Last update 21 Mar 2024

CYP11B1

Steroid 11-beta-hydroxylase

Basic Info

Synonyms
类固醇11-β-羟化酶, CPN1, CYP11B
+ [13]
Introduction
A cytochrome P450 monooxygenase involved in the biosynthesis of adrenal corticoids (PubMed:18215163). Catalyzes the hydroxylation of carbon hydrogen bond at 11-beta position of 11-deoxycortisol and 11-deoxycorticosterone/21-hydroxyprogesterone yielding cortisol or corticosterone, respectively (PubMed:18215163). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate and reducing the second into a water molecule. Two electrons are provided by NADPH via a two-protein mitochondrial transfer system comprising flavoprotein FDXR (adrenodoxin/ferredoxin reductase) and nonheme iron-sulfur protein FDX1 or FDX2 (adrenodoxin/ferredoxin) (PubMed:18215163).

Analysis

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