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  • 1
    Electronic Resource
    Electronic Resource
    Hepatitis C virus core protein: intriguing properties and functional relevance (2001)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 202 (2001), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Hepatitis C virus (HCV) often causes a prolonged and persistent infection, and an association between hepatocellular carcinoma (HCC) and HCV infection has been noted. The pathogenesis of liver damage is at least in part related to virus-mediated factors. Understanding the molecular basis of pathogenesis is a major challenge in gaining insight into HCV-associated disease progression. Recent experimental evidence using HCV cloned genomic regions suggests that the core protein has numerous functional activities. These include its likely role in encapsidation of viral RNA, a regulatory effect on cellular and unrelated viral promoters, interactions with a number of cellular proteins, an modulatory role in programmed cell death or apoptosis under certain conditions, involvement in cell growth promotion and immortalization, induction of HCC in transgenic mice, and a possible immunoregulatory role. These intriguing properties suggest that the core protein, in concert with cellular factors, may contribute to pathogenesis during persistent HCV infection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.2001.tb10796.x
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  • 2
    Electronic Resource
    Electronic Resource
    Inhibition of human immunodeficiency virus type 1 replication by a cellular transcriptional factor MBP-1 (1997)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 64 (1997), S. 565-572 
    Details
    ISSN: 0730-2312
    Keywords: transcriptional regulation ; HIV-1 ; replication ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: A cellular transcriptional factor initially identified as the c-myc promoter binding protein (MBP-1) was subsequently characterized as a cell regulatory protein with multifunctional activities. In this study, the role of MBP-1 on human immunodeficiency virus type-1 (HIV-1) transcriptional activity was investigated. MBP-1 showed inhibition of HIV-1 long terminal repeat (LTR)-directed chloramphenicol acetyl transferase (CAT) activity in a transient cotransfection assay. Deletion of upstream elements of the HIV-1 LTR, including the nuclear factor kappa B (NF-kB) and Sp1 binding sites, did not affect the MBP-1 mediated suppression of HIV-1 LTR. The core promoter of the HIV-1 appeared to be the primary sequence involved in MBP-1 mediated inhibition. In the presence of HIV-1 TAR sequence and Tat protein, MBP-1 did not inhibit the viral promoter activity. In addition, cotransfection experiments with HIV-1 LTR and deletion mutants of MBP-1 suggested that the carboxyl terminal half of MBP-1 suppresses the HIV-1 promoter activity. Exogenous expression of MBP-1 showed suppression of HIV-1 replication in acutely infected cells and in cells cotransfected with a molecular clone of HIV-1. These results suggest that exogenous expression of MBP-1 plays an important role in the regulation of HIV-1 replication in infected cells. J. Cell. Biochem. 64:565-572. © 1997 Wiley-Liss, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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