This enzyme belongs to the family of transferases, specifically those transferring a phosphate group to the sidechain of histidine residues in proteins (protein-histidine kinases). The systematic name of this enzyme class is ATP:protein-L-histidine Ntau-phosphotransferase. Other names in common use include ATP:protein-L-histidine N-tele-phosphotransferase, histidine kinase, histidine protein kinase, protein histidine kinase, protein kinase (histidine), and HK3.
Fujitaki JM, Fung G, Oh EY, Smith RA (1981). "Characterization of chemical and enzymatic acid-labile phosphorylation of histone H4 using phosphorus-31 nuclear magnetic resonance". Biochemistry. 20 (12): 3658–64. doi:10.1021/bi00515a055. PMID7196259.
Huebner VD, Matthews HR (1985). "Phosphorylation of histidine in proteins by a nuclear extract of Physarum polycephalum plasmodia". J. Biol. Chem. 260 (30): 16106–13. PMID4066704.