>gnl|CDD|119399 cd00082, HisKA, Histidine Kinase A (dimerization/phosphoacceptor) domain; Histidine Kinase A dimers are formed through parallel association of 2 domains creating 4-helix bundles; usually these domains contain a conserved His residue and are activated via trans-autophosphorylation by the catalytic domain of the histidine kinase. They subsequently transfer the phosphoryl group to the Asp acceptor residue of a response regulator protein. Two-component signalling systems, consisting of a histidine protein kinase that senses a signal input and a response regulator that mediates the output, are ancient and evolutionarily conserved signaling mechanisms in prokaryotes and eukaryotes.. Length = 65

 Score = 66.1 bits (162), Expect = 4e-11
 Identities = 28/68 (41%), Positives = 44/68 (64%), Gaps = 3/68 (4%)

Query: 540 NKTKSEFLAKMSHELRTPLNAILGFSEVIKKEIFGELGSVKYYEYAQDIHYSGQHLLNMI 599
            + K EFLA +SHELRTPL AI G  E++++E+   L   +  EY + I    + LL +I
Sbjct: 1   LQAKGEFLANVSHELRTPLTAIRGALELLEEEL---LDDEEQREYLERIREEAERLLRLI 57

Query: 600 NNILEMSK 607
           N++L++S+
Sbjct: 58  NDLLDLSR 65