>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 = 105 bits (264), Expect = 3e-23 Identities = 86/353 (24%), Positives = 148/353 (41%), Gaps = 73/353 (20%) Query: 15 YPNAQPHIGHAYEMIIADVLARFHRLDGLDVLFTTGTDEHGQKIA-KAAQNAGVTTKVFV 73 Y N PH GHA I+ D++ R+ + G V G D HG I K + G++ K Sbjct: 11 YANGLPHYGHALNKILKDIINRYKTMQGYYVPRRPGWDCHGLPIELKVEKELGISGK--- 67 Query: 74 DQNSRNFRDMADVLDISYDDFI---RTTEKRHHDTCRILWKKISDKGDIYKGCY------ 124 D+ + +F R R+ D ++++ D ++ Y Sbjct: 68 ----------KDIEKMGIAEFNAKCREFALRYVDEQEEQFQRLGVWVD-WENPYKTMDPE 116 Query: 125 ---SGWYSLRDEAYYNDDEVYKGADGQYYNAQHNPV------QWMEEEGYFFRLSAYQDK 175 S W+ + + +Y+G + P+ QW F R++ +D+ Sbjct: 117 YMESVWWVFK--QLHEKGLLYRGYKVVPW-----PLIYRATPQW------FIRVTKIKDR 163 Query: 176 LLSYYES---HPEFILPIERRNEVISFVKSGLKDLSLSRKTFDWGIKIP----DDP---- 224 LL + PE++ +N ++++ +D +SR+ + WG IP +D Sbjct: 164 LLEANDKVNWIPEWV-----KNRFGNWLE-NRRDWCISRQRY-WGTPIPVWYCEDCGEVL 216 Query: 225 ----QYIMYVWIDALTNYLTTTGYLDNPDGSKAKFWPADLHVIGKDILR--FHAIYWPAF 278 ++ VW D+ + Y + + +PAD + G D R F+++ + Sbjct: 217 VRRVPDVLDVWFDSGSMPYAQLHYPFENEDFEEL-FPADFILEGSDQTRGWFYSLLLLST 275 Query: 279 LLSANLPLPKKVFSHGFIL-HKGEKISKSLGNVIDPIEVIEEVGVDALRYFLV 330 L P K V HGF+L G K+SKSLGN +DP EV+++ G DALR ++ Sbjct: 276 ALFGKAPY-KNVIVHGFVLDEDGRKMSKSLGNYVDPQEVVDKYGADALRLWVA 327

RPSBLAST alignment for GI: 255764461 and conserved domain: cd00818