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The diverse chemistry of cytochrome P450 17A1 (P450c17, CYP17A1).


ABSTRACT: The steroid hydroxylation and carbon-carbon bond cleavage activities of cytochrome P450 17A1 (CYP17A1) are responsible for the production of glucocorticoids and androgens, respectively. The inhibition of androgen synthesis is an important strategy to treat androgen-dependent prostate cancer. We discuss the different enzymatic activities towards the various substrates of CYP17A1, demonstrating its promiscuity. Additionally, a novel interhelical interaction is proposed between the F-G loop and the B'-helix to explain the 16?-hydroxylase activity of human CYP17A1 with progesterone as the substrate. The techniques used by biochemists to study this important enzyme are also summarized. This article is part of a Special Issue entitled 'Steroid/Sterol signaling'.

SUBMITTER: Yoshimoto FK 

PROVIDER: S-EPMC4456341 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature

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The diverse chemistry of cytochrome P450 17A1 (P450c17, CYP17A1).

Yoshimoto Francis K FK   Auchus Richard J RJ  

The Journal of steroid biochemistry and molecular biology 20141204


The steroid hydroxylation and carbon-carbon bond cleavage activities of cytochrome P450 17A1 (CYP17A1) are responsible for the production of glucocorticoids and androgens, respectively. The inhibition of androgen synthesis is an important strategy to treat androgen-dependent prostate cancer. We discuss the different enzymatic activities towards the various substrates of CYP17A1, demonstrating its promiscuity. Additionally, a novel interhelical interaction is proposed between the F-G loop and the  ...[more]

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