Summary
Cell-free translation systems were prepared from uninfected and vaccinia infected (3 and 5 hours post-infection) L929 cells. The systems were made mRNA dependent in order to translate exogenous mRNA mixtures. The overall rate of protein synthesis was similar in the three translation systems. However, one-dimensional electrophoresis showed that the systems differed in terms of the translation efficiency for individual mRNAs. This could be demonstrated with each of the following mRNA mixtures: early vaccinia mRNA synthesized by vaccinia coresin vitro, mRNA isolated from polysomes of vaccinia infected HeLa cells (“late” vaccinia mRNA) and cytoplasmic ascites mRNA.
When the above mentioned groups of mRNAs were allowed to compete for translation in the cell-free systems and their products were analyzed on one-dimensional gels, the following order of translational efficiency was observed: the most prominent species of vaccinia early mRNA (other species could not be judged) were translated better than some late vaccinia mRNA species which in turn were slightly more efficiently translated than cellular mRNAs.
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Tas, P.W.L. Translation of vaccinia virus and cellular mRNA in cell-free systems prepared from uninfected and vaccinia virus infected L929 cells. Archives of Virology 80, 83–101 (1984). https://doi.org/10.1007/BF01310651
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DOI: https://doi.org/10.1007/BF01310651