NMDA receptors may play an important role. Its use has been primarily limited to animal and tissue experiments because of its psychotropic effects.. dizocilpine maleate : A maleate salt obtained by reaction of dizocilpine with one equivalent of maleic acid. | 2.07 | 1 | 0 | maleate salt;
tetracyclic antidepressant | anaesthetic;
anticonvulsant;
neuroprotective agent;
nicotinic antagonist;
NMDA receptor antagonist |
4-(2-(phenylsulfonylamino)ethylthio)-2,6-difluorophenoxyacetamide
4-(2-(phenylsulfonylamino)ethylthio)-2,6-difluorophenoxyacetamide: structure given in first source | 2.05 | 1 | 0 | | |
iem 1754
IEM 1754: structure given in first source | 1.99 | 1 | 0 | | |
piperidines
Piperidines: A family of hexahydropyridines. | 2.4 | 2 | 0 | | |