Viruses rely on the canonical cellular translation machinery to translate their own RNAs.
Therefore, it was desirable to develop an ORF57-specific functional assay to test the function of PYM in ORF57-mediated translational enhancement, without effecting cellular translation.
Although these tools differ between different viruses, most of them are built on a common principle: they involve the replacement of cellular translation factors with purpose-built viral factors that are efficient translational activators, and that are also usually highly selective for the viral RNA.
We hypothesized that a common upstream regulator controls cellular translation and miR-146b-5p miR-146b-5p miR-146b-5pways.
Poliovirus, a plus-stranded RNA virus, interferes with this cellular translation process by proteolytically inactivating the cap-binding protein complex.
Involvement of the interferon-regulated antiviral proteins PKR and RNase L in reovirus-induced shutoff of cellular translation.
During cellular translation of messenger RNAs by ribosomes, the translation apparatus sometimes pauses or stalls at the elongation and termination steps1,2,3,4,5,6.
Given that the AKT pathway positively regulates cellular translation, we thus tested the hypothesis that inhibition of AKT could elevate miR-146b-5p miR-146b-5p miR-146b-5p
Increased expression or differential phosphorylation of these initiation factors leads to changes in cellular translation rates, which can result in drastic changes in growth, proliferation, differentiation, and survival.
Such an expansion is demonstrated here by reassignment of the tyrosine codons TAT or TAC to the non-canonical amino acids 3-fluoro-tyrosine and 3-chloro-tyrosine, without change of the cellular translation machinery.
The infection of baby hamster kidney (BHK) cells by Sindbis virus gives rise to a drastic inhibition of cellular translation, while under these conditions the synthesis of viral structural proteins directed by the subgenomic 26 S mRNA takes place efficiently.
