Page last updated: 2024-10-24
coumarin 7-hydroxylase activity
Definition
Target type: molecularfunction
Catalysis of the reaction: coumarin + O2 + NADPH + H+ = hydroxycoumarin + H2O + NADP+. [Reactome:163103]
Coumarin 7-hydroxylase activity is a type of monooxygenase activity that catalyzes the hydroxylation of coumarin at the 7-position. This enzymatic reaction involves the incorporation of one atom of oxygen from molecular oxygen (O2) into the substrate (coumarin), while the other oxygen atom is reduced to water. The enzyme responsible for this activity is typically a cytochrome P450 monooxygenase, which utilizes a heme prosthetic group and electrons from NADPH and a reductase to carry out the hydroxylation reaction. The active site of the enzyme specifically recognizes coumarin and positions it for hydroxylation at the 7-position. The hydroxyl group introduced at the 7-position alters the chemical properties of coumarin, potentially affecting its biological activity or metabolic fate. Coumarin 7-hydroxylase activity plays a significant role in the metabolism of coumarin and related compounds, which are naturally occurring compounds found in various plants and are also used in the synthesis of pharmaceuticals and other chemicals. The activity can also be involved in the detoxification of xenobiotics, foreign compounds not naturally found in the body, that may contain coumarin-like structures.'
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Proteins (4)
| Protein | Definition | Taxonomy |
|---|---|---|
| Cytochrome P450 2A13 | A cytochrome P450 2A that is a translation product of the CYP2A13 gene in human. [PRO:DNx, UniProtKB:Q16696] | Homo sapiens (human) |
| Cytochrome P450 2A6 | A cytochrome P450 2A that is a translation product of the CYP2A6 gene in human. [PRO:DAN, UniProtKB:P11509] | Homo sapiens (human) |
| Cytochrome P450 2A13 | A cytochrome P450 2A that is a translation product of the CYP2A13 gene in human. [PRO:DNx, UniProtKB:Q16696] | Homo sapiens (human) |
| Cytochrome P450 2A6 | A cytochrome P450 2A that is a translation product of the CYP2A6 gene in human. [PRO:DAN, UniProtKB:P11509] | Homo sapiens (human) |
Compounds (75)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| benzaldehyde | benzaldehydes | EC 3.1.1.3 (triacylglycerol lipase) inhibitor; EC 3.5.5.1 (nitrilase) inhibitor; flavouring agent; fragrance; odorant receptor agonist; plant metabolite | |
| coumarin | 2H-chromen-2-one: coumarin derivative | coumarins | fluorescent dye; human metabolite; plant metabolite |
| naphthalene | naphthalenes; ortho-fused bicyclic arene | apoptosis inhibitor; carcinogenic agent; environmental contaminant; mouse metabolite; plant metabolite; volatile oil component | |
| phenanthrene | phenanthrene : A polycyclic aromatic hydrocarbon composed of three fused benzene rings which takes its name from the two terms 'phenyl' and 'anthracene.' | ortho-fused polycyclic arene; ortho-fused tricyclic hydrocarbon; phenanthrenes | environmental contaminant; mouse metabolite |
| phenethylamine | 2-phenylethylamine : A phenylethylamine having the phenyl substituent at the 2-position. phenethylamine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7016 | alkaloid; aralkylamine; phenylethylamine | Escherichia coli metabolite; human metabolite; mouse metabolite |
| tryptamine | aminoalkylindole; aralkylamino compound; indole alkaloid; tryptamines | human metabolite; mouse metabolite; plant metabolite | |
