>gnl|CDD|173907 cd00814, MetRS_core, catalytic core domain of methioninyl-tRNA synthetases. Methionine tRNA synthetase (MetRS) catalytic core domain. This class I enzyme aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. MetRS, which consists of the core domain and an anti-codon binding domain, functions as a monomer. However, in some species the anti-codon binding domain is followed by an EMAP domain. In this case, MetRS functions as a homodimer. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. As a result of a deletion event, MetRS has a significantly shorter core domain insertion than IleRS, ValRS, and LeuR. Consequently, the MetRS insertion lacks the editing function. Length = 319

 Score = 49.5 bits (119), Expect = 4e-06
 Identities = 35/131 (26%), Positives = 51/131 (38%), Gaps = 23/131 (17%)

Query: 46  PNVTGSLHMGHAFNTTIQDIMIRFERMRGKNVLWQPGTDHAGIATQITVESRLFAQSSLT 105
           P V G  H+GH + T + D+  R++R+RG +VL+  GTD  G   +   E          
Sbjct: 9   PYVNGVPHLGHLYGTVLADVFARYQRLRGYDVLFVTGTDEHGTKIEQKAEE--------- 59

Query: 106 REDIGRDAFIEKVWEWKKESGGSILSQLKRLGASCDWSRERF--TMDEGMSNAVRNAFVV 163
            E +      +K  E             K L  S D     F  T        V+  F  
Sbjct: 60  -EGVTPQELCDKYHE-------IFKDLFKWLNISFD----YFIRTTSPRHKEIVQEFFKK 107

Query: 164 LYKDGLIYRDK 174
           LY++G IY  +
Sbjct: 108 LYENGYIYEGE 118