Abstract:
:Herpesviruses utilize different origins of replication during lytic versus latent infection. Latent DNA replication depends on host cellular DNA replication machinery, whereas lytic cycle DNA replication requires virally encoded replication proteins. In lytic DNA replication, the lytic origin (ori-Lyt) is bound by a virus-specified origin binding protein (OBP) that recruits the core replication machinery. In this report, we demonstrated that DNA sequences in two noncoding regions of the Kaposi's sarcoma-associated herpesvirus (KSHV) genome, between open reading frames (ORFs) K4.2 and K5 and between K12 and ORF71, are able to serve as origins for lytic cycle-specific DNA replication. The two ori-Lyt domains share an almost identical 1,153-bp sequence and a 600-bp downstream GC-rich repeat sequence, and the 1.7-kb DNA sequences are sufficient to act as a cis signal for replication. We also showed that an AT-palindromic sequence in the ori-Lyt domain is essential for the DNA replication. In addition, a virally encoded bZip protein, namely K8, was found to bind to a DNA sequence within the ori-Lyt by using a DNA binding site selection assay. The binding of K8 to this region was confirmed in cells by using a chromatin immunoprecipitation method. Further analysis revealed that K8 binds to an extended region, and the entire region is 100% conserved between two KSHV ori-Lyt's. K8 protein displays significant similarity to the Zta protein of Epstein-Barr virus (EBV), which is a known OBP of EBV. This notion, together with the ability of K8 to bind to the KSHV ori-Lyt, suggests that K8 may function as an OBP in KSHV.
journal_name
J Viroljournal_title
Journal of virologyauthors
Lin CL,Li H,Wang Y,Zhu FX,Kudchodkar S,Yuan Ydoi
10.1128/jvi.77.10.5578-5588.2003subject
Has Abstractpub_date
2003-05-01 00:00:00pages
5578-88issue
10eissn
0022-538Xissn
1098-5514journal_volume
77pub_type
杂志文章abstract::Replication by many positive-strand RNA viruses includes genomic RNA amplification and subgenomic mRNA (sgRNA) transcription. For brome mosaic virus (BMV), both processes occur in virus-induced, membrane-associated compartments, require BMV replication factors 1a and 2a, and use negative-strand RNA3 as a template for ...
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
abstract::The human cyclin T1 (hCycT1) protein from the positive transcription elongation factor b (P-TEFb) binds the transactivator Tat and the transactivation response (TAR) RNA stem loop from human immunodeficiency virus type 1 (HIV). This complex activates the elongation of viral transcription. To create effective inhibitor...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.21.10873-10881.2002
更新日期:2002-11-01 00:00:00
abstract::Human cells infected with adenovirus type 2 (Ad2) or Ad5 require VAI RNA for efficient translation of viral mRNAs at late times after infection. The Ad5 mutant dl-sub720 synthesized neither virus-associated I (VAI) nor VAII RNAs, and infection of human cells with this mutant resulted in reduced virion polypeptide synt...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.60.2.363-368.1986
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.71.2.1265-1271.1997
更新日期:1997-02-01 00:00:00
abstract::The impact of antiretroviral therapy (ART) on the genetics of simian immunodeficiency virus (SIV) or human immunodeficiency virus (HIV) populations has been incompletely characterized. We analyzed SIV genetic variation before, during, and after ART in a macaque model. Six pigtail macaques were infected with an SIV/HIV...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01701-10
更新日期:2011-01-01 00:00:00
abstract::Severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) is known to take an endosomal pathway for cell entry; however, it is thought to enter directly from the cell surface when a receptor-bound virion spike (S) protein is affected by trypsin, which induces cleavage of the S protein and activates its fusion po...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01412-08
更新日期:2008-12-01 00:00:00
abstract::The 104-S monoclonal antibody immunoprecipitated from herpes simplex virus type 2 (HSV-2)-infected cell extracts the 75,000-molecular-weight glycoprotein gF and its 65,000-molecular-weight precursor (pgF). The precursor pgF was sensitive to endoglycosidase H digestion, indicating the presence of high mannose-type olig...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.47.1.185-192.1983
更新日期:1983-07-01 00:00:00
abstract::Broadly neutralizing antibodies have been isolated that bind the glycan shield of the HIV-1 envelope spike. One such antibody, PGT135, contacts the intrinsic mannose patch of gp120 at the Asn332, Asn392, and Asn386 glycosylation sites. Here, site-specific glycosylation analysis of recombinant gp120 revealed glycan mic...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00230-15
