Abstract
The inhibition of protein synthesis by cycloheximide markedly stimulated adenovirus 2 early transcription (assayed in vivo and in vitro in nuclei) when the drug was added 3 h after infection of HeLa cells. The stimulation was not uniform but ranged from three- to eightfold for region 1A to 10- to 30-fold for region 2 of the adenovirus genome. The increase was complete by about 60 min after treatment. The stimulation reversed rapidly after cycloheximide was removed. Treatment with cycloheximide either before infection with wild-type adenovirus type 5 or at 3 h after infection with dl312, a mutant which fails to express early gene products in HeLa cells, both resulted in levels of transcription at or substantially below the control (infection with wild-type adenovirus without treatment). Therefore we conclude that cycloheximide treatment and previous early gene expression interact to yield the maximum levels of transcription.
Publisher
American Society for Microbiology
Subject
Virology,Insect Science,Immunology,Microbiology
Cited by
67 articles.
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