Target type: molecularfunction
Catalysis of the reaction: L-tryptophan + O2 = N-formyl-L-kynurenine. [EC:1.13.11.11]
Tryptophan 2,3-dioxygenase activity is a crucial step in the catabolism of tryptophan, an essential amino acid. This enzyme, also known as tryptophan pyrrolase, catalyzes the initial and rate-limiting step in the kynurenine pathway, converting tryptophan into N-formylkynurenine. This reaction involves the incorporation of molecular oxygen and the cleavage of the pyrrole ring of tryptophan. The mechanism proceeds through a complex series of steps, involving the formation of a ferryl-oxo species in the enzyme's heme prosthetic group, followed by the oxidative attack on the aromatic ring of tryptophan. This leads to the formation of a transient intermediate, which is then hydrolyzed to N-formylkynurenine. The enzyme exhibits high specificity for tryptophan and requires the presence of molecular oxygen and tetrahydrobiopterin (BH4) as cofactors. Tryptophan 2,3-dioxygenase activity is tightly regulated, primarily through the availability of its substrate, tryptophan, and the activity of the enzyme itself. The activity can be modulated by various factors, including hormones, dietary tryptophan levels, and cellular redox status. This enzyme plays a significant role in a variety of physiological processes, including the regulation of neurotransmitter synthesis, immune responses, and energy metabolism. Dysregulation of tryptophan 2,3-dioxygenase activity has been implicated in a range of pathological conditions, such as cancer, neurodegenerative diseases, and autoimmune disorders.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Indoleamine 2,3-dioxygenase 1 | An indoleamine 2,3-dioxygenase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P14902] | Homo sapiens (human) |
| Indoleamine 2,3-dioxygenase 2 | An indoleamine 2,3-dioxygenase 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q6ZQW0] | Homo sapiens (human) |
| Tryptophan 2,3-dioxygenase | A tryptophan 2,3-dioxygenase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P48775] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| tryptamine | aminoalkylindole; aralkylamino compound; indole alkaloid; tryptamines | human metabolite; mouse metabolite; plant metabolite | |
| oxyquinoline | Oxyquinoline: 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. | monohydroxyquinoline | antibacterial agent; antifungal agrochemical; antiseptic drug; iron chelator |
| bay h 4502 | 1-[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 | |
| dichlorophen | Dichlorophen: 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 | |
| benzophenone | benzophenone : The simplest member of the class of benzophenones, being formaldehyde in which both hydrogens are replaced by phenyl groups. | benzophenones | photosensitizing agent; plant metabolite |
| ebselen | ebselen : A benzoselenazole that is 1,2-benzoselenazol-3-one carrying an additional phenyl substituent at position 2. Acts as a mimic of glutathione peroxidase. | benzoselenazole | anti-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 |
| econazole | 1-{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 | |
| phenelzine | Phenelzine: One of the MONOAMINE OXIDASE INHIBITORS used to treat DEPRESSION; PHOBIC DISORDERS; and PANIC. | primary amine | |
| isoconazole | 1-{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 | |
| juglone | juglone : 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-naphthoquinone | geroprotector; herbicide; reactive oxygen species generator |
| ketoconazole | 1-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-lapachone | beta-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 3 | Vitamin 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 |
| miconazole | 1-[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 | |
| sulconazole | 1-{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 | |
| mitomycin | mitomycin : 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. | mitomycin | alkylating agent; antineoplastic agent |
| tryptophan | tryptophan : 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 |
| lawsone | lawsone : 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 acid | 3-hydroxy-2-naphthoic acid: RN given refers to parent cpd | naphthoic acid | |
| benzotriazole | benzotriazole : 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 | benzotriazoles | environmental contaminant; xenobiotic |
| benzothiazole | benzothiazole : An organic heterobicyclic compound that is a fusion product between benzene and thiazole. The parent of the class of benzothiazoles. benzothiazole: structure | benzothiazoles | environmental contaminant; plant metabolite; xenobiotic |
| phenylhydrazine | phenylhydrazines | xenobiotic | |
| phenylhydroxylamine | N-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-aminodiphenylamine | 4-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-chloroaniline | 4-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 | |
| dichlone | dichlone: structure | ||
| dibenzothiazyl disulfide | dibenzothiazol-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-naphthoquinone | 1,4-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 | |
| indazoles | Indazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES. | indazole | |
| 9-fluorenone | fluoren-9-one : The simplest member of the class fluoren-9-ones that is 9H-fluorene bearing an oxo substituent at position 9. | fluoren-9-ones | fungal xenobiotic metabolite |
| benzohydroxamic acid | |||
| 1,2-naphthoquinone | 1,2-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-naphthoquinones | aryl hydrocarbon receptor agonist; carcinogenic agent |