更新日期:2015-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.8.3605-3614.2002
更新日期:2002-04-01 00:00:00
abstract::The cocultivation of a lung cell line from the Southeast Asian mouse Mus cervicolor with cells from heterologous species has resulted in the isolation of two new distinct type C viruses. Both viruses are endogenous to M. cervicolor and are present in multiple copies in the cellular DNA of these mice. One of the viruse...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.21.3.849-862.1977
更新日期:1977-03-01 00:00:00
abstract::To examine the mode of transmission of BK polyomavirus (BKV), urine samples were collected from Japanese-Americans in Los Angeles and from other southern Californians. Subtype I was the main subtype found in samples from both groups. The subtype I subgroup Ib-2, which is predominant in Europe, was the primary subgroup...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01018-07
更新日期:2007-12-01 00:00:00
abstract::Parapoxviruses can be morphologically distinguished from other poxviruses in conventional negative staining electron microscopy (EM) by their ovoid appearance and the spiral tubule surrounding the virion's surface. However, this technique may introduce artifacts. We have examined Orf virus (ORFV; the prototype species...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.15.8085-8093.2004
更新日期:2004-08-01 00:00:00
abstract::The UL11 tegument protein of herpes simplex virus plays a critical role in the secondary envelopment; however, the mechanistic details remain elusive. Here, we report a new function of UL11 in the budding process in which it directs efficient acquisition of glycoprotein E (gE) via a direct interaction. In vitro bindin...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05207-11
更新日期:2011-09-01 00:00:00
abstract::Measles virus (MV) interacts with cellular receptors on the surface of peripheral blood lymphocytes (PBL) which mediate virus binding and uptake. Simultaneously, the direct contact of the viral glycoproteins with the cell surface induces a negative signal blocking progression to the S phase of the cell cycle, resultin...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.10.4499-4505.2001
更新日期:2001-05-01 00:00:00
abstract::To localize the epitopes recognized by monoclonal antibodies (MAbs) specific for the S1 subunit of the murine coronavirus JHMV spike protein, we have expressed S1 proteins with different deletions from the C terminus of S1. S1utt is composed of the entire 769-amino-acid (aa) S1 protein; S1NM, S1N, S1n(330), and S1n(22...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.9.5403-5410.1994
更新日期:1994-09-01 00:00:00
abstract::When herpes simplex virus was inoculated into the flank of a BALB/c mouse by scarification, the local replication of virus was followed by the establishment of an acute ganglionic infection. The subsequent centrifugal spread of this virus along nerves to the skin of the whole dermatome led to the development of a band...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.53.3.944-948.1985
更新日期:1985-03-01 00:00:00
abstract::Alphaherpesviruses are parasites of the peripheral nervous system in their natural hosts. After the initial infection of peripheral tissues such as mucosal cells, these neurotropic viruses will invade the peripheral nervous system that innervates the site of infection via long-distance axonal transport of the viral ge...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.17.10875-10889.2005
更新日期:2005-09-01 00:00:00
abstract::Infectious bursal disease virus (IBDV) is a nonenveloped virus with an icosahedral capsid composed of two proteins, VP2 and VP3, that derive from the processing of the polyprotein NH(2)-pVP2-VP4-VP3-COOH. The virion contains VP1, the viral polymerase, which is both free and covalently linked to the two double-stranded...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.7.3296-3303.2004
更新日期:2004-04-01 00:00:00
abstract::The herpes simplex virus type 1 capsid is composed of seven capsid proteins which are termed VP5, VP19c, VP21, VP22a, VP23, VP24, and VP26. Major capsid protein VP5 is encoded by the gene UL19. UL18, whose transcript is 3' coterminal with that of VP5, specifies capsid protein VP23. Vero cell lines have been isolated t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.3.1357-1364.1993
更新日期:1993-03-01 00:00:00
abstract::Understanding the microbiome of ticks in Australia is of considerable interest given the ongoing debate over whether Lyme disease and its causative agent, the bacterium Borrelia burgdorferisensu lato, are present in Australia. The diversity of bacteria infecting Australian ticks has been studied using both culture- an...
