volume 29, issue 20, P4125-4133 2001
DOI: 10.1093/nar/29.20.4125
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Abstract: Identity elements play essential roles in the recognition of tRNAs by their cognate aminoacyl-tRNA synthetase. An operational RNA code relates amino acids to specific sequences and structural features of tRNA acceptor stems. In this study, a series of tRNA(Trp) variants was prepared by in vitro transcription and their efficiencies of aminoacylation by tryptophan (k(cat)/K(m)) were measured with the aid of Bacillus subtilis and human tryptophanyl-tRNA synthetases (TrpRS). The identity elements in the operationa…

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