Abstract:Reprogramming of the genetic code system is limited by the difficulty in creating new tRNA structures. Here, I developed translationally active tRNA variants tagged with a small hairpin RNA aptamer, using Escherichia coli reporter assay systems. As the tRNA chassis for engineering, I employed amber suppressor variants of allo-tRNAs having the 9/3 composition of the 12-base pair amino-acid acceptor branch as well as a long variable arm (V-arm). Although their V-arm is a strong binding site for seryl-tRNA synthe… Show more
This Special Issue is intended to highlight recent advances in genetic code expansion, particularly the site-specific incorporation of noncanonical amino acids (ncAAs) into proteins [...]
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