Target type: molecularfunction
Catalysis of the reaction: a steroid + reduced adrenal ferredoxin + O2 = an 11-beta-hydroxysteroid + oxidized adrenal ferredoxin + H2O. [EC:1.14.15.4]
Steroid 11-beta-monooxygenase activity is a key enzyme in the biosynthesis of corticosteroids. This enzyme catalyzes the hydroxylation of steroids at the 11-beta position, which is a crucial step in the production of cortisol, aldosterone, and other vital hormones. The reaction involves the incorporation of one atom of oxygen from molecular oxygen (O2) into the steroid substrate, while the other oxygen atom is reduced to water. The enzyme requires the cofactor NADPH to donate electrons for the hydroxylation reaction. The active site of the enzyme contains a heme group that is essential for oxygen activation. Steroid 11-beta-monooxygenase activity plays a critical role in regulating blood pressure, inflammation, and glucose metabolism. Mutations in the gene encoding this enzyme can lead to various endocrine disorders, including congenital adrenal hyperplasia.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Cytochrome P450 11B2, mitochondrial | A cytochrome P450 11B that is a translation product of the CYP11B2 gene in human. [PRO:DNx, UniProtKB:P19099] | Homo sapiens (human) |
| Cytochrome P450 11B1, mitochondrial | A cytochrome P450 11B that is a translation product of the CYP11B1 gene in human. [PRO:DNx, UniProtKB:P15538] | Homo sapiens (human) |
| Cytochrome P450 11B2, mitochondrial | A cytochrome P450 11B that is a translation product of the CYP11B2 gene in human. [PRO:DNx, UniProtKB:P19099] | Homo sapiens (human) |
| Cytochrome P450 11B1, mitochondrial | A cytochrome P450 11B that is a translation product of the CYP11B1 gene in human. [PRO:DNx, UniProtKB:P15538] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| fluconazole | fluconazole : A member of the class of triazoles that is propan-2-ol substituted at position 1 and 3 by 1H-1,2,4-triazol-1-yl groups and at position 2 by a 2,4-difluorophenyl group. It is an antifungal drug used for the treatment of mucosal candidiasis and for systemic infections including systemic candidiasis, coccidioidomycosis, and cryptococcosis. Fluconazole: Triazole antifungal agent that is used to treat oropharyngeal CANDIDIASIS and cryptococcal MENINGITIS in AIDS. | conazole antifungal drug; difluorobenzene; tertiary alcohol; triazole antifungal drug | environmental contaminant; P450 inhibitor; xenobiotic |
| 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 | |
| letrozole | nitrile; triazoles | antineoplastic agent; EC 1.14.14.14 (aromatase) inhibitor | |
| metyrapone | metyrapone : An aromatic ketone that is 3,3-dimethylbutan-2-one in which the methyl groups at positions 1 and 4 are replaced by pyridin-3-yl groups. A steroid 11beta-monooxygenase (EC 1.14.15.4) inhibitor, it is used in the diagnosis of adrenal insufficiency. Metyrapone: An inhibitor of the enzyme STEROID 11-BETA-MONOOXYGENASE. It is used as a test of the feedback hypothalamic-pituitary mechanism in the diagnosis of CUSHING SYNDROME. | aromatic ketone | antimetabolite; diagnostic agent; EC 1.14.15.4 (steroid 11beta-monooxygenase) inhibitor |
| staurosporine | indolocarbazole alkaloid; organic heterooctacyclic compound | apoptosis inducer; bacterial metabolite; EC 2.7.11.13 (protein kinase C) inhibitor; geroprotector | |
| fadrozole | Fadrozole: A selective aromatase inhibitor effective in the treatment of estrogen-dependent disease including breast cancer. | imidazopyridine | |
| azalanstat | azalanstat: inhibits lanosterol 14 alpha-demethylase, the enzyme which catalyzes the first step in conversion of lanosterol to cholesterol in mammals; structure given in first source | ||
| 1-benzylimidazole | 1-benzylimidazole: inhibits human thromboxane synthetase | ||
| abiraterone | 3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; pyridines | antineoplastic agent; EC 1.14.99.9 (steroid 17alpha-monooxygenase) inhibitor | |
| ketoconazole | (2R,4S)-ketoconazole : A cis-1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine which dioxolane moiety has (2R,4S)-configuration. | cis-1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine | |
| posaconazole | aromatic ether; conazole antifungal drug; N-arylpiperazine; organofluorine compound; oxolanes; triazole antifungal drug; triazoles | trypanocidal drug | |
| 1-(phenylmethyl)benzimidazole | benzimidazoles | ||
| etomidate | etomidate : The ethyl ester of 1-[(1R)-1-phenylethyl]-1H-imidazole-5-carboxylic acid. It is an intravenous general anaesthetic with no analgesic activity. Etomidate: Imidazole derivative anesthetic and hypnotic with little effect on blood gases, ventilation, or the cardiovascular system. It has been proposed as an induction anesthetic. | ethyl ester; imidazoles | intravenous anaesthetic; sedative |
| 1-[(3-methylphenyl)methyl]benzimidazole | benzimidazoles | ||
| 4-fluoro-N-(3-pyridinyl)benzamide | carbonyl compound; organohalogen compound | ||
| 4-(1H-imidazol-1-ylmethyl)benzonitrile | benzenes; nitrile | ||
| vorozole | vorozole: structure given in first source; vorozole/R 83842 is ((+)/dextro-isomer), RN 129731-10-8; R 83839 ((-)/levo-isomer) | benzotriazoles | |
| osilodrostat | Osilodrostat: an orally active aldosterone-synthase inhibitor |