ID   6.3.5.9
DE   Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolyzing).
CA   2 ATP + hydrogenobyrinic acid + 2 L-glutamine + 2 H(2)O = 2 ADP +
CA   2 phosphate + hydrogenobyrinic acid a,c-diamide + 2 L-glutamate.
CC   -!- This step in the aerobic biosynthesis of cobalamin generates
CC       hydrogenobyrinic acid a,c-diamide, the substrate required by
CC       EC 6.6.1.2, which adds cobalt to the macrocycle.
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