Cobalamin biosynthesis protein CbiG: (Technical Classification > pN/pS > High > RefOG078) - Cobalamin biosynthesis is the synthesis of cobalamin (vitamin B12). CbiG proteins are specific for anaerobic cobalamin biosynthesis. CbiG, which shows homology with CobE of the aerobic pathway, participates in the conversion of cobalt-precorrin 5 into cobalt-precorrin 6. CbiG is responsible for the opening of the delta-lactone ring and extrusion of the C2-unit.
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