HHsearch alignment for GI: 254780419 and conserved domain: cd00768

>cd00768 class_II_aaRS-like_core Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA synthetases (aaRS) share a common fold and generally attach an amino acid to the 3' OH of ribose of the appropriate tRNA. PheRS is an exception in that it attaches the amino acid at the 2'-OH group, like class I aaRSs. These enzymes are usually homodimers. This domain is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. The substrate specificity of this reaction is further determined by additional domains. Intererestingly, this domain is also found is asparagine synthase A (AsnA), in the accessory subunit of mitochondrial polymerase gamma and in the bacterial ATP phosphoribosyltransferase regulatory subunit HisZ.
Probab=90.09  E-value=0.022  Score=36.55  Aligned_cols=53  Identities=28%  Similarity=0.490  Sum_probs=37.6

Q ss_pred             HHCCCEEEC-----CEEECCCCEECCCHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHCCCCCCCCEECCHHHH
Q ss_conf             313677775-----67721251231569999999998599989998667789999860849734222468999
Q gi|254780419|r  479 AFQYDLVCN-----GFEIASGGIRNHMSEVMLQAFSNVGISKEVVENRFGGLYRAFQCGMPPHGGIAAGIDRI  546 (622)
Q Consensus       479 a~~YDLVlN-----G~EiggGSiRIHd~~iQ~~~f~~lgl~~ee~~~~Fg~lL~Al~yG~PPHgG~alGlDRl  546 (622)
T Consensus       154 ~~~~Die~~~p~~~~~Ev~s~~~~~---d~qsr~~~i~------------y~~~dg~~~~~~~~~~gl~v~Rl  211 (211)
T cd00768         154 GPGFEIEVDHPEGRGLEIGSGGYRQ---DEQARAADLY------------FLDEALEYRYPPTIGFGLGLERL  211 (211)
T ss_pred             EEEEEEEEECCCCCEEEEECEECCC---CHHHHHCCCE------------EECCCCCEEEEEEEECEECCCCC
T ss_conf             3545578983789799993546167---7878846989------------99999999875563032413669