Page last updated: 2024-10-24

multicellular organismal response to stress

Definition

Target type: biologicalprocess

Any process that results in a change in state or activity of a multicellular organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating the organism is under stress. The stress is usually, but not necessarily, exogenous (e.g. temperature, humidity, ionizing radiation). [GOC:mah]

Multicellular organismal response to stress is a complex and essential process that allows organisms to survive and adapt to challenging environmental conditions. It involves a coordinated interplay of cellular, physiological, and behavioral responses. Here's a detailed breakdown:

**1. Stress Perception and Signal Transduction:**

- The first step is the detection of a stressful stimulus. This can be anything from physical damage (e.g., heat, cold, toxins) to environmental changes (e.g., nutrient deprivation, pathogens).
- Specialized sensory cells or receptors on the cell surface recognize the stress signal and initiate a cascade of intracellular signaling pathways.
- These pathways often involve protein kinases, phosphatases, and second messengers like calcium ions (Ca2+), cyclic AMP (cAMP), and diacylglycerol (DAG).
- The activation of these pathways ultimately leads to the expression of specific genes that encode stress-responsive proteins.

**2. Cellular and Physiological Responses:**

- **Cellular Stress Response:** Cells can activate various mechanisms to protect themselves from damage, including:
- **Protein Folding and Degradation:** Stress can disrupt protein folding and lead to misfolded or aggregated proteins. The cell responds by increasing the production of chaperones (e.g., heat shock proteins) to aid in proper protein folding and by enhancing proteasomal degradation to remove misfolded proteins.
- **Antioxidant Defense:** Stress can generate reactive oxygen species (ROS) that damage cellular components. The cell counters this by upregulating antioxidant enzymes (e.g., superoxide dismutase, catalase) to neutralize ROS.
- **DNA Repair:** Stress can damage DNA, leading to mutations and cell death. The cell activates DNA repair mechanisms to correct these damages.
- **Physiological Responses:** The whole organism can mount a range of physiological responses, including:
- **Hormonal Regulation:** Stress hormones like cortisol, adrenaline, and norepinephrine are released to mobilize energy reserves, increase heart rate and blood pressure, and suppress non-essential functions.
- **Immune System Activation:** The immune system is mobilized to fight infections and inflammation associated with stress.
- **Metabolic Changes:** The body adjusts its metabolism to conserve energy and prioritize survival functions.

**3. Behavioral Responses:**

- **Escape and Avoidance:** Organisms often exhibit behavioral responses to avoid stressful stimuli. This can involve moving away from a dangerous environment or engaging in behaviors that minimize exposure to stressors.
- **Social Interactions:** Stress can trigger social behaviors like seeking support from others or exhibiting aggressive behaviors to protect resources.
- **Learning and Memory:** Stressful experiences can leave lasting memories that shape future behavior, allowing the organism to avoid similar situations in the future.

**4. Homeostasis and Adaptation:**

- The goal of the stress response is to maintain homeostasis and restore normal cellular and physiological functions.
- If the stress is chronic or severe, the organism may develop adaptations that allow it to tolerate the stress for extended periods.
- These adaptations can be genetic, physiological, or behavioral, and they can have both short-term and long-term consequences.

**5. Stress and Disease:**

- While the stress response is essential for survival, chronic or excessive stress can have negative health consequences.
- It can contribute to a variety of diseases, including cardiovascular disease, diabetes, depression, and anxiety.

**In summary, multicellular organismal response to stress is a highly coordinated and multifaceted process that allows organisms to maintain homeostasis and adapt to challenging environmental conditions. It involves the integration of cellular, physiological, and behavioral responses, and it is essential for survival and well-being.**'"

Proteins (5)

ProteinDefinitionTaxonomy
Serine/threonine-protein phosphatase 2B catalytic subunit alpha isoformA protein phosphatase 3 catalytic subunit alpha that is encoded in the genome of human. [PRO:CNA, UniProtKB:Q08209]Homo sapiens (human)
Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTENA phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN that is encoded in the genome of human. [PRO:PD, UniProtKB:P60484]Homo sapiens (human)
Pituitary adenylate cyclase-activating polypeptide type I receptorA pituitary adenylate cyclase-activating polypeptide type I receptor that is encoded in the genome of human. [PRO:DNx, UniProtKB:P41586]Homo sapiens (human)
Nitric oxide synthase, brainA nitric oxide synthase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P29475]Homo sapiens (human)
Indoleamine 2,3-dioxygenase 1An indoleamine 2,3-dioxygenase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P14902]Homo sapiens (human)