| benzylhydrazine | benzylhydrazine: RN given refers to parent cpd | ||
| 1,4-naphthohydroquinone | naphthohydroquinone : A hydroxynaphthalene that is naphthalene-1,4-diol and its C-substituted derivatives. | naphthalenediol; naphthohydroquinone | |
| 2-hydrazinobenzothiazole | |||
| 3-phenylpyridine | |||
| 2-methoxy-1,4-naphthoquinone | 2-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 |
| 6,7-Dimethyl-9-(2-acetoxyethyl)isoalloxazine | flavin | ||
| 1-(2-(2,4-dichlorophenyl)-2-hydroxyethyl)-1h-imidazole | 1-(2-(2,4-dichlorophenyl)-2-hydroxyethyl)-1H-imidazole: RN given refers to parent cpd; structure given in first source; principal transformation product of imazalil | ||
| enilconazole | 1-[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 | |
| phenthiazamine | phenthiazamine: RN given refers to parent cpd | ||
| chaetochromin | chaetochromin: from Chaetomium spp.; RN given refers to chaetochromin A | ||
| norharman | beta-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 |
| sertaconazole | 1-{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-chlorophenethylamine | 4-chlorophenethylamine: RN given refers to parent cpd | ||
| harmol | harmol: harmol is oxidized form of alkaloid harmolol; RN given refers to parent cpd; structure | harmala alkaloid | |
| 4(5)-phenylimidazole | 4(5)-phenylimidazole: tautomeric cpd; cytochrome P450 14alpha-sterol demethylase, CYP51 antagonist | ||
| alpha-lapachone | alpha-lapachone: structure in first source | organic heterotricyclic compound; organooxygen compound | |
| xyloidone | |||
| chrysomycin a | chrysomycin A: Streptomyces arenae; differs only in sugar moiety from gilvocarcin V | glycoside | |
| tryptanthrine | tryptanthrine: minor constituent of traditional Chinese medicine qing dai | alkaloid antibiotic; organic heterotetracyclic compound; organonitrogen heterocyclic compound | |
| fluoren-9-ol | fluoren-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-phenylisatogen | 2-phenylisatogen: inhibitor of mitochondrial oxidative phosphorylation; structure | ||
| 4-nitrobenzyloxyamine | 4-nitrobenzyloxyamine: RN given refers to HCl; RN for parent cpd not in Chemline 8/1/83; structure given in first source | ||
| 4-(2-thiazolylazo)resorcinol | 4-(2-thiazolylazo)resorcinol: sensitive indicator for metals | ||
| 1-methyltryptophan | non-proteinogenic alpha-amino acid; tryptophan derivative | antineoplastic agent; EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor | |
| 2-phenylindolone | |||
| benzyloxyamine | benzyloxyamine: RN given refers to parent cpd | ||
| 4-hydroxycarbazole | 4-hydroxycarbazole: structure in first source | ||
| cinnabarinic acid | cinnabarinic acid: structure | phenoxazine | |
| celastrol | monocarboxylic acid; pentacyclic triterpenoid | anti-inflammatory drug; antineoplastic agent; antioxidant; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; Hsp90 inhibitor; metabolite | |
| cryptotanshinone | cryptotanshinone: from Salvia miltiorrhiza | abietane diterpenoid | anticoronaviral agent |
| tanshinone ii a | tashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first source | abietane diterpenoid | |
| nsc 36398 | NSC 36398: structure in first source | ||
| Porfiromycine | mitomycin | ||
| 6,11-dioxo-12-naphtho[2,3-b]indolizinecarboxylic acid ethyl ester | naphthalenes | ||
| nsc228155 | |||
| 3-(1h-indol-3-yl)pyrrolidine-2,5-dione | 3-(1H-indol-3-yl)pyrrolidine-2,5-dione: structure in first source | ||
| indoximod | |||
| 5-amino-8-hydroxyquinoline | 5-amino-8-hydroxyquinoline: structure in first source | ||
| 5-hydroxytryptophan | 5-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 |
| benzyloxycarbonylleucyl-leucyl-leucine aldehyde | benzyloxycarbonylleucyl-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-one | organofluorine compound | ||
| tenatoprazole | Tenatoprazole: structure in first source | imidazopyridine | |
| 1-methyltryptophan | 1-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 | |
| captax | 1,3-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)thiosemicarbazide | 4-(3-chlorophenyl)thiosemicarbazide: structure given in first source | ||
| N-(2-chlorophenyl)hydrazine-1-carbothioamide | organochlorine compound | ||
| 1-(4-hydroxyphenyl)-3-(3-methoxyphenyl)thiourea | thioureas | ||
| methyl-thiohydantoin-tryptophan | methyl-thiohydantoin-tryptophan: structure in first source | organonitrogen compound; organooxygen compound | |
| 4-phenyl-3H-thiazole-2-thione | benzenes | ||
| brassinin | dithiocarbamic ester; indole phytoalexin | ||
| ethyl 4-(3-oxo-2,3-dihydroisothiazol-2-yl)benzoate | organic molecular entity | ||
| harman | harman : An indole alkaloid fundamental parent with a structure of 9H-beta-carboline carrying a methyl substituent at C-1. It has been isolated from the bark of Sickingia rubra, Symplocus racemosa, Passiflora incarnata, Peganum harmala, Banisteriopsis caapi and Tribulus terrestris, as well as from tobacco smoke. It is a specific, reversible inhibitor of monoamine oxidase A. harman: a beta-carboline; RN given refers to parent cpd; structure | harmala alkaloid; indole alkaloid; indole alkaloid fundamental parent | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; plant metabolite |
| oxiconazole | oxiconazole : 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 |
| 680c91 | 680C91 : 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-oxindolylalanine | beta-3-oxindolylalanine: main intermediate in tryptophan degration occurring in acid hydrolysis of protein | ||
| trans-avicennol | trans-avicennol: from Zanthoxylum chiloperone var. angustifolium; structure in first source | ||
| stf 083010 | STF 083010: inhibits Ire1 endonuclease; structure in first source |