\sˈɛvəntˌiːn twˈɛnti lˈa͡ɪe͡ɪs], \sˈɛvəntˌiːn twˈɛnti lˈaɪeɪs], \s_ˈɛ_v_ə_n_t_ˌiː_n t_w_ˈɛ_n_t_i l_ˈaɪ_eɪ_s]\
Definitions of 17,20 LYASE
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A steroid hydroxylase system found in the microsomal membrane of the steroid-hormone producing tissues. It catalyzes the 17-hydroxylation of steroids, such as progesterone or pregnenolone in the presence of NADPH and molecular oxygen. This is an important step in the biosynthesis of steroid hormones. EC 126.96.36.199.
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