| acetazolamide | Acetazolamide: One of the CARBONIC ANHYDRASE INHIBITORS that is sometimes effective against absence seizures. It is sometimes useful also as an adjunct in the treatment of tonic-clonic, myoclonic, and atonic seizures, particularly in women whose seizures occur or are exacerbated at specific times in the menstrual cycle. However, its usefulness is transient often because of rapid development of tolerance. Its antiepileptic effect may be due to its inhibitory effect on brain carbonic anhydrase, which leads to an increased transneuronal chloride gradient, increased chloride current, and increased inhibition. (From Smith and Reynard, Textbook of Pharmacology, 1991, p337) | monocarboxylic acid amide; sulfonamide; thiadiazoles | anticonvulsant; diuretic; EC 4.2.1.1 (carbonic anhydrase) inhibitor |
| 5-methoxypsoralen | 5-methoxypsoralen : A 5-methoxyfurocoumarin that is psoralen substituted by a methoxy group at position 5. 5-Methoxypsoralen: A linear furanocoumarin that has phototoxic and anti-inflammatory properties, with effects similar to METHOXSALEN. It is used in PUVA THERAPY for the treatment of PSORIASIS. | 5-methoxyfurocoumarin; organic heterotricyclic compound; psoralens | hepatoprotective agent; plant metabolite |
| beta-naphthoflavone | beta-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the f side of flavone. beta-Naphthoflavone: A polyaromatic hydrocarbon inducer of P4501A1 and P4501A2 cytochromes. (Proc Soc Exp Biol Med 1994 Dec:207(3):302-308) | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist |
| cannabinol | Cannabinol: A physiologically inactive constituent of Cannabis sativa L. | dibenzopyran | |
| amphetamine | 1-phenylpropan-2-amine : A primary amine that is isopropylamine in which a hydrogen attached to one of the methyl groups has been replaced by a phenyl group. amphetamine : A racemate comprising equimolar amounts of (R)-amphetamine (also known as levamphetamine or levoamphetamine) and (S)-amphetamine (also known as dexamfetamine or dextroamphetamine. Amphetamine: A powerful central nervous system stimulant and sympathomimetic. Amphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulation of release of monamines, and inhibiting monoamine oxidase. Amphetamine is also a drug of abuse and a psychotomimetic. The l- and the d,l-forms are included here. The l-form has less central nervous system activity but stronger cardiovascular effects. The d-form is DEXTROAMPHETAMINE. | primary amine | |
| valproic acid | valproic acid : A branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem. Valproic Acid: A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS. | branched-chain fatty acid; branched-chain saturated fatty acid | anticonvulsant; antimanic drug; EC 3.5.1.98 (histone deacetylase) inhibitor; GABA agent; neuroprotective agent; psychotropic drug; teratogenic agent |
| isoniazid | Hydra: A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals. hydrazide : Compounds derived from oxoacids RkE(=O)l(OH)m (l =/= 0) by replacing -OH by -NRNR2 (R groups are commonly H). (IUPAC). | carbohydrazide | antitubercular agent; drug allergen |
| methoxsalen | methoxsalen : A member of the class of psoralens that is 7H-furo[3,2-g]chromen-7-one in which the 9 position is substituted by a methoxy group. It is a constituent of the fruits of Ammi majus. Like other psoralens, trioxsalen causes photosensitization of the skin. It is administered topically or orally in conjunction with UV-A for phototherapy treatment of vitiligo and severe psoriasis. Methoxsalen: A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation. | aromatic ether; psoralens | antineoplastic agent; cross-linking reagent; dermatologic drug; photosensitizing agent; plant metabolite |
| 4-dichlorobenzene | 1,4-dichlorobenzene : A dichlorobenzene carrying chloro groups at positions 1 and 4. dichlorobenzene : Any member of the class of chlorobenzenes carrying two chloro groups at unspecified positions. | dichlorobenzene | insecticide |
| pilocarpine | (+)-pilocarpine : The (+)-enantiomer of pilocarpine. Pilocarpine: A slowly hydrolyzed muscarinic agonist with no nicotinic effects. Pilocarpine is used as a miotic and in the treatment of glaucoma. | pilocarpine | antiglaucoma drug |
