Source:http://linkedlifedata.com/resource/umls/id/C0038302
MSH: A microsomal cytochrome P450 enzyme that catalyzes the 17-alpha-hydroxylation of progesterone or pregnenolone and subsequent cleavage of the residual two carbons at C17 in the presence of molecular oxygen and NADPH-FERRIHEMOPROTEIN REDUCTASE. This enzyme, encoded by CYP17 gene, generates precursors for glucocorticoid, androgen, and estrogen synthesis. Defects in CYP17 gene cause congenital adrenal hyperplasia (ADRENAL HYPERPLASIA, CONGENITAL) and abnormal sexual differentiation.,NCI: Encoded by human CYP17A1 Gene (Cytochrome P450 Family), 508-aa 57-kDa Cytochrome P450 XVIIA1 is a cAMP-regulated endoplasmic reticulum P450 heme-thiolate monooxygenase with 17alpha-hydroxylase and 17,20-lyase activity and a key enzyme in the steroidogenic pathway that produces progestins, mineralocorticoids, glucocorticoids, androgens, and estrogens. Involved in fetal and adult sexual development, CYP17A1 converts pregnenolone and progesterone to their 17-alpha-hydroxylated products and subsequently to dehydroepiandrosterone