Fig. 6: Frameshift products observed in the LC-MS analysis of the peptides synthesized in a cell-free translation system containing either the natural tRNA extract, the hybrid-SL tRNA set, or the hybrid-SL tRNA set minus one chimeric tRNA.

Observed peptides produced by frameshifts in the M2 and M3 mRNAs are displayed. The possible mechanisms of frameshifts are presented in Supplementary Fig. 31. Abbreviations: UTR, untranslated region; SL - Ser/Leu-swapped.