Guanylate kinase

In enzymology, a guanylate kinase (EC2.7.4.8) is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are ATP and GMP, whereas its two products are ADP and GDP.
This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. This enzyme participates in purine metabolism.