Abstract:
:A recombinant Epstein-Barr virus (EBV) was constructed, with a positive-selection marker inserted at the site of a deletion of a DNA segment which encodes the first five transmembrane domains of LMP2A and LMP2B. Despite the mutation, the mutant recombinant EBV was able to initiate and maintain primary B-lymphocyte growth transformation in vitro. Cells transformed with the mutant recombinant were not different from wild-type virus transformants in initial or long-term outgrowth, sensitivity to limiting cell dilution, or serum requirement. Expression of EBNA1, EBNA2, EBNA3A, EBNA3C, and LMP1 and permissivity for lytic EBV infection were also unaffected by the LMP2 deletion mutation. These results complete the molecular genetic studies proving LMP2 is dispensable for primary B-lymphocyte growth transformation, latent infection, and lytic virus replication in vitro.
journal_name
J Viroljournal_title
Journal of virologyauthors
Longnecker R,Miller CL,Tomkinson B,Miao XQ,Kieff Edoi
10.1128/JVI.67.8.5068-5074.1993subject
Has Abstractpub_date
1993-08-01 00:00:00pages
5068-74issue
8eissn
0022-538Xissn
1098-5514journal_volume
67pub_type
杂志文章abstract::Human herpesvirus 8 (HHV-8) is likely to be involved in the pathogenesis of Kaposi's sarcoma (KS) and body cavity-based lymphomas (BCBLs). The HHV-8 genome is primarily in a latent state in BCBL-derived cell lines like BCBL-1, but lytic replication can be induced by phorbol esters (R. Renne, W. Zhang, B. Herndier, M. ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.8.6725-6731.1998
更新日期:1998-08-01 00:00:00
abstract::We have developed a simple screening method to identify genes that mimic bcl-2 or adenovirus E1B 19K in enhancing cell survival after transfection and have used this method to identify such a gene in the avian adenovirus CELO. The gene encodes a novel 30-kDa nuclear protein, which we have named GAM-1, that functions c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.4.3168-3177.1997
更新日期:1997-04-01 00:00:00
abstract:UNLABELLED:Mumps virus (MuV), a paramyxovirus containing a negative-sense nonsegmented RNA genome, is a human pathogen that causes an acute infection with symptoms ranging from parotitis to mild meningitis and severe encephalitis. Vaccination against mumps virus has been effective in reducing mumps cases. However, rece...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03673-13
更新日期:2014-04-01 00:00:00
abstract::Cells nonproductively transformed by a variant of the Snyder-Theilen strain of feline sarcoma virus (FeSV) expressed an 85,000-dalton polyprotein (P85) with associated tyrosine-specific protein kinase activity. We identified within this polyprotein a single tyrosine acceptor site for its enzyme activity. This acceptor...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.38.3.886-894.1981
更新日期:1981-06-01 00:00:00
abstract::Expression of the papillomavirus E4 protein correlates with the onset of viral DNA amplification. Using a mutant cottontail rabbit papillomavirus (CRPV) genome incapable of expressing the viral E4 protein, we have shown that E4 is required for the productive stage of the CRPV life cycle in New Zealand White and cotton...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.4.2142-2151.2004
更新日期:2004-02-01 00:00:00
abstract::West Nile virus (WNV) replicates in the skin; however, cell targets in the skin have not been identified. In the current studies, WNV infected the epidermis and adnexal glands of mouse skin, and the epidermal cells were identified as keratinocytes by double labeling for WNV antigen and keratin 10. Inoculation of mice ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02692-10
更新日期:2011-05-01 00:00:00
abstract::Previous studies using wild-type Encephalomyocarditis virus (EMCV) and Mengo virus, which have long poly(C) tracts (61 to 146 C's) at the 5' nontranslated region of the genome, and variants of these viruses genetically engineered to truncate or substitute the poly(C) tracts have produced conflicting data on the role o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.17.9136-9146.2003
更新日期:2003-09-01 00:00:00
abstract::Wild-type simian virus 40 A protein (large T antigen) bound to three tandem regions of simian virus 40 DNA. The binding regions were defined by the ability of A protein to protect simian virus 40 DNA from digestion with limited (footprint assay) or excess (fragment assay) amounts of DNase I. At low concentrations, pro...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.44.2.458-466.1982
更新日期:1982-11-01 00:00:00
abstract::Hepatitis B virus (HBV) DNA clones were propagated from 57 carriers with antibody to hepatitis B e antigen (HBeAg) and sequenced within nucleotides (nt) 1685 to 1926 including the core promoter (nt 1742 to 1849) and the pre-C region (nt 1814 to 1900). Mutations in the core promoter or those in the pre-C region, or bot...
