Fig. 1. Generation of a random mutation library of Sc YRS at P320 and D321 residues.
Fig. 2. Amber suppression activity of mutant YRS clones.
Fig. 3. Tyrosylation kinetics of wild type YRS and mYRS-3 to fMam tRNACUA.
Table 1. Amino acid sequences of mutant YRS and their IC50 values of chloramphenicol
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