Specific tyrosylation of the bulky tRNA-like structure of brome mosaic virus RNA relies solely on identity nucleotides present in its amino acid-accepting domain.

Abstract excerpt

Residues specifying aminoacylation by yeast tyrosyl-tRNA synthetase (TyrRS) of the tRNA-like structure present at the 3'-end of brome mosaic virus (BMV) RNA were determined by the in vitro approach using phage T7 transcripts. They correspond to nucleotides equivalent to base-pair C1-G72 and discriminator base A73 in the amino acid-acceptor branch of the molecule. No functional equivalents of the tyrosine...

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