HHsearch alignment for GI: 254780316 and conserved domain: cd00773

>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.
Probab=96.44  E-value=0.03  Score=35.15  Aligned_cols=90  Identities=12%  Similarity=0.141  Sum_probs=67.0

Q ss_pred             HHHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHHH-H--HHHHHCCCCCCCCCCCCCCCCHHHCHHHHHHHHHCCCCCCHH
Q ss_conf             8954678988787787740232100482576552-0--000000024677643210151221106776432101586113
Q gi|254780316|r  491 QQSRTRYVKRVLASRAMMEVVNWSFISKEQSVLF-G--GGQRELEILNPISADMSNMRTSLLPGLLKATGRNVDRAIADF  567 (805)
Q Consensus       491 ~~~~~~~ir~~L~~~Gf~Ev~tysl~s~~~~~~~-~--~~~~~i~l~NPlS~e~s~lR~SLlp~LL~~~~~N~~r~~~~i  567 (805)
T Consensus         5 r~~i~~~l~~~f~~~Gy~~I~~P~lE~~d~~~~~~~~~~~~~~~~f~D~-~g~~l~LRpD~T~~iaR~~~~~~~~~~~p~   83 (261)
T cd00773           5 RRYIEDTLREVFERYGYEEIDTPVFEYTELFLRKSGDEVSKEMYRFKDK-GGRDLALRPDLTAPVARAVAENLLSLPLPL   83 (261)
T ss_pred             HHHHHHHHHHHHHHCCCEEEECCCCCCHHHHCCCCCCCCHHCEEEEECC-CCCEEEECCCCCHHHHHHHHHHHCCCCCCE
T ss_conf             9999999999999869978667764527675244653102116999979-999897678662799999997415378885


Q ss_pred             HHHHHCCCCCCCCC
Q ss_conf             45430244447775
Q gi|254780316|r  568 AIFEVSHVYENDTP  581 (805)
Q Consensus       568 ~lFEiG~Vf~~~~~  581 (805)
T Consensus        84 r~~Y~g~VfR~~~~   97 (261)
T cd00773          84 KLYYIGPVFRYERP   97 (261)
T ss_pred             EEEEECCEEEECCC
T ss_conf             89997318997689