Compounds (136)

CompoundDefinitionClassesRoles
imidazole1H-imidazole : An imidazole tautomer which has the migrating hydrogen at position 1.

imidazole: RN given refers to parent cpd
imidazole
tryptamineaminoalkylindole;
aralkylamino compound;
indole alkaloid;
tryptamines
human metabolite;
mouse metabolite;
plant metabolite
s,s'-1,4-phenylene-bis(1,2-ethanediyl)bis-isothioureaS,S'-1,4-phenylene-bis(1,2-ethanediyl)bis-isothiourea: structure in first source
n-(3-(aminomethyl)benzyl)acetamidineN-(3-(aminomethyl)benzyl)acetamidine: structure in first source

N-[3-(aminomethyl)benzyl]acetamidine : An aralkylamine that is Nbenzylacetamidine substituted at position 3 on the benzene ring by an aminomethyl group. An inhibitor of nitric oxide synthase.
aralkylamine;
carboxamidine;
primary amino compound
angiogenesis inhibitor;
EC 1.14.13.39 (nitric oxide synthase) inhibitor;
geroprotector
2-amino-4-picoline2-amino-4-picoline: RN given refers to parent cpd
3-bromo-7-nitroindazole
7-nitroindazole7-nitroindazole: an inhibitor of nitric oxide synthase; exhibits anti-nociceptive activity without increasing blood pressure
oxyquinolineOxyquinoline: An antiseptic with mild fungistatic, bacteriostatic, anthelmintic, and amebicidal action. It is also used as a reagent and metal chelator, as a carrier for radio-indium for diagnostic purposes, and its halogenated derivatives are used in addition as topical anti-infective agents and oral antiamebics.

quinolin-8-ol : A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes.
monohydroxyquinolineantibacterial agent;
antifungal agrochemical;
antiseptic drug;
iron chelator
beta-aminoethyl isothioureabeta-Aminoethyl Isothiourea: A radiation-protective agent that can inhibit DNA damage by binding to the DNA. It also increases the susceptibility of blood cells to complement-mediated lysis.
pimagedineaminoguanidine : A one-carbon compound whose unique structure renders it capable of acting as a derivative of hydrazine, guanidine or formamide.

pimagedine: diamine oxidase & nitric oxide synthase inhibitor; an advanced glycosylation end product inhibitor; used in the treatment of diabetic complications; structure
guanidines;
one-carbon compound
EC 1.14.13.39 (nitric oxide synthase) inhibitor;
EC 1.4.3.4 (monoamine oxidase) inhibitor
2-aminothiazole1,3-thiazol-2-amine : A primary amino compound that is 1,3-thiazole substituted by an amino group at position 2.

2-aminothiazole: RN given refers to parent cpd; structure
1,3-thiazoles;
primary amino compound
bay h 45021-[biphenyl-4-yl(phenyl)methyl]imidazole : A member of the class of imidazoles carrying an alpha-(biphenyl-4-yl)benzyl substituent at position 1.

