RPSBLAST alignment for GI: 254781004 and conserved domain: cd00773
>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 = 42.1 bits (99), Expect = 4e-04
Identities = 35/166 (21%), Positives = 55/166 (33%), Gaps = 34/166 (20%)
Query: 274 KIFQTLISYMRRKIKDDYEEINTPQVLDQHLWQQSGHWDSYRANMFAVKCADDTIKDL-- 331
I TL R YEEI+TP +F K D+ K++
Sbjct: 7 YIEDTLREVFERY---GYEEIDTPVF--------------EYTELFLRKSGDEVSKEMYR 49
Query: 332 ------RTFALKPMNCPGHVAVFNHGLKSYRELPVRLAEFGSVYRNEPSGSLHGLMRVRG 385
R AL+P LP++L G V+R E R R
Sbjct: 50 FKDKGGRDLALRPDLTAPVARAVAEN-LLSLPLPLKLYYIGPVFRYERPQKG----RYRE 104
Query: 386 FTQDDAHVFCTKEQMFN-ECLKIHNLIISIYKDFGFEKIMVKLSTR 430
F Q + + + + E + L + I + G + +K++ R
Sbjct: 105 FYQVGVEIIGSDSPLADAEVIA---LAVEILEALGLKDFQIKINHR 147