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Information on EC 1.14.13.83 - precorrin-3B synthase

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IUBMB Comments
An iron-sulfur protein. An oxygen atom from dioxygen is incorporated into the macrocycle at C-20. In the aerobic cobalamin biosythesis pathway, four enzymes are involved in the conversion of precorrin-3A to precorrin-6A. The first of the four steps is carried out by EC 1.14.13.83, precorrin-3B synthase (CobG), yielding precorrin-3B as the product. This is followed by three methylation reactions, which introduce a methyl group at C-17 (CobJ; EC 2.1.1.131), C-11 (CobM; EC 2.1.1.133) and C-1 (CobF; EC 2.1.1.152) of the macrocycle, giving rise to precorrin-4, precorrin-5 and precorrin-6A, respectively.
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The enzyme appears in viruses and cellular organisms
Synonyms
Bmei0715, CobG, CobZ, precorrin-3A monooxygenase, precorrin-3X synthase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
precorrin-3A + NADH + H+ + O2 = precorrin-3B + NAD+ + H2O
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