Abstract:
:In immunocompromised patients, infection with Kaposi's sarcoma-associated herpesvirus (KSHV) can give rise to Kaposi's sarcoma and several lymphoproliferative disorders. In these tumors, KSHV establishes a latent infection in many of the rapidly proliferating and morphologically abnormal cells. Only a few viral gene products are expressed by the latent virus, and one of the best characterized is the latency-associated nuclear antigen (LANA), a nuclear protein required for the maintenance of viral episomal DNA in the dividing host cell. LANA can also activate or repress an assortment of cellular and viral promoters and may contribute to pathogenesis by allowing the proliferation and survival of host cells. Here we show that activation of the human E2F1 and cyclin-dependent kinase-2 (CDK2) promoters requires elements from both the N- and C-terminal regions of LANA. Deletion of the first 22 amino acids, which are necessary for episome tethering, does not affect nuclear localization but significantly reduces transactivation. Within the deleted peptide, we have identified a short sequence, termed the chromatin-binding motif (CBM), that binds tightly to interphase and mitotic chromatin. A second chromatin-binding activity resides in the C terminus but is not sufficient for optimal transactivation. Alanine substitutions within the CBM reveal a close correlation between the transactivation and chromatin binding activities, implying a mechanistic link. In contrast to promoter activation, we find that the 223 amino acids of the LANA C terminus are sufficient to inhibit p53-mediated activation of the human BAX promoter, indicating that the CBM is not required for all transcription-related functions.
journal_name
J Viroljournal_title
Journal of virologyauthors
Wong LY,Matchett GA,Wilson ACdoi
10.1128/JVI.78.18.10074-10085.2004subject
Has Abstractpub_date
2004-09-01 00:00:00pages
10074-85issue
18eissn
0022-538Xissn
1098-5514pii
78/18/10074journal_volume
78pub_type
杂志文章abstract::Certain chicken cells that do not spontaneously release virus particles have been shown to produce a subgroup E avian RNA tumor virus, Rous-associated virus 60 (RAV-60), after infection with viruses of other subgroups. The nucleic acids of RAV-60 were analyzed for sequence homologies with the viral nucleic acids conta...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.15.6.1367-1377.1975
更新日期:1975-06-01 00:00:00
abstract::Adult T-cell leukemia (ATL) is a fatal malignancy of CD4+ T cells infected with human T-cell leukemia virus type 1 (HTLV-1). ATL cells often exhibit random gross chromosomal rearrangements that are associated with the induction and improper repair of double-stranded DNA breaks (DSBs). The viral oncoprotein Tax has bee...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00672-18
更新日期:2018-07-17 00:00:00
abstract::Recombinant Epstein-Barr viruses (EBV) with a translation termination codon mutation inserted into the nuclear protein 3A (EBNA-3A) or 3C (EBNA-3C) open reading frame were generated by second-site homologous recombination. These mutant viruses were used to infect primary B lymphocytes to assess the requirement of EBNA...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.4.2014-2025.1993
更新日期:1993-04-01 00:00:00
abstract::Polyamine depletion produced by exogenous arginine in Escherichia coliK-12 cultures defective in agmatine ureohydrolase activity resulted in a marked inhibition of the rates of growth and nucleic acid synthesis. Addition of putrescine or spermidine to such depleted cultures restored the control rate of growth and nucl...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.9.3.423-430.1972
更新日期:1972-03-01 00:00:00
abstract::Persistent infection with hepatitis C virus (HCV) is a major cause of chronic liver diseases. The aim of this study was to identify host cell factor(s) participating in the HCV replication complex (RC) and to clarify the regulatory mechanisms of viral genome replication dependent on the host-derived factor(s) identifi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02179-08
更新日期:2009-05-01 00:00:00
abstract::The rat-derived Harvey murine sarcoma virus (Ha-MuSV) contains a transduced ras oncogene activated by two missense mutations and flanked by rat retroviruslike VL30 sequences. Ha-MuSV induces focal transformation of mouse NIH 3T3 cells in vitro and tumors (fibrosarcomas and splenic erythroleukemias) in newborn mice. We...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.3.1384-1392.1989
更新日期:1989-03-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) Tat is a mediator of viral transcription and is involved in the control of virus replication. However, associations between HIV-1 Tat diversity and functional effects during primary HIV-1 infection are still unclear. We estimated selection pressures in tat exon 1 using the m...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03297-12