| ficusin | Ficusin: A naturally occurring furocoumarin, found in PSORALEA. After photoactivation with UV radiation, it binds DNA via single and double-stranded cross-linking. psoralen : The simplest member of the class of psoralens that is 7H-furo[3,2-g]chromene having a keto group at position 7. It has been found in plants like Psoralea corylifolia and Ficus salicifolia. | psoralens | plant metabolite |
| 1-methylnaphthalene | 1-methylnaphthalene : A methylnaphthalene carrying a methyl substituent at position 1. | methylnaphthalene | carcinogenic agent; plant metabolite |
| 1-chloronaphthalene | 1-chloronaphthalene: word preservative; in xylamon the active ingredient is 60% 1-chloronaphthalene; structure in Merck Index, 9th ed, #2126 | ||
| 1-naphthol | 1-naphthol : A naphthol carrying a hydroxy group at position 1. 1-naphthol: RN given refers to parent cpd hydroxynaphthalene : Any member of the class of naphthalenes that is naphthalene carrying one or more hydroxy groups. | naphthol | genotoxin; human xenobiotic metabolite |
| 2-methylnaphthalene | 2-methylnaphthalene : A methylnaphthalene carrying a methyl substituent at position 2. 2-methylnaphthalene: RN given refers to parent cpd | methylnaphthalene | |
| 2-chloronaphthalene | 2-chloronaphthalene: structure in first source | ||
| 2-methylquinoline | 2-methylquinoline: RN given refers to parent cpd methylquinoline : Any member of the class of quinolines carrying at least one methyl substituent. quinaldine : A quinoline compound in which the quinoline skeleton is substituted at C-2 with a methyl group. | quinolines | |
| 2-methoxynaphthalene | naphthalenes | ||
| 4-(dimethylamino)benzaldehyde | 4-(dimethylamino)benzaldehyde : A member of the class of benzaldehydes that is benzaldehyde carrying a dimethylamino substituent at position 4. Used as an indicator for detection of indoles and hydrazine. p-dimethylaminobenzaldehyde: structure in first source | benzaldehydes; substituted aniline; tertiary amino compound | chromogenic compound |
| 4-methylbenzaldehyde | p-tolualdehyde : A tolualdehyde compound with the methyl substituent at the 4-position. | tolualdehyde | plant metabolite |
| 1,4-dibromobenzene | dibromobenzene | ||
| 2-naphthol | 2-naphthol : A naphthol carrying a hydroxy group at position 2. 2-naphthol: RN given refers to parent cpd naphthols : Any hydroxynaphthalene derivative that has a single hydroxy substituent. | naphthol | antinematodal drug; genotoxin; human urinary metabolite; human xenobiotic metabolite; mouse metabolite; radical scavenger |
| beta-nicotyrine | pyridines | ||
| indole-3-carbaldehyde | indole-3-carbaldehyde : A heteroarenecarbaldehyde that is indole in which the hydrogen at position 3 has been replaced by a formyl group. indole-3-carbaldehyde: metabolite of tryptophan; structure | heteroarenecarbaldehyde; indole alkaloid; indoles | bacterial metabolite; human xenobiotic metabolite; marine metabolite; plant metabolite |
| 1,2-dimethylnaphthalene | 1,2-dimethylnaphthalene : A dimethylnaphthalene carrying methyl groups at positions 1 and 2. dimethylnaphthalene : Any member of the class of naphthalenes carrying two methyl groups at unspecified positions. | dimethylnaphthalene | |
| 1,6-dimethylnaphthalene | 1,6-dimethylnaphthalene: structure in first source | dimethylnaphthalene | |
| 2,6-dimethylnaphthalene | 2,6-dimethylnaphthalene : A dimethylnaphthalene carrying methyl groups at positions 2 and 6. 2,6-dimethylnaphthalene: RN given refers to parent cpd | dimethylnaphthalene | environmental contaminant |
| anatabine | anatabine: alkaloid found in tobacco; structure | bipyridines | |
