20 lyase,CP17A_HUMAN,CPT7,CYP17,CYP17A1,CYPXVII,Cytochrome P450 17A1,Cytochrome P450 family 17,Cytochrome P450 family 17 subfamily A polypeptide 1,Cytochrome p450 subfamily XVII (steroid 17 alpha hydroxylase) adrenal hyperplasia,Cytochrome p450 XVIIA1, Cytochrome P450-C17,Cytochrome P450c17,OTTHUMP00000020382,P450 C17,P450c17,S17AH,Steroid 17 alpha hydroxylase/17,20 lyase,Steroid 17 alpha monooxygenase,Steroid 17-alpha-hydroxylase/17,Steroid 17-alpha-monooxygenase.
Conversion of pregnenolone and progesterone to their 17- alpha-hydroxylated products and subsequently to dehydroepiandrosterone (DHEA) and androstenedione. Catalyzes both the 17-alpha-hydroxylation and the 17,20-lyase reaction. Involved in sexual development during fetal life and at puberty.