6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal - - 6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal Lys593 and Lys554 are in the active site binding valine or threonine, part of the 554KMSKS558 consensus sequence, mechanism, determination of diverse amino acid residues of the enzyme molecule involved in substrate binding, Lys277 plays a crucial role in the fidelity of tRNA aminoacylation by the enzyme, nucleophilic attack of misacylated tRNA in the diting site of the enzyme 650122 6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal mechanism and structural basis of molecular interactions of the enzyme with the C34A35C36 anticodon for tRNAVal recognition by the enzyme 653871 6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal pre- and post-transfer editing mechanism, mechanism, active site/editing site 650777 6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal substrate binding mechanism, bases A73 and C75 are involved in the tRNA substrate recognition and editing reaction 653390 6.1.1.9 ATP + L-valine + tRNAVal = AMP + diphosphate + L-valyl-tRNAVal tRNAVal 3'-end, and a purine at position 76, is crucial for substrate editing mechanism 650085