ID 6.3.5.10 DE adenosylcobyric acid synthase (glutamine-hydrolyzing). AN 5'-deoxy-5'-adenosylcobyrinic-acid-a,c-diamide:L-glutamine amido-ligase. AN Ado-cobyric acid synthase [glutamine hydrolyzing]. AN cobyric acid synthase. CA adenosylcob(III)yrinate a,c-diamide + 4 ATP + 4 H2O + 4 L-glutamine = CA adenosylcob(III)yrate + 4 ADP + 4 H(+) + 4 L-glutamate + 4 phosphate. CC -!- NH3 can act instead of glutamine. CC -!- This enzyme catalyzes the four-step amidation sequence from cobyrinic CC acid a,c-diamide to cobyric acid via the formation of cobyrinic acid CC triamide, tetraamide and pentaamide intermediates. //