ID 1.3.1.54 DE Precorrin-6A reductase. AN Precorrin-6X reductase. AN Precorrin-6Y:NADP(+) oxidoreductase. CA Precorrin-6B + NADP(+) = precorrin-6A + NADPH. CC -!- The enzyme, which participates in the aerobic (late cobalt insertion) CC pathway of adenosylcobalamin biosynthesis, catalyzes the reduction of CC the double bond between C-18 and C-19 of precorrin-6A. CC -!- See EC 1.3.1.106 for the corresponding enzyme that participates in CC the anaerobic cobalamin biosynthesis pathway. PR PROSITE; PDOC51014; DR P9WP88, COBK_MYCTO ; P9WP89, COBK_MYCTU ; O68098, COBK_RHOCB ; DR Q53139, COBK_RHOER ; P21920, COBK_SINSX ; //