GMP synthetases are enzymes that catalyze the conversion of XMP to GMP. The two-subunit type GMP synthetases are composed of a glutamine amidotransferase (GATase) subunit that catalyzes the conversion of Gln to Glu and ammonia, and the ATP pyrophosphatase (ATPPase) subunit that catalyzes the formati...
ORGANISM(S): Methanocaldococcus jannaschii DSM 2661