RPSBLAST alignment for GI: 254780933 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 = 69.3 bits (170), Expect = 5e-12
 Identities = 82/402 (20%), Positives = 140/402 (34%), Gaps = 86/402 (21%)

Query: 381 IVPHCERSGVTIEPCITEQWYLDAKVLAESAIRSAKNGCLSFIPQSWDKSYY-EWLEN-I 438
           I P C+  G   E   +E ++       +      +    S  P S  K+    WL+  +
Sbjct: 165 INPRCKICGAKPELRDSEHYFFRLSAFEKELEEWIRKNPESGSPASNVKNKAQNWLKGGL 224

Query: 439 QPWCISRQI-WWGHQIPVWYSPDGKLFVENTEDAALRSAIDY--YLSQDNDMTVKVRKMI 495
           +   I+R + +WG  IPV   P+  ++V         + I Y   L   +  T   +K  
Sbjct: 225 KDLAITRDLVYWG--IPVPNDPNKVVYV------WFDALIGYISSLGILSGDTEDWKKWW 276

Query: 496 KDG---NISDLLKRDEDVLDTWFSSALWP--FASLGWPEQTAELKTYYPTSVLVTGFDIL 550
            +     +   + +D       F +  WP     LG P          PT V   G    
Sbjct: 277 NNDEDAELIHFIGKD----IVRFHTIYWPAMLMGLGLP---------LPTQVFSHG---- 319

Query: 551 FFWVARMMMMGLYFMKDAEGKGIEPFHIVYMHALVRDKNGQKMSKSKGNVVDPIDVIDQY 610
                                     ++           G KMSKS GNVVDP D++ ++
Sbjct: 320 --------------------------YLTV--------EGGKMSKSLGNVVDPSDLLARF 345

Query: 611 GADALRFYFSIMAVQGRDINLDLERIAGYRN--FITKFWNAI-RFSKMKNARHSVSFVPQ 667
           GAD LR+Y       G+D +   E      N     K  N + R         +     +
Sbjct: 346 GADILRYYLLKERPLGKDGDFSWEDFVERVNADLANKLGNLLNRTLGFIKKYFNGVLPSE 405

Query: 668 DVKWIVNKWIIKRLATVINDVTVGMENHRFNDVSAVLYRFV------WDELCDWYVEFIK 721
           D+    +K ++K +   +  +   +E+  F      + +         DE   W +    
Sbjct: 406 DITDEEDKKLLKLINEALEQIDEAIESFEFRKALREIMKLADRGNKYIDENKPWELF--- 462

Query: 722 SILNQKDSELVSETLSCFSYVLYNVCKLLHPIIPFVTEDLYS 763
                K S  + E L+  S ++  +  LL+PI+P ++E +  
Sbjct: 463 -----KQSPRLKELLAVCSMLIRVLSILLYPIMPKLSEKILK 499