Abstract:
:The protein (VPg) linked to the 5' termini of poliovirus RNAs resolved into two species when subjected to non-equilibrium electrofocusing. The differently charged forms of VPg were not due to protein phosphorylation nor to variability of the number of phosphate residues associated with the nucleotide moiety remaining after RNase digestion of the nucleoprotein. Single-stranded viral RNA isolated from mature virions contained predominantly the more basic form of VPg, whereas unpackaged single-stranded RNa remaining in cells at the end of the virus replication cycle contained predominantly the more acidic form of VPg. Replicative-form (RF) molecules also contained both species of VPg, with the more acidic form representing the major species. Both plus and minus RNA strands in RF had similar VPg compositions; however, there appeared to be a strongly selective loss of VPg from only the minus strand in RF, particularly at late times postinfection.
journal_name
J Viroljournal_title
Journal of virologyauthors
Richards OC,Hey TD,Ehrenfeld Edoi
10.1128/JVI.38.3.863-871.1981subject
Has Abstractpub_date
1981-06-01 00:00:00pages
863-71issue
3eissn
0022-538Xissn
1098-5514journal_volume
38pub_type
杂志文章abstract::CD8+ T cells were previously shown to be important in preventing lymphoproliferation and immunodeficiency following infection of murine AIDS (MAIDS)-resistant mice with the LP-BM5 mixture of murine leukemia viruses. To further evaluate the mechanisms contributing to MAIDS resistance, we studied mice lacking CD8+ T cel...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.3.1808-1813.1997
更新日期:1997-03-01 00:00:00
abstract::We examined cellular components which associate with p40tax, the viral transactivation molecule of human T-cell leukemia virus type I. Such molecules were searched by immunoprecipitation with polyclonal and monoclonal antibodies specific for p40tax. Two cellular proteins with molecular masses of 95 kDa (p95) and 60 kD...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.2.1040-1049.1992
更新日期:1992-02-01 00:00:00
abstract::Transcription of the terminal protein (TP) gene of Epstein-Barr virus (EBV) in Burkitt's lymphoma cells, in EBV-negative Burkitt's lymphoma cells converted with transformation-defective (P3HR1) and transformation-competent (B95-8, AG876) EBV strains, and in EBV-immortalized cell lines was studied. A TP1 cDNA probe spa...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.1.415-423.1991
更新日期:1991-01-01 00:00:00
abstract:UNLABELLED:Since the 1960s, simian hemorrhagic fever virus (SHFV; Nidovirales, Arteriviridae) has caused highly fatal outbreaks of viral hemorrhagic fever in captive Asian macaque colonies. However, the source(s) of these outbreaks and the natural reservoir(s) of this virus remain obscure. Here we report the identifica...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02203-14
更新日期:2014-11-01 00:00:00
abstract::We report the identification of a functional nuclear localization signal (NLS) in the human cytomegalovirus (HCMV) large tegument protein pUL48 that is required for nuclear localization in transfected cells and is essential for viral growth. The NLS was mapped to pUL48 amino acid residues 284 to 302. This sequence con...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03558-12
更新日期:2013-05-01 00:00:00
abstract::Adeno-associated virus type 5 (AAV5) has a linear, single-stranded DNA genome of ca. 5 kb and an overlapping transcription profile featuring multiple promoters and a single intron in the center of the genome. Unlike the situation for the prototype AAV2, AAV5 RNAs transcribed from upstream promoters at map units 7 (P7)...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.1.83-93.2004
更新日期:2004-01-01 00:00:00
abstract::Human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) primarily infect activated CD4(+) T cells but can infect macrophages. Surprisingly, ex vivo tetramer-sorted SIV-specific CD8(+) T cells that eliminated and suppressed viral replication in SIV-infected CD4(+) T cells failed to do so in SIV-infec...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.06324-11
更新日期:2012-04-01 00:00:00
abstract::Herpes simplex virus (HSV) strains HSV type 1 (HSV-1) KOS and HSV-2 186 are representative of delayed and early shutoff strains, respectively, with regard to their ability to inhibit protein synthesis in Friend erythroleukemia cells. When these cells were simultaneously infected with HSV-1 KOS and HSV-2 186, HSV-1 KOS...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.56.1.312-316.1985
更新日期:1985-10-01 00:00:00
abstract::Treatment of purified simian virus 40 large T antigen (LT) with protein phosphatase 2A stimulates LT-dependent DNA unwinding and replication (D. M. Virshup, M. G. Kauffman, and T. J. Kelly, EMBO J. 8: 3891-3898, 1989). The specificity of the catalytic subunit of protein phosphatase 2A toward LT was investigated by two...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.4.2098-2101.1991
更新日期:1991-04-01 00:00:00
abstract::The avian sarcoma and leukosis virus (ASLV) family of retroviruses contains five highly related envelope subgroups (A to E) thought to have evolved from a common viral ancestor in the chicken population. Three genetic loci in chickens determine the susceptibility or resistance of cells to infection by the subgroup A t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02206-07
更新日期:2008-03-01 00:00:00