更新日期:2013-05-01 00:00:00
abstract::The family of giant viruses is still expanding, and evidence of a translational machinery is emerging in the virosphere. The Klosneuvirinae group of giant viruses was first reconstructed from in silico studies, and then a unique member was isolated, Bodo saltans virus. Here we describe the isolation of a new member in...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01534-19
更新日期:2019-12-12 00:00:00
abstract::Antiviral effects were characterized for two oligodeoxyribonucleoside methylphosphonates synthesized in an antisense (3'-TCTTAACC-5') or a sense (5'-AGAATTGG-3') orientation, based on the RNA sequence of the first splice acceptor site of the tat-3 gene of human immunodeficiency virus (HIV) (5'...AGAAUUGG...3'). The de...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.10.3914-3917.1988
更新日期:1988-10-01 00:00:00
abstract::Enteroviral persistence has been implicated in the pathogenesis of several chronic human diseases, including dilated cardiomyopathy, insulin-dependent diabetes mellitus, and chronic inflammatory myopathy. However, these viruses are considered highly cytolytic, and it is unclear what mechanisms might permit their long-...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.9.4430-4440.2002
更新日期:2002-05-01 00:00:00
abstract::The entire varicella-zoster virus (VZV) genome appears to be present in latently infected human ganglia, but the extent of virus DNA transcription is unknown. Conventional methods to study virus gene transcripts by Northern (RNA) blotting are not feasible, since ganglia are small and VZV DNA is not abundant. To circum...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.12.7900-7908.1994
更新日期:1994-12-01 00:00:00
abstract::The arterivirus equine arteritis virus nonstructural protein 10 (nsp10) has previously been predicted to contain a Zn finger structure linked to a superfamily 1 (SF1) helicase domain. A recombinant form of nsp10, MBP-nsp10, was produced in Escherichia coli as a fusion protein with the maltose-binding protein. The prot...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.20.9586-9593.2000
更新日期:2000-10-01 00:00:00
abstract::Transcription and replication signals within the negative-sense genomic RNA of vesicular stomatitis virus (VSV) are located at the 3' terminus. To identify these signals, we have used a transcription- and replication-competent minigenome of VSV to generate a series of deletions spanning the first 47 nucleotides at the...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.1.444-452.1999
更新日期:1999-01-01 00:00:00
abstract::Long-term ovine fibroblast cultures contain replicative-competent lentiviruses in a latent form. This in vitro phenomenon, never described previously for lentiviruses, was clearly demonstrated by activating the expression of latent viruses with various inducing cell treatments, some of which were efficient in inducing...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.52.2.680-682.1984
更新日期:1984-11-01 00:00:00
abstract::Herpesviruses encode a set of core proteins essential for lytic replication of their genomes. Three of these proteins form a tripartite helix-primase complex that, in the case of Epstein-Barr virus (EBV), consists of the helicase BBLF4, the primase BSLF1, and the linker protein BBLF2/3. BBLF2/3 and its homologs in the...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.1.245-256.2005
更新日期:2005-01-01 00:00:00
abstract::Transgenic mice containing the complete human immunodeficiency virus (HIV) coding sequences fused to the mouse mammary tumor virus long terminal repeat were generated. They were found to produce high levels of authentic gag and env HIV proteins in several tissues known to support mouse mammary tumor virus-driven trans...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.6.3904-3908.1992
更新日期:1992-06-01 00:00:00
abstract::After incubation at 37 C for 2 or more days, Basal Medium Eagle (BME) supplemented with 25% fetal calf serum (FCS) was not able to support adequate growth of EB3 and other lines of Burkitt tumor cells. The medium did, however, increase, by a factor of about 10, the number of cells synthesizing herpes-type virus with w...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.2.3.182-191.1968
更新日期:1968-03-01 00:00:00
abstract::Murine norovirus (MNV), a prevalent pathogen of laboratory mice, shares many characteristics with human noroviruses. Previous results indicated that passage of MNV1 in the macrophage cell line RAW 264.7 results in attenuation in STAT1-deficient mice (C. E. Wobus, S. M. Karst, L. B. Thackray, K. O. Chang, S. V. Sosnovt...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00237-08
更新日期:2008-08-01 00:00:00
