CYP17A1

（重定向自CYP17）

17α-hydroxylase converts pregnenolone and progesterone to their 17-hydroxy forms, and converts 17-hydroxypregnenolone and 17-hydroxyprogesterone to DHEA and androstenedione, respectively. It corresponds to the downward arrows in this reaction scheme.

Steroidogenesis, showing, at left side, both reactions of 17-alpha hydroxylase, and both actions of 17, 20 lyase.

Cytochrome P450 17A1, or steroid 17-alpha-monooxygenase, or 17α-hydroxylase/17,20 lyase/17,20 desmolase is an enzyme that in humans is encoded by the CYP17A1 gene. It is found in the zona reticularis of the adrenal cortex and zona fasciculata as well as gonadal tissues. This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are generally regarded as monooxygenases that catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids, and other lipids, including the remarkable carbon-carbon bond scission catalyzed by this enzyme. This protein localizes to the endoplasmic reticulum. It has both 17alpha-hydroxylase and 17,20-lyase activities, and is a key enzyme in the steroidogenic pathway that produces progestins, mineralocorticoids, glucocorticoids, androgens, and estrogens.

词汇	CYP17
分类	英语词汇英语翻译词典
释义	CYP17 英语例句库 In this study, MDS is adopted to simulate the structures of two kinds of metalloprotein, one is Metallothionein (MT), and the other is Cytochrome P450 (CYP). 本文采用该方法进行了两类含有金属离子的蛋白的结构模拟，其一是金属硫蛋白、其二是细胞色素 P450。英语百科 CYP17A1 （重定向自CYP17） Cytochrome P450 17A1, or steroid 17-alpha-monooxygenase, or 17α-hydroxylase/17,20 lyase/17,20 desmolase is an enzyme that in humans is encoded by the CYP17A1 gene. It is found in the zona reticularis of the adrenal cortex and zona fasciculata as well as gonadal tissues. This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are generally regarded as monooxygenases that catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids, and other lipids, including the remarkable carbon-carbon bond scission catalyzed by this enzyme. This protein localizes to the endoplasmic reticulum. It has both 17alpha-hydroxylase and 17,20-lyase activities, and is a key enzyme in the steroidogenic pathway that produces progestins, mineralocorticoids, glucocorticoids, androgens, and estrogens.
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