Charging of tRNA with non-natural amino acids at high pressure.

Abstract

We show a simple and reliable method of tRNA aminoacylation with natural, as well as non-natural, amino acids at high pressure. Such specific and noncognate tRNAs can be used as valuable substrates for protein engineering. Aminoacylation yield at high pressure depends on the chemical nature of the amino acid used and it is up to 10%. Using CoA, which carries two potentially reactive groups -SH and -OH, as a model compound we showed that at high pressure amino acid is bound preferentially to the hydroxyl group of the terminal ribose ring.

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