IUBMB Enzyme Nomenclature


Accepted name: ammonia kinase

Reaction: ATP + NH3 = ADP + phosphoramide

Other names: phosphoramidate-adenosine diphosphate phosphotransferase; phosphoramidate-ADP-phosphotransferase

Systematic name: ATP:ammonia phosphotransferase

Comments: Has a wide specificity. In the reverse direction, N-phosphoglycine and N-phosphohistidine can also act as phosphate donors, and ADP, dADP, GDP, CDP, dTDP, dCDP, IDP and UDP can act as phosphate acceptors (in decreasing order of activity).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37278-16-3


1. Dowler, M.J. and Nakada, H.I. Yeast phosphoramidate-adenosine diphosphate phosphotransferase. J. Biol. Chem. 243 (1968) 1434-1440. [PMID: 5647264]

[EC created 1972]

Return to EC 2.7.3 home page
Return to EC 2.7 home page
Return to EC 2 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page