Phosphotransferase (Molecular Biology)

Phosphotransferases form a large group of enzymes that are involved with the transfer of a g-phosphoryl group from ATP, or another nucleoside triphosphate, to an acceptor molecule (see Kinase). They are divided into groups according to the identity of the phosphoryl group acceptor. These acceptors can be alcohols and carboxylic acids, as well as nitrogenous and phosphorylated compounds . All phosphotransferases have an essential requirement for a bivalent metal ion (see Metal-Requiring Enzymes).