Histidine kinase.

Histidine kinase
Histidine kinase
Histidine kinase
Histidine kinase
ATP-binding protein, ATPase-like:Histidine kinase, HAMP region:Histidine kinase A, N-terminal:Bacterial sensor protein C-term... (NCBI)
Histidine kinase
Histidine kinase
Potassium channel histidine kinase domain protein/universal stress protein
Histidine kinase
Histidine kinase