bifonazole : A racemate comprising equimolar amounts of R- and S-bifonazole. It is a broad spectrum antifungal drug used for the treatment of fungal skin and nail infections.
biphenyls;
imidazoles
dichlorophenDichlorophen: Nontoxic laxative vermicide effective for taenia infestation. It tends to produce colic and nausea. It is also used as a veterinary fungicide, anthelmintic, and antiprotozoan. (From Merck, 11th ed.)bridged diphenyl fungicide;
diarylmethane
benzophenonebenzophenone : The simplest member of the class of benzophenones, being formaldehyde in which both hydrogens are replaced by phenyl groups.benzophenonesphotosensitizing agent;
plant metabolite
ebselenebselen : A benzoselenazole that is 1,2-benzoselenazol-3-one carrying an additional phenyl substituent at position 2. Acts as a mimic of glutathione peroxidase.benzoselenazoleanti-inflammatory drug;
antibacterial agent;
anticoronaviral agent;
antifungal agent;
antineoplastic agent;
antioxidant;
apoptosis inducer;
EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor;
EC 1.3.1.8 [acyl-CoA dehydrogenase (NADP(+))] inhibitor;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor;
EC 2.5.1.7 (UDP-N-acetylglucosamine 1-carboxyvinyltransferase) inhibitor;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
EC 3.1.3.25 (inositol-phosphate phosphatase) inhibitor;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
EC 3.5.4.1 (cytosine deaminase) inhibitor;
EC 5.1.3.2 (UDP-glucose 4-epimerase) inhibitor;
enzyme mimic;
ferroptosis inhibitor;
genotoxin;
hepatoprotective agent;
neuroprotective agent;
radical scavenger
econazole1-{2-(4-chlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 4-chlorobenzyl group.

econazole : A racemate composed of equimolar amounts of (R)- and (S)-econazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections.

Econazole: An imidazole derivative that is commonly used as a topical antifungal agent.
dichlorobenzene;
ether;
imidazoles;
monochlorobenzenes
s-ethyl n-(4-(trifluoromethyl)phenyl)isothioureaS-ethyl N-(4-(trifluoromethyl)phenyl)isothiourea: structure in first source
phenelzinePhenelzine: One of the MONOAMINE OXIDASE INHIBITORS used to treat DEPRESSION; PHOBIC DISORDERS; and PANIC.primary amine
isoconazole1-{2-[(2,6-dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that carries a 2-[(2,6-dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl group at position 1.

isoconazole : A racemate comprising equimolar amounts of (R)- and (S)-isoconazole. A broad-spectrum antibacterial drug used (as its nitrate salt) for treatment of dermatomycoses.
dichlorobenzene;
ether;
imidazoles
juglonejuglone : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogen at position 5 has been replaced by a hydroxy group. A plant-derived 1,4-naphthoquinone with confirmed antibacterial and antitumor activities.

juglone: structure
hydroxy-1,4-naphthoquinonegeroprotector;
herbicide;
reactive oxygen species generator
ketoconazole1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively.dichlorobenzene;
dioxolane;
ether;
imidazoles;
N-acylpiperazine;
N-arylpiperazine
beta-lapachonebeta-lapachone : A benzochromenone that is 3,4-dihydro-2H-benzo[h]chromene-5,6-dione substituted by geminal methyl groups at position 2. Isolated from Tabebuia avellanedae, it exhibits antineoplastic and anti-inflammatory activities.

beta-lapachone: antineoplastic inhibitor of reverse transcriptase, DNA topoisomerase, and DNA polymerase
benzochromenone;
orthoquinones
anti-inflammatory agent;
antineoplastic agent;
plant metabolite
vitamin k 3Vitamin K 3: A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.1,4-naphthoquinones;
vitamin K
angiogenesis inhibitor;
antineoplastic agent;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
human urinary metabolite;
nutraceutical
miconazole1-[2-(2,4-dichlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl]imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 2,4-dichlorobenzyl group.

miconazole : A racemate composed of equimolar amounts of (R)- and (S)-miconazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections. It inhibits the synthesis of ergosterol, a critical component of fungal cell membranes.

Miconazole: An imidazole antifungal agent that is used topically and by intravenous infusion.
dichlorobenzene;
ether;
imidazoles
etironetiron: a nitric oxide synthase inhibitor; RN given refers to parent cpd; structure
s-methylisothiopseudouroniumS-methylisothiopseudouronium: inhibits nitric oxide synthase; structure in first source
sulconazole1-{2-[(4-chlorobenzyl)sulfanyl]-2-(2,4-dichlorophenyl)ethyl}-1H-imidazole : A member of the class of imidazoles that is 1-ethyl-1H-imidazole in which one of the hydrogens of the methyl group is replaced by a (4-chlorobenzyl)sulfanediyl group while a second is replaced by a 2,4-dichlorophenyl group.

sulconazole : A racemate comprising equimolar amounts of (R)- and (S)-sulconazole. An antifungal agent with activity against Candida species, it is used (generally as the nitrate salt) for the topical treatment of fungal skin infections.

sulconazole: RN given refers to cpd with unspecified isomeric designation; structure given in first source
dichlorobenzene;
imidazoles;
monochlorobenzenes;
organic sulfide
mitomycinmitomycin : A family of aziridine-containing natural products isolated from Streptomyces caespitosus or Streptomyces lavendulae.

