The adenovirus type 5 E1B-55K oncoprotein actively shuttles in virus-infected cells, whereas transport of E4orf6 is mediated by a CRM1-Independent mechanism

被引:44
作者
Dosch, T
Horn, F
Schneider, G
Krätzer, F
Dobner, T
Hauber, J
Stauber, RH
机构
[1] Univ Erlangen Nurnberg, Inst Clin & Mol Virol, D-91054 Erlangen, Germany
[2] Univ Regensburg, Inst Med Mikrobiol & Hyg, D-93053 Regensburg, Germany
关键词
D O I
10.1128/JVI.75.12.5677-5683.2001
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The E1B-55K and E4orf6 proteins of adenovirus type 5 are involved in viral mRNA export. Here we demonstrate that adenovirus infection does not inhibit the function of the E1B-55K nuclear export signal and that E1B-55K also shuttles in infected cells, Even during virus infection, E1B-55K was exported by the leptomycin B-sensitive CRM1 pathway, whereas E4orf6 transport appeared to be mediated by an alternative mechanism. Our results strengthen the potential role of E1B-55K as the "driving force" for adenoviral late mRNA export.
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收藏
页码:5677 / 5683
页数:7
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