Abstract:
:The Epstein-Barr virus (EBV) is a ubiquitous B-lymphotropic herpesvirus associated with several malignant tumors, e.g., Burkitt's lymphoma and Hodgkin's disease, and is able to efficiently immortalize primary B lymphocytes in vitro. The growth program of infected B cells is initiated and maintained by the viral transcription factor EBV nuclear antigen 2 (EBNA2), which regulates viral and cellular genes, including the proto-oncogene c-myc. In our study, patterns of protein expression in B cells with and without EBNA2 were analyzed by two-dimensional polyacrylamide gel electrophoresis and mass spectrometry. For this purpose, we used a conditional immortalization system for EBV, a B cell line (EREB2-5) that expresses an estrogen receptor-EBNA2 fusion protein. In order to discriminate downstream targets of c-Myc from c-Myc-independent EBNA2 targets, we used an EREB2-5-derived cell line, P493-6, in which c-Myc is expressed under the control of a tetracycline-regulated promoter. Of 20 identified EBNA2 target proteins, 11 were c-Myc dependent and therefore most probably associated with proliferation, and one of these proteins was a posttranslationally modified protein, i.e., hypusinylated eIF5a. Finally, to estimate the relevance of EBNA2 targets during early EBV infection, we analyzed the proteomes of primary B cells before and after infection with EBV. The protein expression pattern induced upon EBV infection was similar to that following EBNA2 activation. These findings underscore the value of EREB2-5 cells as an appropriate model system for the analysis of early events in the process of EBV-mediated B-cell immortalization.
journal_name
J Viroljournal_title
Journal of virologyauthors
Schlee M,Krug T,Gires O,Zeidler R,Hammerschmidt W,Mailhammer R,Laux G,Sauer G,Lovric J,Bornkamm GWdoi
10.1128/jvi.78.8.3941-3952.2004subject
Has Abstractpub_date
2004-04-01 00:00:00pages
3941-52issue
8eissn
0022-538Xissn
1098-5514journal_volume
78pub_type
杂志文章abstract::The phenotypic defects of two mutants of vaccinia virus, the lesions of which map to gene G2R, were characterized in vivo, and the results suggest a role for the G2R protein in viral transcription elongation. Both a temperature-sensitive mutant, Cts56, and an isatin-beta-thiosemicarbazone-dependent deletion mutant, G2...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.1.47-54.1996
更新日期:1996-01-01 00:00:00
abstract::Inhibition of histone deacetylase (HDAC) activity induces growth arrest, differentiation, and, in certain cell types, apoptosis. FR901228, FK228, or depsipeptide, is an HDAC inhibitor effective in T-cell lymphomas. Adult T-cell leukemia (ATL) is caused by human T-cell leukemia virus type 1 (HTLV-1) and remains incurab...
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pub_type: 杂志文章,收录出版
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更新日期:2004-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.7603-7613.1996
更新日期:1996-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.16.9041-9051.2003
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abstract:UNLABELLED:Kaposi's sarcoma-associated herpesvirus (KSHV) typically displays two different phases in its life cycle, the default latent phase and the lytic phase. There is a short period of lytic gene expression in the early stage of KSHV primary infection. The factors involved in the shutdown process of lytic gene exp...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00596-14
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.61.2.405-410.1987
更新日期:1987-02-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.3.1438-1451.2005
更新日期:2005-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.6.2575-2583.2001
更新日期:2001-03-01 00:00:00
abstract::Rift Valley fever virus (RVFV), a phlebovirus of the Bunyaviridae family, is an arthropod-borne virus which emerges periodically throughout Africa, emphasizing that it poses a major threat for animal and human populations. To assess the genetic variability of RVFV, several isolates from diverse localities of Africa we...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.10.8196-8200.1999
更新日期:1999-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.10.4303-4310.1989
更新日期:1989-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01144-18
更新日期:2019-01-17 00:00:00
abstract::The influenza A virus (IAV) M2 protein is a multifunctional protein with critical roles in virion entry, assembly, and budding. M2 is targeted to the apical plasma membrane of polarized epithelial cells, and the interaction of the viral proteins M2, M1, HA, and NA near glycolipid rafts in the apical plasma membrane is...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01425-18
更新日期:2018-10-29 00:00:00