Mitomycin: An antineoplastic antibiotic produced by Streptomyces caespitosus. It is one of the bi- or tri-functional ALKYLATING AGENTS causing cross-linking of DNA and inhibition of DNA synthesis.
mitomycinalkylating agent;
antineoplastic agent
tryptophantryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.

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.
erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid;
L-alpha-amino acid zwitterion;
proteinogenic amino acid;
tryptophan;
tryptophan zwitterion
antidepressant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite
argininearginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group.

Arginine: An essential amino acid that is physiologically active in the L-form.
arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid
biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical
lawsonelawsone : 1,4-Naphthoquinone carrying a hydroxy function at C-2. It is obtained from the leaves of Lawsonia inermis.

lawsone: a molluscacide from leaves of Lawsonia inermis L. topical sunscreening agent; structure; powdered leaves of Lawsonia inermis(Lythraceae) used as brown hair dye
3-hydroxy-2-naphthoic acid3-hydroxy-2-naphthoic acid: RN given refers to parent cpdnaphthoic acid
benzotriazolebenzotriazole : The simplest member of the class of benzotriazoles that consists of a benzene nucleus fused to a 1H-1,2,3-triazole ring.

benzotriazole: inhibitor of atmospheric metal corrosion; also component of motion picture film & Neva brake fluid
benzotriazolesenvironmental contaminant;
xenobiotic
benzothiazolebenzothiazole : An organic heterobicyclic compound that is a fusion product between benzene and thiazole. The parent of the class of benzothiazoles.

benzothiazole: structure
benzothiazolesenvironmental contaminant;
plant metabolite;
xenobiotic
phenylhydrazinephenylhydrazinesxenobiotic
phenylhydroxylamineN-phenylhydroxylamine : An N-substituted amine that is a derivative of aniline in which one of the amino hydrogen atoms is replaced with a hydroxy substituent.

phenylhydroxylamine: RN given refers to parent cpd
N-substituted amine
4-aminodiphenylamine4-aminodiphenylamine: RN given refers to parent cpd

p-aminodiphenylamine : An aromatic amine that is the 4-amino derivative of diphenylamine.
aromatic amine;
secondary amino compound
allergen
4-chloroaniline4-chloroaniline : A chloroaniline in which the chloro atom is para to the aniline amino group.

4-chloroaniline: RN given refers to parent cpd; structure
chloroaniline;
monochlorobenzenes
dichlonedichlone: structure
dibenzothiazyl disulfidedibenzothiazol-2-yl disulfide : An organic disulfide resulting from the formal oxidative coupling of the thiol groups of two molecules of 1,3-benzothiazole-2-thiol. It is used as an accelerator in the rubber industry.

dibenzothiazyl disulfide: vulcanizing accelerant
benzothiazoles;
organic disulfide
allergen
1,4-naphthoquinone1,4-naphthoquinone : The parent structure of the family of 1,4-naphthoquinones, in which the oxo groups of the quinone moiety are at positions 1 and 4 of the naphthalene ring. Derivatives have pharmacological properties.

naphthoquinone : A polycyclic aromatic ketone metabolite of naphthalene.
1,4-naphthoquinones
indazolesIndazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES.indazole
citrullinecitrulline : The parent compound of the citrulline class consisting of ornithine having a carbamoyl group at the N(5)-position.amino acid zwitterion;
citrulline
Daphnia magna metabolite;
EC 1.14.13.39 (nitric oxide synthase) inhibitor;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
protective agent;
Saccharomyces cerevisiae metabolite
9-fluorenonefluoren-9-one : The simplest member of the class fluoren-9-ones that is 9H-fluorene bearing an oxo substituent at position 9.fluoren-9-onesfungal xenobiotic metabolite
benzohydroxamic acid
alpha-aminopyridinealpha-aminopyridine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #485

aminopyridine : Compounds containing a pyridine skeleton substituted by one or more amine groups.
1,2-naphthoquinone1,2-naphthoquinone : The parent structure of the family of 1,2-naphthoquinones, in which the oxo groups of the quinone moiety are at positions 1 and 2 of the naphthalene ring. It is a metabolite of naphthalene and is found in diesel exhaust particles.

