别名 Cholesterol desmolase、cholesterol monooxygenase (side-chain-cleaving)、Cholesterol side-chain cleavage enzyme, mitochondrial + [9] |
简介 A cytochrome P450 monooxygenase that catalyzes the side-chain hydroxylation and cleavage of cholesterol to pregnenolone, the precursor of most steroid hormones (PubMed:21636783). Catalyzes three sequential oxidation reactions of cholesterol, namely the hydroxylation at C22 followed with the hydroxylation at C20 to yield 20R,22R-hydroxycholesterol that is further cleaved between C20 and C22 to yield the C21-steroid pregnenolone and 4-methylpentanal (PubMed:21636783). 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:21636783). |
靶点 |
作用机制 CYP11A1抑制剂 |
在研机构 |
原研机构 |
在研适应症 |
非在研适应症- |
最高研发阶段临床1期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2025-06-17 |
申办/合作机构 |
开始日期2025-05-02 |
申办/合作机构 |
开始日期2025-05-01 |