Abstract:
:Human cells infected with adenovirus type 2 (Ad2) or Ad5 require VAI RNA for efficient translation of viral mRNAs at late times after infection. The Ad5 mutant dl-sub720 synthesized neither virus-associated I (VAI) nor VAII RNAs, and infection of human cells with this mutant resulted in reduced virion polypeptide synthesis. Infection of monkey cells with this mutant also resulted in drastic reduction of polypeptide synthesis compared with wild-type (WT) adenovirus infections. Steady-state levels of hexon-specific mRNA were found to be comparable in WT- and mutant-infected monkey cells. The in vitro translation experiments showed that double-mutant- and WT-infected cells contained comparable levels of translatable hexon mRNA (and other adenovirus late mRNAs), suggesting that the severe inhibition of hexon protein synthesis in the VA mutant involves a translation block. Preinfection of monkey cells with simian virus 40 fully restored the efficient translation of this mRNA in the VA mutant infections to the level observed in WT-infected cultures. These results raise the possibility that simian virus 40 may encode or induce factors that suppress the translation block that occurs during adenovirus infections in the absence of the VA RNAs.
journal_name
J Viroljournal_title
Journal of virologyauthors
Subramanian S,Bhat RA,Rundell MK,Thimmappaya Bdoi
10.1128/JVI.60.2.363-368.1986subject
Has Abstractpub_date
1986-11-01 00:00:00pages
363-8issue
2eissn
0022-538Xissn
1098-5514journal_volume
60pub_type
杂志文章abstract::We have obtained a polyclonal antiserum, N-BE, against the denatured, amino-terminal half of the measles virus (MV) nucleocapsid (N) protein and a monoclonal antibody (MAb), N46, which recognizes a conformation-dependent epitope in the same region. Amino acid residues 23 to 239 were required and sufficient for the for...
journal_title:Journal of virology
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/JVI.34.3.764-771.1980
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1128/JVI.58.2.536-541.1986
更新日期:1986-05-01 00:00:00
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pub_type: 杂志文章
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更新日期:2010-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1997-10-01 00:00:00
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pub_type: 杂志文章
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