RPSBLAST alignment for GI: 254780802 and conserved domain: TIGR00398

>gnl|CDD|161858 TIGR00398, metG, methionyl-tRNA synthetase. The methionyl-tRNA synthetase (metG) is a class I amino acyl-tRNA ligase. This model appears to recognize the methionyl-tRNA synthetase of every species, including eukaryotic cytosolic and mitochondrial forms. The UPGMA difference tree calculated after search and alignment according to this model shows an unusual deep split between two families of MetG. One family contains forms from the Archaea, yeast cytosol, spirochetes, and E. coli, among others. The other family includes forms from yeast mitochondrion, Synechocystis sp., Bacillus subtilis, the Mycoplasmas, Aquifex aeolicus, and Helicobacter pylori. The E. coli enzyme is homodimeric, although monomeric forms can be prepared that are fully active. Activity of this enzyme in bacteria includes aminoacylation of fMet-tRNA with Met; subsequent formylation of the Met to fMet is catalyzed by a separate enzyme. Note that the protein from Aquifex aeolicus is split into an alpha (large) and beta (small) subunit; this model does not include the C-terminal region corresponding to the beta chain. Length = 530
 Score = 76.6 bits (189), Expect = 2e-14
 Identities = 51/217 (23%), Positives = 80/217 (36%), Gaps = 36/217 (16%)

Query: 43  PYPSGNIHMGHLRNYVIGDVVARFMRASGYSVLHPMGWDAFGMPAENAAREHNVHPKMWT 102
           PY +G  H+GH    ++ DV AR+ R  GY VL   G D  G   E  A +  + PK   
Sbjct: 8   PYANGKPHLGHAYTTILADVYARYKRLRGYEVLFVCGTDEHGTKIELKAEQEGLTPKELV 67

Query: 103 YQNIKVMRKQLQSIGLSIDWSKDFA-TCDVDYYHCQQLLFLDFMKHNVIVRKTAQVNWDP 161
            +  +  +   + + +S D    F  T D ++    Q +F    ++  I  K  +  + P
Sbjct: 68  DKYHEEFKDDWKWLNISFD---RFIRTTDEEHKEIVQKIFQKLKENGYIYEKEIKQLYCP 124

Query: 162 VEQTVLANEQV-----------------------------INGRGWRSDAPVEQRSLPQW 192
             +  L +  V                             IN R     A  E R    +
Sbjct: 125 ECEMFLPDRYVEGTCPKCGSEDARGDHCEVCGRHLEPTELINPRCKICGAKPELRDSEHY 184

Query: 193 FFKISDLSQELLDSIETLSE---WPEKVKIMQKNWIG 226
           FF++S   +EL + I    E       VK   +NW+ 
Sbjct: 185 FFRLSAFEKELEEWIRKNPESGSPASNVKNKAQNWLK 221