| alpha-naphthoflavone | alpha-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the h side of flavone. A synthetic compound, it is an inhibitor of aromatase (EC 1.14.14.14). alpha-naphthoflavone: inhibits P4501A1 and P4501A2; stimulates some activities of P4503A4 | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist; aryl hydrocarbon receptor antagonist; EC 1.14.14.14 (aromatase) inhibitor |
| 3-methylquinoline | methylquinoline | xenobiotic | |
| 2,6-dimethylquinoline | 2,6-dimethylquinoline: from roots of Peucedanum praeruptorum II | ||
| 1-methylisoquinoline | 1-methylisoquinoline : An isoquinoline substituted by a methyl group at position 1. | isoquinolines | |
| 4-chlorobiphenyl | 4-chlorobiphenyl : A monochlorobiphenyl carrying a chloro substituent at position 4. | monochlorobiphenyl | |
| phenethyl isothiocyanate | phenethyl isothiocyanate : An isothiocyanate having a phenethyl group attached to the nitrogen. It is a naturally occurring compound found in some cruciferous vegetables (e.g. watercress) and is known to possess anticancer properties. phenethyl isothiocyanate: a dietary liver aldehyde dehydrogenase inhibitor; promotes urinary bladder carcinoma | isothiocyanate | antineoplastic agent; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; metabolite |
| anabaseine | anabaseine: structure given in first source | bipyridines | |
| tranylcypromine | (1R,2S)-tranylcypromine : A 2-phenylcyclopropan-1-amine that is the (1R,2S)-enantiomer of tranylcypromine. tranylcypromine : A racemate comprising equal amounts of (1R,2S)- and (1S,2R)-2-phenylcyclopropan-1-amine. An irreversible monoamine oxidase inhibitor that is used as an antidepressant (INN tranylcypromine). Tranylcypromine: A propylamine formed from the cyclization of the side chain of amphetamine. This monoamine oxidase inhibitor is effective in the treatment of major depression, dysthymic disorder, and atypical depression. It also is useful in panic and phobic disorders. (From AMA Drug Evaluations Annual, 1994, p311) | 2-phenylcyclopropan-1-amine | |
| 4-anisaldehyde | 4-anisaldehyde: RN given refers to cpd with specified locants for methoxy moieties; structure in Merck, 9th ed, #696 p-methoxybenzaldehyde : A member of the class of benzaldehydes consisting of benzaldehyde itself carrying a methoxy substituent at position 4. | benzaldehydes | bacterial metabolite; human urinary metabolite; insect repellent; plant metabolite |
| nitrogenase stabilizing-protective protein, bacteria | N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamide | androgen antagonist; antineoplastic agent | |
| 1-n-butylimidazole | |||
| proadifen hydrochloride | |||
| beta-tetralone | |||
| pirlindole | pirlindole: RN given refers to parent cpd; synonym pyrazidol refers to mono-HCl; structure in Negwer, 5th ed, #2812 | carbazoles | |
| nicotine | (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic |
| 6-paradol | 6-paradol: induces apoptosis; structure in first source | ketone; monomethoxybenzene; phenols | |
| tariquidar | benzamides | ||
| 5-(3-pyridyl)tetrazole | 5-(3-pyridyl)tetrazole: RN given refers to parent cpd | ||
| pseudonicotine | (R)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has R-configuration. pseudonicotine: structure | 3-(1-methylpyrrolidin-2-yl)pyridine | |
| anabasine | (S)-anabasine : The (S)-enantiomer of anabasine. anabasine : A pyridine alkaloid that is pyridine substituted by a piperidin-2-yl group at position 3. Anabasine: A piperidine botanical insecticide. | anabasine | |
| 2-chlorobiphenyl | 2-chlorobiphenyl : A monochlorobiphenyl carrying a single chloro substituent at position 2. 2-chlorobiphenyl: RN from Toxlit chlorobiphenyl : A chloroarene that consists of a biphenyl skeleton substituted by one or more chloro groups. monochlorobiphenyl : A chlorobiphenyl carrying a single chloro substituent at unspecified position. | monochlorobiphenyl | |
