>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 = 70.7 bits (174), Expect = 1e-12
 Identities = 28/65 (43%), Positives = 40/65 (61%), Gaps = 3/65 (4%)

Query: 585 KSDFLARVSHEIRTPLTAIIGFSEVIKNQRFGPLGNPRYIEYANYIDRSGNLVLDIVNDL 644
           K +FLA VSHE+RTPLTAI G  E+++ +    L +    EY   I      +L ++NDL
Sbjct: 4   KGEFLANVSHELRTPLTAIRGALELLEEE---LLDDEEQREYLERIREEAERLLRLINDL 60

Query: 645 LDISK 649
           LD+S+
Sbjct: 61  LDLSR 65