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Catalysis of the reaction: cobyrinate + 2 L-glutamine + 2 ATP + 2 H2O = cob(II)yrinate a,c-diamide + 2 L-glutamate + 2 ADP + 2 orthophosphate. Catalysis of the transfer of the amide nitrogen of glutamine to a variety of substrates. GATases catalyze two separate reactions at two active sites, which are located either on a single polypeptide chain or on different subunits. In the glutaminase reaction, glutamine is hydrolyzed to glutamate and ammonia, which is added to an acceptor substrate in the synthase reaction. Catalysis of the ligation of two substances with concomitant breaking of a diphosphate linkage, usually in a nucleoside triphosphate. Ligase is the systematic name for any enzyme of EC class 6. Catalysis of the reaction: 2 ATP + hydrogenobyrinic acid + 2 L-glutamine + 2 H2O = 2 ADP + 2 phosphate + hydrogenobyrinic acid a,c-diamide + 2 L-glutamate. Catalysis of the reaction: L-glutamine + glutamyl-tRNA(Gln) + ATP = L-glutamate + glutaminyl-tRNA(Gln) + phosphate + ADP. Catalysis of the reaction: L-glutamine + aspartyl-tRNA(Asn) + ATP = L-glutamate + asparaginyl-tRNA(Asn) + phosphate + ADP. Catalysis of the reaction: ATP + xanthosine 5'-phosphate + L-glutamine + H2O = AMP + diphosphate + GMP + L-glutamate. Catalysis of the reaction: 2 ATP + L-glutamine + CO2 + H2O = 2 ADP + phosphate + glutamate + carbamoyl phosphate. Catalysis of the reaction: ATP + 5'-phosphoribosylformylglycinamide + L-glutamine + H2O = ADP + phosphate + 5'-phosphoribosylformylglycinamidine + L-glutamate. Catalysis of the reaction: ATP + deamido-NAD+ + L-glutamine + H2O = AMP + diphosphate + NAD+ + L-glutamate. Catalysis of the reaction: ATP + L-aspartate + L-glutamine = AMP + diphosphate + L-asparagine + L-glutamate. Catalysis of the ligation of two substances via a carbon-nitrogen bond with concomitant breakage of a diphosphate linkage, usually in a nucleoside triphosphate. Catalysis of the reaction: 4 ATP + adenosylcobyrinic acid a,c-diamide + 4 L-glutamine + 4 H2O = 4 ADP + 4 phosphate + adenosylcobyric acid + 4 L-glutamate.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: carbon-nitrogen ligase activity, with glutamine as amido-N-donor
Acc: GO:0016884
Aspect: Molecular Function
Desc: Catalysis of the transfer of the amide nitrogen of glutamine to a variety of substrates. GATases catalyze two separate reactions at two active sites, which are located either on a single polypeptide chain or on different subunits. In the glutaminase reaction, glutamine is hydrolyzed to glutamate and ammonia, which is added to an acceptor substrate in the synthase reaction.
Synonyms:
  • GO:0016003
Proteins in PDR annotated with:
   This term: 56 [Search]
   Term or descendants: 232 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016884 - carbon-nitrogen ligase activity, with glutamine as amido-N-donor (interactive image map)
YRC Informatics Platform - Version 3.0
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