journal_title:Journal of virology
pub_type: 临床试验,杂志文章
doi:10.1128/JVI.68.12.8102-8110.1994
更新日期:1994-12-01 00:00:00
abstract::NS4B is one of the nonstructural proteins of classical swine fever virus (CSFV), the etiological agent of a severe, highly lethal disease of swine. Protein domain analysis of the predicted amino acid sequence of the NS4B protein of highly pathogenic CSFV strain Brescia (BICv) identified a putative Toll/interleukin-1 r...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02050-09
更新日期:2010-02-01 00:00:00
abstract::An in situ molecular hybridization system which will detect retrovirus RNA in the cytoplasm of individual virus-infected cells has been developed. The technique was applied to cells infected with simian sarcoma-leukemia virus, where the virus-specific RNA was detected by hybridization to simian sarcoma-leukemia virus ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.30.2.637-641.1979
更新日期:1979-05-01 00:00:00
abstract::The adenovirus major late promoter (MLP) is active during both the early and late phases of infection. During the early phase the activity of the MLP is similar to those of the other early viral promoters, but during the late phase the rate of transcription from the MLP becomes much greater by comparison. We report he...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.1.51-60.1990
更新日期:1990-01-01 00:00:00
abstract::Vertebrates mount a strong innate immune response against viruses, largely by activating the interferon system. Double-stranded RNA (dsRNA), a common intermediate formed during the life cycle of many viruses, is a potent trigger of this response. In contrast, no general inducible antiviral defense mechanism has been r...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.19.10442-10448.2004
更新日期:2004-10-01 00:00:00
abstract::Primary HIV-1 infection (PHI) is marked by a flu-like syndrome and high levels of viremia that decrease to a viral set point with the first emergence of virus-specific CD8+ T-cell responses. Here, we investigated in a large cohort of 527 subjects the immunodominance pattern of the first virus-specific cytotoxic T-lymp...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00182-09
更新日期:2009-08-01 00:00:00
abstract::During the course of experiments designed to isolate deletion mutants of herpes simplex virus type 1 in the gene encoding the major DNA-binding protein, ICP8, a mutant, d61, that grew efficiently in ICP8-expressing Vero cells but not in normal Vero cells was isolated (P. K. Orberg and P. A. Schaffer, J. Virol. 61:1136...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.61.11.3528-3535.1987
更新日期:1987-11-01 00:00:00
abstract::For influenza virus, we developed an efficient, noncytotoxic, plasmid-based virus-like particle (VLP) system to reflect authentic virus particles. This system was characterized biochemically by analysis of VLP protein composition, morphologically by electron microscopy, and functionally with a VLP infectivity assay. T...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00361-07
更新日期:2007-07-01 00:00:00
abstract::Homozygous human immunodeficiency virus type 1 (HIV-1)-transgenic mice (Tg26) appear normal at birth but die within 3 to 4 weeks. The skin of these animals shows diffuse scaling and high-level expression of both HIV-1 mRNA and gp120. Previous experiments showed that treatment with human chorionic gonadatropin (hCG) pr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.22.11710-11714.2002
更新日期:2002-11-01 00:00:00
abstract::The herpes simplex virus 2 (HSV-2) viral microRNA (miRNA) designated miR-H6 is located upstream of the latency-associated transcript (LAT) promoter region on the strand opposite the LAT. Deletion of the LAT promoter and part of LAT exon 1 abolished HSV-2 miR-H6 expression in acutely and latently infected guinea pig do...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01997-10
更新日期:2011-05-01 00:00:00
abstract::Human papillomaviruses (HPVs) are small DNA tumor viruses that are the causative agent of warts and are associated with many anogenital cancers. The viral gene encoding the E6 protein has been found to be involved in HPV oncogenesis. E6 is known to inactivate the cellular tumor suppressor, p53. In addition, E6 has bee...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.24.13039-13048.2002
更新日期:2002-12-01 00:00:00
