ID   1.14.19.79
DE   3beta,22alpha-dihydroxysteroid 3-dehydrogenase.
AN   CYP90A1.
CA   (1) (22S)-22-hydroxycampesterol + reduced [NADPH--hemoprotein reductase]
CA   + O2 = (22S)-22-hydroxycampest-4-en-3-one + oxidized [NADPH--hemoprotein
CA   reductase] + 2 H2O + H(+).
CA   (2) 6-deoxoteasterone + reduced [NADPH--hemoprotein reductase] + O2 =
CA   3-dehydro-6-deoxoteasterone + oxidized [NADPH--hemoprotein reductase] +
CA   2 H2O + H(+).
CC   -!- This cytochrome P450 (heme-thiolate) enzyme, characterized from the
CC       plant Arabidopsis thaliana, catalyzes C-3 dehydrogenation of all
CC       3beta-hydroxy brassinosteroid synthesis intermediates with
CC       22-hydroxylated or 2(2),2(3)-dihydroxylated side chains.
DR   Q42569, C90A1_ARATH;  I1IUJ6, C90A1_BRADI;
//