abstract::Sensory neurons within trigeminal ganglia (TG) are the primary site for bovine herpesvirus 1 (BHV-1) latency. During latency, viral gene expression is restricted to the latency-related (LR) gene and the open reading frame ORF-E. We previously constructed an LR mutant virus that expresses LR RNA but not any of the know...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01009-09
更新日期:2009-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01771-14
更新日期:2014-10-01 00:00:00
abstract::We report here the complete genomic sequence of the duck Tembusu virus (DTMUV) WJ-1 strain, isolated from Muscovy ducks. This is the first complete genome sequence of DTMUV reported in southern China. Compared with the other strains (TA, GH-2, YY5, and ZJ-407) that were previously found in eastern China, WJ-1 bears a ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02361-12
更新日期:2012-12-01 00:00:00
abstract::Genetic conflicts between retroviruses and their receptors result in the evolution of novel host entry restrictions and novel virus envelopes, and such variants can influence trans-species transmission. We screened rodents and other mammals for sequence variation in the Xpr1 receptor for the mouse xenotropic or polytr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01549-10
更新日期:2010-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00160-07
更新日期:2007-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.22.10683-10695.2001
更新日期:2001-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.69.9.5550-5559.1995
更新日期:1995-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00526-18
更新日期:2018-08-29 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.5.2627-2631.2004
更新日期:2004-03-01 00:00:00
abstract::H2dl808 is a defective deletion mutant of human adenovirus 2 lacking most of transcriptional early region 4. Although the mutant can be grown in the complementing cell line W162, it is defective in human cell lines normally used to propagate adenovirus. In such nonpermissive cells, H2dl808 exhibits a severe defect in ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.57.3.833-838.1986
更新日期:1986-03-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.3.608-613.1974
更新日期:1974-03-01 00:00:00
abstract:UNLABELLED:Virions vary in size by at least 4 orders of magnitude, yet the evolutionary forces responsible for this enormous diversity are unknown. We document a significant allometric relationship, with an exponent of approximately 1.5, between the genome length and virion volume of viruses and find that this relation...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00362-14
更新日期:2014-06-01 00:00:00
abstract::We previously reported that CD4C/human immunodeficiency virus (HIV)(Nef) transgenic (Tg) mice, expressing Nef in CD4(+) T cells and cells of the macrophage/dendritic cell (DC) lineage, develop a severe AIDS-like disease, characterized by depletion of CD4(+) T cells, as well as lung, heart, and kidney diseases. In orde...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00125-09
更新日期:2009-10-01 00:00:00
abstract::Rotavirus plus-strand RNAs not only direct protein synthesis but also serve as templates for the synthesis of the segmented double-stranded RNA (dsRNA) genome. In this study, we identified short-interfering RNAs (siRNAs) for viral genes 5, 8, and 9 that suppressed the expression of NSP1, a nonessential protein; NSP2, ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.14.7763-7774.2004
更新日期:2004-07-01 00:00:00
abstract::Phage 2 adsorbed to Pseudomonas aeruginosa strain BI in 5 mM Tris buffer, providing that cations like Na(+), Mg(2+), or Ca(2+) were present. Adsorption was observed over a broad pH range, reaching a maximum level around pH 7.5, which coincided with the pH required for maximal activity of the phage 2-associated slime p...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.1.22-27.1974
更新日期:1974-01-01 00:00:00
abstract::Different tombusviruses were able to support the replication of either homologous or heterologous defective interfering (DI) RNAs, and those infected plants usually developed typical attenuated symptoms. However, in some helper virus-DI RNA combinations the inoculated plants were necrotized, although they contained a ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.7.6251-6256.1998
更新日期:1998-07-01 00:00:00
abstract::Interactions between host factors and the viral replication complex play important roles in host adaptation and regulation of influenza virus replication. A cellular protein, nuclear factor 90 (NF90), was copurified with H5N1 viral nucleoprotein (NP) from human cells in which NP was transiently expressed and identifie...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00735-09
更新日期:2009-08-01 00:00:00