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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.05163-11
更新日期:2012-03-01 00:00:00
abstract::Interleukin-15 (IL-15), natural killer (NK) cells, and NK T (NKT) cells, components of the innate immune system, are known to contribute to defense against pathogens, including viruses. Here we report that IL-15(-/-) (NK(-) and NKT(-/+)) mice and RAG-2(-/-)/gamma(c)(-/-) (NK(-) and NKT(-)) mice that lack all lymphoid ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.18.10168-10171.2003
更新日期:2003-09-01 00:00:00
abstract::Accurate and sensitive quantitation of infectious human immunodeficiency virus (HIV) has been difficult to achieve. In this report, a quantitative focal immunoassay (FIA) for HIV was developed using human HeLa cells rendered susceptible to HIV infection by introduction of the CD4 gene via a retrovirus vector. Infected...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.10.3779-3788.1988
更新日期:1988-10-01 00:00:00
abstract::Deer mice are the principal reservoir hosts of Sin Nombre virus, the etiologic agent of most hantavirus cardiopulmonary syndrome cases in North America. Infection of deer mice results in persistence without conspicuous pathology, and most, if not all, infected mice remain infected for life, with periods of viral shedd...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.06875-11
更新日期:2012-09-01 00:00:00
abstract::Current L1 virus-like particle (VLP) vaccines provide type-restricted protection against a small subset of the human papillomavirus (HPV) genotypes associated with cervical cancer, necessitating continued cytologic screening of vaccinees. Cervical cancer is most problematic in countries that lack the resources for scr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01577-07
更新日期:2007-11-01 00:00:00
abstract::Ground squirrel hepatitis virus (GSHV) is a small DNA virus, structurally and antigenically related to the human hepatitis B virus, which occurs naturally among certain wild populations of ground squirrels (P. L. Marion et al., Proc. Natl. Acad. Sci. U.S.A. 77:2941-2945, 1980). Serum from naturally infected animals wa...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.44.1.366-373.1982
更新日期:1982-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.4.2701-2708.2003
更新日期:2003-02-01 00:00:00
abstract::Most current diagnostic tests for transmissible spongiform encephalopathies (TSE) rely on the presence of proteinase K (PK)-resistant PrP(Sc) (PrP-res) in postmortem tissues as an indication of TSE disease. However, a number of studies have highlighted a discrepancy between TSE infectivity and PrP-res levels in both n...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03469-12
更新日期:2013-05-01 00:00:00
abstract::Kaposi's sarcoma (KS)-associated herpesvirus (KSHV) open reading frame 50 (ORF50) encodes a viral transcriptional activator, which binds to the KSHV promoter and stimulates the transcription of viral early and late genes, thus activating the lytic cycle of KSHV. We report here that KSHV ORF50 binds to the cellular pro...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.4.1909-1917.2001
更新日期:2001-02-01 00:00:00
abstract::Recombinant poxvirus vectors are undergoing intensive evaluation as vaccine candidates for a variety of infectious pathogens. Avipoxviruses, such as canarypox virus, are replication deficient in mammalian cells by virtue of a poorly understood species-specific restriction. Highly attenuated vaccinia virus strains such...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02654-06
更新日期:2007-07-01 00:00:00