>gnl|CDD|173909 cd00818, IleRS_core, catalytic core domain of isoleucyl-tRNA synthetases. Isoleucine amino-acyl tRNA synthetases (IleRS) catalytic core domain . This class I enzyme is a monomer which aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. 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. IleRS has an insertion in the core domain, which is subject to both deletions and rearrangements. This editing region hydrolyzes mischarged cognate tRNAs and thus prevents the incorporation of chemically similar amino acids. Length = 338

Score = 86.5 bits (215), Expect = 3e-17 Identities = 62/273 (22%), Positives = 85/273 (31%), Gaps = 107/273 (39%) Query: 404 QAVMSHLEKQNIKNSPIGKRKINF--RLRDWCISRQRSWGCPIPVIHCQKCGIVELPKED 461 ++ +K N + R N+ RDWCISRQR WG PIPV +C+ CG Sbjct: 162 DRLLEANDKVNWIPEWVKNRFGNWLENRRDWCISRQRYWGTPIPVWYCEDCG-------- 213 Query: 462 LPVQLPEDLDFTLPGNPLENHPTWKKIFCVKCGSEALRETDTMDTFVDS--SWYYMRYMT 519 ++ R D +D + DS Y Sbjct: 214 -------------------------EVLVR-------RVPDVLDVWFDSGSMPYAQ---- 237 Query: 520 PHAKDPINKELVRQWFPVDQYIGGIEHA-----VLHLLYARFFAHILKKIGYIEIDEPFK 574 P E + FP D + G + L LL F P+K Sbjct: 238 --LHYPFENEDFEELFPADFILEGSDQTRGWFYSLLLLSTALFGKA-----------PYK 284 Query: 575 RLFTQGMVVHETYYQLEGIKKKYLKPDEVILRNIEGENCAFRLSDNSKVVIGPLEKMSKS 634 + G V+ E +G KMSKS Sbjct: 285 NVIVHGFVLDE-----------------------DGR------------------KMSKS 303 Query: 635 KKNVIDPMKVIKSYGADTARLFVLSDSPPDRDI 667 N +DP +V+ YGAD RL+V S D+ Sbjct: 304 LGNYVDPQEVVDKYGADALRLWVASSDVYAEDL 336

RPSBLAST alignment for GI: 254780802 and conserved domain: cd00818