naphthalene-1,2-dione: structure given in first source
1,2-naphthoquinonesaryl hydrocarbon receptor agonist;
carcinogenic agent
benzylhydrazinebenzylhydrazine: RN given refers to parent cpd
1,4-naphthohydroquinonenaphthohydroquinone : A hydroxynaphthalene that is naphthalene-1,4-diol and its C-substituted derivatives.naphthalenediol;
naphthohydroquinone
2-hydrazinobenzothiazole
3-phenylpyridine
2-amino-3-methylpyridine2-amino-3-methylpyridine: structure in first source
2-aminothiazoline2-aminothiazoline: RN given refers to parent cpd; structure in first source & in Negwer, 5th ed, #97

4,5-dihydro-1,3-thiazol-2-amine : A 1,3-thiazole that is 4,5-dihydro-1,3-thiazole substituted by an amino group at position 2.
1,3-thiazoles;
primary amino compound
2-methoxy-1,4-naphthoquinone2-methoxy-1,4-naphthoquinone : A naphthoquinone that is naphthalene-1,4-dione substituted by a methoxy group at position 2. It has been isolated from the roots of Rubia yunnanensis.

2-methoxy-1,4-naphthoquinone: isolated from Swertia calycina; structure in first source
1,4-naphthoquinones;
enol ether
antimicrobial agent;
metabolite;
plant metabolite
5-nitroindazole
6,7-Dimethyl-9-(2-acetoxyethyl)isoalloxazineflavin
6-nitroindazole
1-(2-(2,4-dichlorophenyl)-2-hydroxyethyl)-1h-imidazole1-(2-(2,4-dichlorophenyl)-2-hydroxyethyl)-1H-imidazole: RN given refers to parent cpd; structure given in first source; principal transformation product of imazalil
enilconazole1-[2-(allyloxy)-2-(2,4-dichlorophenyl)ethyl]imidazole : A member of the class of imidazoles in which the hydrogen at position 1 is replaced by a 2-(allyloxy)-2-(2,4-dichlorophenyl)ethyl group.

enilconazole : A racemate comprising equimolar amounts of (R)- and (S)-enilconazole. A fungicide used to control a wide range of fungi including Tilletia and Helminthosporium spp. on fruit, vegetables and ornamentals. In veterinary medicine, it is used topically for the treatment of fungal skin infections in cattle, dogs, and horses; it is also used by inhalation for the treatment of aspergillosis in ostriches.

enilconazole: RN given refers to parent cpd
dichlorobenzene;
ether;
imidazoles
ng-nitroarginine methyl esterNG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension.alpha-amino acid ester;
L-arginine derivative;
methyl ester;
N-nitro compound
EC 1.14.13.39 (nitric oxide synthase) inhibitor
phenthiazaminephenthiazamine: RN given refers to parent cpd
chaetochrominchaetochromin: from Chaetomium spp.; RN given refers to chaetochromin A
n-(4-nitrophenacyl)imidazoleN-(4-nitrophenacyl)imidazole: structure in first source
norharmanbeta-carboline : The parent compound of the beta-carbolines, a tricyclic structure comprising an indole ring system ortho- fused to C-3 and C-4 of a pyridine ring.

norharman: RN given refers to parent cpd
beta-carbolines;
mancude organic heterotricyclic parent
fungal metabolite;
marine metabolite
sertaconazole1-{2-[(7-chloro-1-benzothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that carries a 2-[(7-chloro-1-benzothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl group at position 1.

