ID   2.1.1.133
DE   precorrin-4 C(11)-methyltransferase.
AN   precorrin-3 methylase.
AN   precorrin-4 C11-methyltransferase.
CA   precorrin-4 + S-adenosyl-L-methionine = precorrin-5 + S-adenosyl-L-
CA   homocysteine.
CC   -!- In the aerobic (late cobalt insertion) cobalamin biosythesis pathway,
CC       four enzymes are involved in the conversion of precorrin-3A to
CC       precorrin-6A.
CC   -!- The first of the four steps is carried out by EC 1.14.13.83 (CobG),
CC       yielding precorrin-3B as the product.
CC   -!- This is followed by three methylation reactions, which introduce a
CC       methyl group at C-17 (CobJ; EC 2.1.1.131), C-11 (CobM; EC 2.1.1.133)
CC       and C-1 (CobF; EC 2.1.1.152) of the macrocycle, giving rise to
CC       precorrin-4, precorrin-5, and precorrin-6A, respectively.
CC   -!- See EC 2.1.1.271 for the C(11)-methyltransferase enzyme that
CC       participates in the anaerobic cobalamin biosynthesis pathway.
DR   P9WGB0, COBM_MYCTO ;  P9WGB1, COBM_MYCTU ;  Q9HZP9, COBM_PSEAE ;
DR   O68100, COBM_RHOCB ;  Q53138, COBM_RHOER ;  P21922, COBM_SINSX ;
//