6.3.5.10: adenosylcobyric acid synthase (glutamine-hydrolysing)
This is an abbreviated version!
For detailed information about adenosylcobyric acid synthase (glutamine-hydrolysing), go to the full flat file.
Reaction
4 ATP + + 4 L-glutamine + 4 H2O = 4 ADP + 4 phosphate + + 4 L-glutamate
Synonyms
5'-deoxy-5'-adenosylcobyrinic-acid-a,c-diamide:L-glutamine amido-ligase, Ado-cobyric acid synthase (glutamine hydrolyzing), CbiP, cobalamin biosynthesis aminotransferase, CobQ, cobyric acid synthase, cobyric acid synthetase, More
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Reaction
Reaction on EC 6.3.5.10 - adenosylcobyric acid synthase (glutamine-hydrolysing)
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4 ATP + adenosylcobyrinic acid a,c-diamide + 4 L-glutamine + 4 H2O = 4 ADP + 4 phosphate + adenosylcobyric acid + 4 L-glutamate
4 ATP + adenosylcobyrinic acid a,c-diamide + 4 L-glutamine + 4 H2O = 4 ADP + 4 phosphate + adenosylcobyric acid + 4 L-glutamate
catalytic mechanism
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4 ATP + adenosylcobyrinic acid a,c-diamide + 4 L-glutamine + 4 H2O = 4 ADP + 4 phosphate + adenosylcobyric acid + 4 L-glutamate
Requires Mg2+. NH3 can act instead of glutamine. This enzyme catalyses the four-step amidation sequence from cobyrinic acid a,c-diamide to cobyric acid via the formation of cobyrinic acid triamide, tetraamide and pentaamide intermediates
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