abstract:UNLABELLED:Hepatitis B virus (HBV)-specific cytotoxic T lymphocytes (CTLs) are critical in eliminating infection. We developed an animal model in which HBV-infected human hepatocytes are targeted by HBV-specific CTLs. After HBV inoculation in human hepatocyte-transplanted herpes simplex virus type-1 thymidine kinase-NO...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01126-15
更新日期:2015-10-01 00:00:00
abstract::Poorly cytopathic or noncytopathic viruses can escape immune surveillance and establish a chronic infection. Here we exploited the strategy of combining antiviral drug treatment with the induction of a neutralizing antibody response to avoid the appearance of neutralization-resistant virus variants. Despite the fact t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.13.5896-5901.2000
更新日期:2000-07-01 00:00:00
abstract::Although there is increasing evidence that individuals already infected with human immunodeficiency virus type 1 (HIV-1) can be infected with a heterologous strain of the virus, the extent of protection against superinfection conferred by the first infection and the biologic consequences of superinfection are not well...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02237-08
更新日期:2009-03-01 00:00:00
abstract::The plus strand of virion DNA of duck hepatitis B virus possessed, at its 5' terminus, a capped oligoribonucleotide 18 to 19 bases in length. This oligoribonucleotide had a unique 5' end, the heterogeneity in length reflecting two distinct junctions with plus-strand DNA that were 1 base apart. The sequence of the RNA ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.57.1.229-236.1986
更新日期:1986-01-01 00:00:00
abstract::The Roseobacter clade has been recognized as one of the abundant bacterial lineages in marine environments, which makes the characterization of bacteriophages infecting members of the clade important. Here we report the complete genome sequence of bacteriophage P12053L, which infects Celeribacter sp. strain IMCC12053,...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01153-12
更新日期:2012-08-01 00:00:00
abstract:UNLABELLED:Understanding the entry and trafficking mechanism(s) of recombinant adeno-associated virus (rAAV) into host cells can lead to evolution in capsid and vector design and delivery methods, resulting in enhanced transduction and therapeutic gene expression. Variability of findings regarding the early entry pathw...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01971-14
更新日期:2014-11-01 00:00:00
abstract::The roles of intracellular naked (INV), cell-associated enveloped (CEV), and extracellular enveloped (EEV) forms of vaccinia virus in cell-to-cell and longer-range spread were investigated by using two closely related strains of vaccinia virus, WR and IHD-J. We confirmed previous results that WR and IHD-J produced sim...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.7.4170-4179.1992
更新日期:1992-07-01 00:00:00
abstract::Serial serum specimens from 22 herpes simplex virus (HSV)-seronegative recipients of an HSV type 2 (HSV-2) glycoprotein subunit vaccine were analyzed by radioimmunoprecipitation and polyacrylamide gel electrophoresis for the development of antibodies to HSV-2 gB, gD, and g80, a complex of gC and gE. Volunteers receive...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.56.2.475-481.1985
更新日期:1985-11-01 00:00:00
abstract::The poliovirus-encoded, membrane-associated VPg-precursor polypeptide 3AB has been implicated in the initiation of viral RNA synthesis. We have expressed 3AB and 3A polypeptides in eukaryotic cells and examined their localization using indirect immunofluorescence and a direct in vitro membrane-binding assay. Results p...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.7.4468-4477.1994
更新日期:1994-07-01 00:00:00
abstract::Nectin-1 and nectin-2 are related molecules that can function with different specificities as entry receptors for mammalian alphaherpesviruses through interaction with viral glycoprotein D (gD). The normal function of members of the nectin family is to mediate cell-cell adhesion through homotypic and heterotypic necti...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.24.12940-12950.2002
更新日期:2002-12-01 00:00:00
abstract:UNLABELLED:In a previous screen of putative interferon-stimulated genes, SUN2 was shown to inhibit HIV-1 infection in an uncharacterized manner. SUN2 is an inner nuclear membrane protein belonging to the linker of nucleoskeleton and cytoskeleton complex. We have analyzed here the role of SUN2 in HIV infection. We repor...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03202-15
更新日期:2016-03-28 00:00:00
abstract::Polypeptide synthesis has been studied in cell-free systems prepared from vaccinia virus-infected and uninfected HeLa cells. Cytoplasmic extracts containing endogenous messenger ribonucleic acid were used. Amino acid incorporation into hot trichloroacetic acid-precipitable material was linear for 15 to 20 min at 37 C....
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.4.4.416-422.1969
更新日期:1969-10-01 00:00:00