Catalytic activity:ATP + UTP + NH(3) = ADP + phosphate + CTP.,enzyme regulation:Activated by GTP and inhibited by CTP.,Function:Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen.,pathway:Pyrimidine metabolism; CTP biosynthesis via de novo pathway; CTP from UDP: step 2/2.,similarity:Belongs to the CTP synthase family.,similarity:Contains 1 glutamine amidotransferase type-1 domain.,
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