sertaconazole : A racemate comprising equimolar amounts of (R)- and (S)-sertaconazole. A broad spectrum antifungal with added antipruritic and anti-inflammatory activity used (as its nitrate salt) for treatment of various skin infections.
1-benzothiophenes;
dichlorobenzene;
ether;
imidazoles
4-chlorophenethylamine4-chlorophenethylamine: RN given refers to parent cpd
harmolharmol: harmol is oxidized form of alkaloid harmolol; RN given refers to parent cpd; structureharmala alkaloid
4(5)-phenylimidazole4(5)-phenylimidazole: tautomeric cpd; cytochrome P450 14alpha-sterol demethylase, CYP51 antagonist
alpha-lapachonealpha-lapachone: structure in first sourceorganic heterotricyclic compound;
organooxygen compound
xyloidone
chrysomycin achrysomycin A: Streptomyces arenae; differs only in sugar moiety from gilvocarcin Vglycoside
tryptanthrinetryptanthrine: minor constituent of traditional Chinese medicine qing daialkaloid antibiotic;
organic heterotetracyclic compound;
organonitrogen heterocyclic compound
1-aminoisoquinoline
fluoren-9-olfluoren-9-ol : A member of the class of hydroxyfluorenes that is 9H-fluorene substituted by a hydroxy group at position 9 (the non-aromatic carbon).hydroxyfluorenes;
secondary alcohol
animal metabolite
2-phenylisatogen2-phenylisatogen: inhibitor of mitochondrial oxidative phosphorylation; structure
4-nitrobenzyloxyamine4-nitrobenzyloxyamine: RN given refers to HCl; RN for parent cpd not in Chemline 8/1/83; structure given in first source
4-(2-thiazolylazo)resorcinol4-(2-thiazolylazo)resorcinol: sensitive indicator for metals
6-aminoindazole6-aminoindazole: depresses gastric acid secretion; structure given in first sourceindazoles
1-phenylimidazole1-phenylimidazole: ligand for cytochrome P-450 & inhibitor of microsomal oxidation
3-indazolinone3-indazolinone: structure given in first source
5-aminoindazole
3,5-dimethylpyrazole-1-carboxamidine3,5-dimethylpyrazole-1-carboxamidine: guanidinating reagent for proteins; RN given refers to parent cpd
1-methyltryptophannon-proteinogenic alpha-amino acid;
tryptophan derivative
antineoplastic agent;
EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor
2-phenylindolone
benzyloxyaminebenzyloxyamine: RN given refers to parent cpd
4-hydroxycarbazole4-hydroxycarbazole: structure in first source
s-methylthiocitrullineS-methyl-L-thiocitrulline : An L-arginine derivative in which the guanidino NH2 group of L-arginine is replaced by a methylsufanyl group.

S-methylthiocitrulline: a nitric oxide synthase inhibitor; structure in first source
imidothiocarbamic ester;
L-arginine derivative;
L-ornithine derivative;
non-proteinogenic L-alpha-amino acid
EC 1.14.13.39 (nitric oxide synthase) inhibitor;
neuroprotective agent
n(g)-iminoethylornithineL-alpha-amino acid
cinnabarinic acidcinnabarinic acid: structurephenoxazine
celastrolmonocarboxylic acid;
pentacyclic triterpenoid
anti-inflammatory drug;
antineoplastic agent;
antioxidant;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
Hsp90 inhibitor;
metabolite
n,n-dimethylarginineN,N-dimethylarginine: asymmetric dimethylarginine; do not confuse with N,N'-dimethylarginine

N(omega),N(omega)-dimethyl-L-arginine : A L-arginine derivative having two methyl groups both attached to the primary amino moiety of the guanidino group.
dimethylarginine;
guanidines;
L-arginine derivative;
non-proteinogenic L-alpha-amino acid
EC 1.14.13.39 (nitric oxide synthase) inhibitor
omega-n-methylarginineN(omega)-methyl-L-arginine : A L-arginine derivative with a N(omega)-methyl substituent.

