ID 2.7.13.1 DE protein-histidine pros-kinase. AN histidine kinase. AN histidine protein kinase. AN HK2. AN protein histidine kinase. AN protein kinase (histidine). CA ATP + L-histidyl-[protein] = ADP + H(+) + N(pros)-phospho-L-histidyl- CA [protein]. CC -!- A number of histones can act as acceptor. CC -!- Formerly EC 2.7.3.11. //