RPSBLAST alignment for GI: 254780445 and conserved domain: cd00814
>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 = 64.1 bits (157), Expect = 2e-10
Identities = 53/226 (23%), Positives = 88/226 (38%), Gaps = 61/226 (26%)
Query: 441 IFRTTSQWFLHMDKKLGDGSTLRSRALSEVEK--IRFFPSSGKNRLRSMIENR-PDWLLS 497
+R +F + K + R L +EK +P + +N + S ++ D ++
Sbjct: 133 EWREEEHYFFRLSK-------FQDRLLEWLEKNPDFIWPENARNEVLSWLKEGLKDLSIT 185
Query: 498 RQR-NWGVPICFFYNEKGEILLDKAIN--DRIIKTFKDQGSDAWFSEGSRD--FFLGDRA 552
R +WG+P+ + + D I ++ G+ W+ +G + F+G
Sbjct: 186 RDLFDWGIPVPLDPGKVIYVWFDALIGYISATGYYNEEWGNSWWWKDGWPELVHFIG--- 242
Query: 553 SEPWIQSKDILDVWFDSACTHTILLGKDPKLAWPADVYLEGSDQHRGWFQHSLLESCATR 612
KDI + F H I WPA
Sbjct: 243 -------KDI--IRF-----HAIY--------WPA-------------MLLGA------- 260
Query: 613 GSTPFTSLITHGFSVDENGEKMSKSKGNVVFPEEIISESGADVLRY 658
G T ++ HG+ E G+KMSKS+GNVV P++++ GAD LRY
Sbjct: 261 GLPLPTRIVAHGYLTVE-GKKMSKSRGNVVDPDDLLERYGADALRY 305