Valyl-tRNA synthetase Catalyzes the attachment of valine to tRNA(Val). As ValRS can inadvertently accommodate and process structurally similar amino acids such as threonine, to avoid such errors, it has a "posttransfer" editing activity that hydrolyzes mischarged Thr-tRNA(Val) in a tRNA-dependent manner (By similarity). SYV_STAA9 valS MEMKPKYDPREVEAGRYEEWVKNGYFKPSEDKSKETYTIVIPPPNVTGKLHLGHAWDTTLQDIITRMKRMQGYDTLYLPGMDHAGIATQAKVEAKLNEQGITRYDLGREKFLEQAWDWKEEYASFIRAQWAKLGLGLDYSRERFTLDEGLSKAVKKVFVDLYNKGIIYRGERIINWDPKARTALSDIEVIHEDVQGAFYHFKYPYADGEGFIEIATTRPETMLGDTAIVVNPNDERYKDVIGKTVILPIVGRELPILADEYVDIDFGSGAMKVTPAHDPNDFEIGQRHQLENIIVMDENGKMNDKAGKYEGMDRFDCRKQLVKDLKEQDLVIKIEDHVHSVGHSERSGAVVEPYLSTQWFVRMEDLAKRSLDNQKTDDRIDFYPQRFEHTFNQWMENIRDWTISRQLWWGHQIPAWYHKETGEIYVGEEAPTDIENWQQDEDVLDTWFSSALWPFSTLGWPDLESEDFKRYYPTNALVTGYDIIFFWVARMIFQGLEFTDRRPFNDVLLHGLVRAEDGRKMSKSLGNGVDPMDVIDEYGADSLRYFLATGSSPGHDLRYSTEKVESVWNFINKIWNGARFSLMNIGEDFKVEDIDLSGNLSLADKWILTRLNETIATVTDLSDKYEFGEVGRALYNFIWDDFCDWYIEMSKIPMNSNDEEQKQVTRSVLSYTLDNIMRMLHPFMPFVTEKIWQSLPHEGDTIVKASWPEVRESLIFEESKQTMQQLVEIIKSVRQSRVEVNTPLSKEIPILIQAKDKEIETTLSQNKDYLIKFCNPSTLNISTDVEIPEKAMTSVVIAGKVVLPLEGLIDMDKEISRLEKELAKLQSELDRVDKKLSNENFVSKAPEKVINEEKRKKQDYQEKYDGVKARIEQLKA Valine--tRNA ligase 876 SaurJH9_1721