| menthofuran | menthofuran : A monoterpenoid that is 4,5,6,7-tetrahydro-1-benzofuran substituted by methyl groups at positions 3 and 6. menthofuran: RN given refers to cpd without isomeric designation; derives from cyclization of pulegone | 1-benzofurans; monoterpenoid | nematicide; plant metabolite |
| myosmine | myosmine : A member of the class of pyridines that is pyridine substituted by a 3,4-dihydro-2H-pyrrol-5-yl group at position 3. It is an alkaloid found in tobacco plants and exhibits genotoxic effects. myosmine: alkaloid found in Nicotiana; structure | pyridine alkaloid; pyrroline | EC 1.14.14.14 (aromatase) inhibitor; mutagen; plant metabolite |
| bay 57-1293 | pritelivir: herpes simplex virus 1 helicase-primase inhibitor | ||
| n-nonyl-1-deoxynojirimycin | N-nonyldeoxynojirimycin : A hydroxypiperidine that is deoxynojirimycin (duvoglustat) in which the amino hydrogen is replaced by a nonyl group. | hydroxypiperidine; tertiary amino compound | antiviral agent; EC 3.2.1.20 (alpha-glucosidase) inhibitor; EC 3.2.1.45 (glucosylceramidase) inhibitor |
| cannabidiol | cannabidiol : An cannabinoid that is cyclohexene which is substituted by a methyl group at position 1, a 2,6-dihydroxy-4-pentylphenyl group at position 3, and a prop-1-en-2-yl group at position 4. Cannabidiol: Compound isolated from Cannabis sativa extract. | olefinic compound; phytocannabinoid; resorcinols | antimicrobial agent; plant metabolite |
| cotinine | (-)-cotinine : An N-alkylpyrrolidine that consists of N-methylpyrrolidinone bearing a pyridin-3-yl substituent at position C-5 (the 5S-enantiomer). It is an alkaloid commonly found in Nicotiana tabacum. Cotinine: The N-glucuronide conjugate of cotinine is a major urinary metabolite of NICOTINE. It thus serves as a biomarker of exposure to tobacco SMOKING. It has CNS stimulating properties. | N-alkylpyrrolidine; pyridines; pyrrolidin-2-ones; pyrrolidine alkaloid | antidepressant; biomarker; human xenobiotic metabolite; plant metabolite |
| dasatinib | dasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN). N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source | 1,3-thiazoles; aminopyrimidine; monocarboxylic acid amide; N-(2-hydroxyethyl)piperazine; N-arylpiperazine; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antineoplastic agent; tyrosine kinase inhibitor |
| bergaptol | 5-hydroxyfurocoumarin : A furanocoumarin which bears a hydroxy group at position 5. | 5-hydroxyfurocoumarin; psoralens | |
| chrysin | chrysin : A dihydroxyflavone in which the two hydroxy groups are located at positions 5 and 7. | 7-hydroxyflavonol; dihydroxyflavone | anti-inflammatory agent; antineoplastic agent; antioxidant; EC 2.7.11.18 (myosin-light-chain kinase) inhibitor; hepatoprotective agent; plant metabolite |
| orteronel | orteronel: non-steroidal 17,20-lyase inhibitor; structure in first source | ||
| tofacitinib | tofacitinib : A pyrrolopyrimidine that is pyrrolo[2,3-d]pyrimidine substituted at position 4 by an N-methyl,N-(1-cyanoacetyl-4-methylpiperidin-3-yl)amino moiety. Used as its citrate salt to treat moderately to severely active rheumatoid arthritis. | N-acylpiperidine; nitrile; pyrrolopyrimidine; tertiary amino compound | antirheumatic drug; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor |
| way 181187 | |||
| mk-0249 | MK-0249: a histamine-3 receptor inverse agonist; structure in first source | ||
| cct129202 | |||
| cct 128930 | |||
| 17-dihydroexemestane | |||
| tak-441 | TAK-441: structure in first source | ||
| kaf156 | ganaplacide: antimalarial | ||
| (5s,6s,9r)-5-amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5h-cyclohepta(b)pyridin-9-yl 4-(2-oxo-2,3-dihydro-1h-imidazo(4,5-b)pyridin-1-yl)piperidine-1-carboxylate | |||
| dolutegravir | difluorobenzene; monocarboxylic acid amide; organic heterotricyclic compound; secondary carboxamide | HIV-1 integrase inhibitor |