Abstract:
:Kaposi's sarcoma-associated herpesvirus (KSHV) plays a significant role in the development of Kaposi's sarcoma, primary effusion lymphoma, and some forms of multicentric Castleman's disease. The KSHV open reading frame K9 encodes the viral interferon (IFN) factor 1 (vIRF1), which downregulates IFN- and IRF-mediated transcriptional activation, and leads to cellular transformation in rodent fibroblasts and induction of tumors in nude mice. Using the yeast two-hybrid assay, we identified genes associated with retinoid-IFN-induced mortality-19 (GRIM19), which interacts directly with vIRF1, both in vivo and in vitro. The N-terminal region of vIRF1 is required for binding GRIM19. Colocalization of vIRF1 and GRIM19 was observed in 293T cells. The vIRF1 protein deregulates GRIM19-induced apoptosis in the presence of IFN/all-trans-retinoic acid (RA) and inhibits IFN/RA-induced cell death. Another DNA tumor viral protein, human papillomavirus type 16 E6, also binds GRIM19, suggesting that this is a general target of viral proteins. Our results collectively indicate that vIRF1 modulates IFN/RA-cell death signals via interactions with GRIM19.
journal_name
J Viroljournal_title
Journal of virologyauthors
Seo T,Lee D,Shim YS,Angell JE,Chidambaram NV,Kalvakolanu DV,Choe Jdoi
10.1128/jvi.76.17.8797-8807.2002subject
Has Abstractpub_date
2002-09-01 00:00:00pages
8797-807issue
17eissn
0022-538Xissn
1098-5514journal_volume
76pub_type
杂志文章abstract::The varicella-zoster virus major transactivator, IE62, contains a potent N-terminal acidic transcriptional activation domain (TAD). Our experiments revealed that the minimal IE62 TAD encompasses amino acids (aa) 19 to 67. We showed that the minimal TAD interacts with the human Mediator complex. Site-specific mutations...
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journal_title:Journal of virology
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journal_title:Journal of virology
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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
doi:10.1128/JVI.20.1.86-95.1976
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journal_title:Journal of virology
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journal_title:Journal of virology
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更新日期:2016-09-12 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.60.2.506-514.1986
更新日期:1986-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.4.2591-2599.1997
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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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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1993-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.4.2057-2061.2004
更新日期:2004-02-01 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:2003-02-01 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:1971-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.24.12747-12757.2002
更新日期:2002-12-01 00:00:00
abstract::Three late transcripts have been mapped to the vaccinia virus 7.1-kilobase (kb) EcoRI F fragment, which is located approximately 85 kb from the left end of the viral genome. Hybrid selection and translation of RNA have demonstrated that these mRNAs encode three polypeptides with apparent molecular weights of 32,000 (3...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.49.2.510-520.1984
更新日期:1984-02-01 00:00:00
abstract::The degree of genetic variability in the hypervariable region 1 of hepatitis C virus (HCV) was analyzed by cloning and sequencing HCV genomes obtained in paired samples of serum, liver tissue, and peripheral blood mononuclear cells (PBMC) from four chronic hepatitis C patients. Genetic variability in serum was higher ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.2.1640-1646.1998
更新日期:1998-02-01 00:00:00