omega-N-Methylarginine: A competitive inhibitor of nitric oxide synthetase.
amino acid zwitterion;
arginine derivative;
guanidines;
L-arginine derivative;
non-proteinogenic L-alpha-amino acid
ng-nitroarginine methyl esterN(gamma)-nitro-L-arginine methyl ester hydrochloride : A hydrochloride obtained by combining N(gamma)-nitro-L-arginine methyl ester with one equivalent of hydrochloric acid.hydrochlorideEC 1.14.13.39 (nitric oxide synthase) inhibitor
cryptotanshinonecryptotanshinone: from Salvia miltiorrhizaabietane diterpenoidanticoronaviral agent
tanshinone ii atashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first sourceabietane diterpenoid
delta-n-methylarginineN(5)-methyl-L-arginine : A non-proteinogenic L-alpha-amino acid that is L-arginine substituted by a methyl group at N(5)-position.guanidines;
L-arginine derivative;
non-proteinogenic L-alpha-amino acid
2-amino-5,6-dihydro-4h-1,3-thiazine2-amino-5,6-dihydro-4H-1,3-thiazine: RN given refers to parent cpd
nsc 36398NSC 36398: structure in first source
Porfiromycinemitomycin
6,11-dioxo-12-naphtho[2,3-b]indolizinecarboxylic acid ethyl esternaphthalenes
nsc228155
2-amino-5-methylthiazole2-amino-5-methylthiazole: binds the W191G cavity of E coli cytochrome c peroxidase
3-(1h-indol-3-yl)pyrrolidine-2,5-dione3-(1H-indol-3-yl)pyrrolidine-2,5-dione: structure in first source
indoximod
5-amino-8-hydroxyquinoline5-amino-8-hydroxyquinoline: structure in first source
5-hydroxytryptophan5-hydroxy-L-tryptophan : The L-enantiomer of 5-hydroxytryptophan.

hydroxytryptophan : A hydroxy-amino acid that is tryptophan substituted by at least one hydroxy group at unspecified position.
5-hydroxytryptophan;
amino acid zwitterion;
hydroxy-L-tryptophan;
non-proteinogenic L-alpha-amino acid
human metabolite;
mouse metabolite;
plant metabolite
nitroarginineN(gamma)-nitro-L-arginine : An L-arginine derivative that is L-arginine in which the terminal nitrogen of the guanidyl group is replaced by a nitro group.

Nitroarginine: An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6)
guanidines;
L-arginine derivative;
N-nitro compound;
non-proteinogenic L-alpha-amino acid
tacrolimustacrolimus (anhydrous) : A macrolide lactam containing a 23-membered lactone ring, originally isolated from the fermentation broth of a Japanese soil sample that contained the bacteria Streptomyces tsukubaensis.

Tacrolimus: A macrolide isolated from the culture broth of a strain of Streptomyces tsukubaensis that has strong immunosuppressive activity in vivo and prevents the activation of T-lymphocytes in response to antigenic or mitogenic stimulation in vitro.
macrolide lactambacterial metabolite;
immunosuppressive agent
vinyl-l-nio
arl 17477
benzyloxycarbonylleucyl-leucyl-leucine aldehydebenzyloxycarbonylleucyl-leucyl-leucine aldehyde: proteasome inhibitor

N-benzyloxycarbonyl-L-leucyl-L-leucyl-L-leucinal : A tripeptide that is L-leucyl-L-leucyl-L-leucine in which the C-terminal carboxy group has been reduced to the corresponding aldehyde and the N-terminal amino group is protected as its benzyloxycarbonyl derivative.
amino aldehyde;
carbamate ester;
tripeptide
proteasome inhibitor
2-(3-Chloro-2-fluorophenyl)-2,3-dihydroisothiazol-3-oneorganofluorine compound
tenatoprazoleTenatoprazole: structure in first sourceimidazopyridine
1-methyltryptophan1-methyltryptophan : A tryptophan derivative that is tryptophan carrying a single methyl substituent at position 1 on the indole.

