Abstract
The effect of infection with herpes simplex virus (HSV) on the rate of protein synthesis, the distribution of ribosomes, and the time required to complete nascent peptides (transit time) in either actively growing or stationary phase Vero cells was examined. It was shown that the rate of protein synthesis per polysomal ribosome decreased continuously throughout the early portion of the infection cycle. This occurred despite an increase in the accumulation of ribosomes in polysome-like structures that accompanies the onset of synthesis of HSV-specified proteins. Transit-time measurements demonstrated that the rate of polypeptide elongation was not altered after infection. These data are discussed in light of a model that suggests that polysome-like structures are present but not functioning (or functioning very poorly) in HSV infected-cells.
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