abstract:UNLABELLED:The vaccinia virus (VACV) E3 protein has been shown to be important for blocking activation of the cellular innate immune system and allowing viral replication to occur unhindered. Mutation or deletion of E3L severely affects viral host range and pathogenesis. While the monkeypox virus (MPXV) genome encodes ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00304-15
更新日期:2015-10-01 00:00:00
abstract::Eleven highly conserved proteins comprise the poxvirus entry-fusion complex (EFC). We focused on vaccinia virus (VACV) O3, a 35-amino acid, largely hydrophobic component of unknown specific function. Experimental evolution was carried out by blindly passaging a virus that was severely impaired in entry due to deletion...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02228-20
更新日期:2021-01-27 00:00:00
abstract::Several point mutations in the simian virus 40 (SV40) small-t antigen have been analyzed for their effects on protein stability, transformation, transactivation, and binding of two cellular proteins. All mutations which affected cysteine residues in two cysteine clusters produced highly unstable small-t antigens. Four...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.6.2895-2900.1990
更新日期:1990-06-01 00:00:00
abstract::Feline herpesvirus produces characteristic morphological alterations in feline kidney cells. Nucleocapsid particles are formed in infected nuclei and are enveloped as they pass through the modified inner nuclear membrane. Aggregates of dense granular material and filamentous structures also regularly appear in infecte...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.5.5.617-623.1970
更新日期:1970-05-01 00:00:00
abstract::The ORF3 protein of hepatitis E virus (HEV) is a multifunctional protein important for virus replication. The ORF3 proteins from human, swine, and avian strains of HEV contain a conserved PXXP amino acid motif, resembling either Src homology 3 (SH3) cell signaling interaction motifs or "late domains" involved in host ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.06711-11
更新日期:2012-05-01 00:00:00
abstract::Sequence analysis of the short unique (Us) segment of the bovine herpesvirus 1 (BHV-1) genome predicted that the Us open reading frame (ORF) 4 encodes a protein with homology to glycoprotein G (gG) of other alpha-herpesviruses (P. Leung-Tack, J.-C. Audonnet, and M. Riviere, Virology 199:409-421, 1994). RNA analysis sh...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.5.3032-3038.1996
更新日期:1996-05-01 00:00:00
abstract::Herpesviruses use a cascade of interactions with different cell surface molecules to gain entry into cells. In many cases, this involves binding to abundant glycosaminoglycans or integrins followed by interactions with more limited cell surface proteins, leading to fusion with cellular membranes. Human cytomegalovirus...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01623-08
更新日期:2008-12-01 00:00:00
abstract::A panel of 28 insertion mutants of the human immunodeficiency virus type 1 (HIV-1) Gag precursor (Pr55Gag) was constructed by linker-insertion mutagenesis and expressed in recombinant baculovirus-infected insect cells. One set of 14 mutants carried the normal N-myristylation signal; the other set constituted their non...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.1.111-122.1994
更新日期:1994-01-01 00:00:00
abstract::Avian reovirus, an important avian pathogen, expresses eight structural and four nonstructural proteins. The structural sigmaA protein is a major component of the inner capsid, clamping together lambdaA building blocks. sigmaA has also been implicated in the resistance of avian reovirus to the antiviral action of inte...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00733-08
更新日期:2008-11-01 00:00:00
abstract::MicroRNAs (miRNAs) are potent RNA regulators of gene expression. Some viruses encode miRNAs, most of unknown function. The majority of viral miRNAs are not conserved, and whether any have conserved functions remains unclear. Here, we report that two human polyomaviruses associated with serious disease in immunocomprom...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01144-08
更新日期:2008-10-01 00:00:00
abstract::The highly syncytium-inducing M strain and the weakly syncytium-inducing SC strain of bovine parainfluenza 3 virus differ by a single amino acid substitution in each of the hemagglutinin-neuraminidase (HN) and membrane (M) proteins, while their fusion (F) proteins are identical (T. Shioda, S. Wakao, S. Suzu, and H. Sh...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.9.3661-3668.1989
更新日期:1989-09-01 00:00:00