1-methyltryptophan: an immunomodulator
indolyl carboxylic acid
captax1,3-benzothiazole-2-thiol : 1,3-Benzothiazole substituted at the 2-position with a sulfanyl group.

captax: RN given refers to parent cpd
aryl thiol;
benzothiazoles
carcinogenic agent;
metabolite
4-(3-chlorophenyl)thiosemicarbazide4-(3-chlorophenyl)thiosemicarbazide: structure given in first source
N-(2-chlorophenyl)hydrazine-1-carbothioamideorganochlorine compound
n(6)-(1-iminoethyl)lysineN(6)-acetimidoyl-L-lysine : An L-lysine derivative that is L-lysine in which one of the hydrogens attached to N(6) is substituted by an acetimidoyl groupL-lysine derivative;
non-proteinogenic L-alpha-amino acid
tamoxifenstilbenoid;
tertiary amino compound
angiogenesis inhibitor;
antineoplastic agent;
bone density conservation agent;
EC 1.2.3.1 (aldehyde oxidase) inhibitor;
EC 2.7.11.13 (protein kinase C) inhibitor;
estrogen antagonist;
estrogen receptor antagonist;
estrogen receptor modulator
pyrazole-1-carboxamidinepyrazole-1-carboxamidine: structure given in first source
1-(4-hydroxyphenyl)-3-(3-methoxyphenyl)thioureathioureas
methyl-thiohydantoin-tryptophanmethyl-thiohydantoin-tryptophan: structure in first sourceorganonitrogen compound;
organooxygen compound
4-phenyl-3H-thiazole-2-thionebenzenes
brassinindithiocarbamic ester;
indole phytoalexin
ethyl 4-(3-oxo-2,3-dihydroisothiazol-2-yl)benzoateorganic molecular entity
cyclosporineramihyphin A: one of the metabolites produced by Fusarium sp. S-435; RN given refers to cpd with unknown MFhomodetic cyclic peptideanti-asthmatic drug;
anticoronaviral agent;
antifungal agent;
antirheumatic drug;
carcinogenic agent;
dermatologic drug;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
geroprotector;
immunosuppressive agent;
metabolite
oxiconazoleoxiconazole : An oxime O-ether that is the 2,4-dichlorobenzyl ether of the oxime obtained by formal condensation of hydroxylamine with the carbonyl group of acetopnenone in which the phenyl group is substituted by chlorines at positions 2 and 4, and in which one of the hydrogens of the methyl group is replaced by a 1H-imidazol-1-yl group. An antifungal agent, it is used (generally as the nitrate salt) in creams and powders for the topical treatment of fungal skin infections.

oxiconazole: RN given refers to parent cpd(Z)-isomer; structure given in first source
conazole antifungal drug;
dichlorobenzene;
imidazole antifungal drug;
imidazoles;
oxime O-ether
antiinfective agent
gw 274150
680c91680C91 : A fluoroindole that is 6-fluoroindole in which the hydrogen at position 3 has been replaced by a 2-(pyridin-3-yl)vinyl group (trans configuration). It is a selective inhibitor of tryptophan 2,3-dioxygenase (TDO), which directs the conversion of trypophan to kynurenin.fluoroindole;
olefinic compound;
pyridines
EC 1.13.11.11 (tryptophan 2,3-dioxygenase) inhibitor
beta-3-oxindolylalaninebeta-3-oxindolylalanine: main intermediate in tryptophan degration occurring in acid hydrolysis of protein
trans-avicennoltrans-avicennol: from Zanthoxylum chiloperone var. angustifolium; structure in first source
pituitary adenylate cyclase activating polypeptide 38
1-(4-(3-bromophenoxy)butyl)-1h-imidazole1-(4-(3-bromophenoxy)butyl)-1H-imidazole: structure in first source
stf 083010STF 083010: inhibits Ire1 endonuclease; structure in first source
sapropterin(6R)-5,6,7,8-tetrahydrobiopterin : A 5,6,7,8-tetrahydrobiopterin in which the stereocentre at position 6 has R-configuration.

sapropterin : A tetrahydropterin that is 2-amino-5,6,7,8-tetrahydropteridin-4(3H)-one in which a hydrogen at position 6 is substituted by a 1,2-dihydroxypropyl group (6R,1'R,2'S-enantiomer).

sapropterin: RN given refers to parent cpd; co-factor required for catalytic activity of nitric oxide synthases
5,6,7,8-tetrahydrobiopterincoenzyme;
cofactor;
diagnostic agent;
human metabolite
6-hydroxymethylpterin