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Lund J, Ahlgren R, Wu DH, Kagimoto M, Simpson ER, Waterman MR (1990) J Biol Chem 265: 3304-12 Deletion of a phenylalanine in the N-terminal region of human cytochrome P-450(17 alpha) results in partial combined 17 alpha-hydroxylase/17,20-lyase deficiency. Yanase T, Kagimoto M, Suzuki S, Hashiba K, Simpson ER, Waterman MR (1989) J Biol Chem 264: 18076-82 Developmental expression of bovine adrenocortical steroid hydroxylases. Regulation of P-450(17 alpha) expression leads to episodic fetal cortisol production. Lund J, Faucher DJ, Ford SP, Porter JC, Waterman MR, Mason JI (1988) J Biol Chem 263: 16195-201 Effects of adrenocorticotropin on 17 alpha-hydroxylase activity and cytochrome P-450(17 alpha) synthesis in bovine adrenocortical cells. Zuber MX, Simpson ER, Hall PF, Waterman MR (1985) J Biol Chem 260: 1842-8 Kinetic processivity of the two-step oxidations of progesterone and pregnenolone to androgens by human cytochrome P450 17A1. 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