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   L-histidyl-[protein] + ATP = N(pros)-phospho-L-histidyl-[protein] + ADP +
CA   H(+).
CC   -!- A number of histones can act as acceptor.
CC   -!- Formerly EC 2.7.3.11.
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