>gnl|CDD|73226 cd00773, HisRS-like_core, Class II Histidinyl-tRNA synthetase (HisRS)-like catalytic core domain. HisRS is a homodimer. It is responsible for the attachment of histidine to the 3' OH group of ribose of the appropriate tRNA. This domain is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. Class II assignment is based upon its structure and the presence of three characteristic sequence motifs. This domain is also found at the C-terminus of eukaryotic GCN2 protein kinase and at the N-terminus of the ATP phosphoribosyltransferase accessory subunit, HisZ. HisZ along with HisG catalyze the first reaction in histidine biosynthesis. HisZ is found only in a subset of bacteria and differs from HisRS in lacking a C-terminal anti-codon binding domain.. Length = 261

 Score = 42.9 bits (101), Expect = 2e-04
 Identities = 29/105 (27%), Positives = 42/105 (40%), Gaps = 9/105 (8%)

Query: 53  VNAIIREEQNRTGAIEMSVPTLQSADLWVESGRYDSYGKEMLRLADRNDKAMIYGPTHEE 112
           +   +RE   R G  E+  P  +  +L       D   KEM R  D+  + +   P   +
Sbjct: 8   IEDTLREVFERYGYEEIDTPVFEYTEL-FLRKSGDEVSKEMYRFKDKGGRDLALRP---D 63

Query: 113 VMTDIFR--SHIKSYRNLPFTFYQIQLKFRDELRPRFGVMRSREF 155
           +   + R  +       LP   Y I   FR E RP+ G  R REF
Sbjct: 64  LTAPVARAVAENLLSLPLPLKLYYIGPVFRYE-RPQKG--RYREF 105