abstract::Carcinogenic progression of a human papillomavirus (HPV)-infected cell is often associated with integration of the viral genome in a manner which results in the loss of expression of the viral regulatory protein E2. One function of E2 is the regulation of expression of the viral oncogenes, E6 and E7. Introduction of t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.12.7791-7799.1995
更新日期:1995-12-01 00:00:00
abstract::Herpes simplex virus type 1 (HSV-1) is a DNA virus that acquires an envelope by budding into the inner nuclear membrane of an infected cell. Recombinant HSV-1 lacking the U(L)34 gene cannot undergo this event. U(L)34 and U(L)31, another viral protein, colocalize in an infected cell and are necessary and sufficient to ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.13.7601-7610.2003
更新日期:2003-07-01 00:00:00
abstract:UNLABELLED:Ebola virus (EBOV) belongs to the group of nonsegmented negative-sense RNA viruses. The seven EBOV genes are separated by variable gene borders, including short (4- or 5-nucleotide) intergenic regions (IRs), a single long (144-nucleotide) IR, and gene overlaps, where the neighboring gene end and start signal...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01863-14
更新日期:2014-11-01 00:00:00
abstract:UNLABELLED:Marek's disease virus (MDV), an alphaherpesvirus, is the causative agent of a lethal disease in chickens characterized by generalized nerve inflammation and rapid lymphoma development. The extensive colinearity of the MDV genome with those of related herpesviruses has eased functional characterization of man...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02687-14
更新日期:2015-01-15 00:00:00
abstract::Synthesis of the vesicular stomatitis virus membrane matrix protein and the glycoprotein is inhibited to a greater extent than the synthesis of the nucleocapsid protein, the nonstructural protein, and the large protein when the rate of peptide chain initiation is reduced by exposure of vesicular stomatitis virus-infec...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.1.283-286.1976
更新日期:1975-01-01 00:00:00
abstract::Murine gammaherpesvirus 68 (MHV68) establishes a lifelong infection in mice and is used as a model pathogen to study the role of viral and host factors in chronic infection. The maintenance of chronic MHV68 infection, at least in some latency reservoirs, appears to be dependent on the capacity of the virus to reactiva...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01717-08
更新日期:2009-02-01 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::The temporal regulation of DNA replication is thought to be important for chromosome organization and genome stability. We show here that Epstein-Barr virus (EBV) genomes replicate in mid- to late S phase and that agents that accelerate replication timing of EBV reduce viral genome stability. Hydroxyurea (HU) treatmen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02115-08
更新日期:2009-03-01 00:00:00
abstract::The protection of individuals from human immunodeficiency virus type 1 (HIV-1) infection with an envelope subunit derived from a single isolate will require the presentation of conserved epitopes in gp120. The objective of the studies presented here was to test whether a native recombinant gp120 (rgp120) immunogen wou...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.1.172-182.1992
更新日期:1992-01-01 00:00:00
abstract::Murine models have suggested that CD8+ T-cell responses peak early in acute viral infections and are not sustained, but no evidence for humans has been available. To address this, we longitudinally analyzed the CD8+ T-cell response to human parvovirus B19 in acutely infected individuals. We observed striking CD8+ T-ce...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.18.12117-12121.2005
更新日期:2005-09-01 00:00:00
abstract::A adenovirus type 5 host range mutant (hr440) has been isolated which is defective in a splicing event required to generate the middle-sized mRNA from early region 1A. This defect has been ascribed to two adjacent nucleotide changes which lie five and six nucleotides from the 5' splice site for this mRNA (Solnick, Nat...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.42.1.106-113.1982
更新日期:1982-04-01 00:00:00
abstract::We have demonstrated that Epstein-Barr virus (EBV) confers enhanced growth capability in soft agarose, tumorigenesis in the SCID mouse, and resistance to apoptosis in the Burkitt's lymphoma cell line Akata. Subsequently, we have shown that EBV-encoded small RNAs (EBERs) are responsible for these phenotypes. We constan...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.3.1561-1564.2001
更新日期:2001-02-01 00:00:00
abstract::A procedure incorporating the use of heparin was developed to purify Herpesvirus ovis. The viral DNA has a buoyant density of 1.706 +/- 0.001 g/cm3, and the sedimentation constant was estimated to be 47.5 +/- 1.5S; from the latter, the molecular weight was calculated as 67.3 +/- 5.4 X 10(6). Estimates of the guanine-p...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.32.3.705-709.1979
更新日期:1979-12-01 00:00:00
abstract:UNLABELLED:Hepatitis B virus (HBV) infects hundreds of millions of people worldwide and causes acute and chronic hepatitis, cirrhosis, and hepatocellular carcinoma. HBV is an enveloped virus with a relaxed circular (RC) DNA genome. In the nuclei of infected human hepatocytes, conversion of RC DNA from the incoming viri...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01263-15
更新日期:2015-10-21 00:00:00
abstract::Galectin-9 is a pleiotropic immune modulator affecting numerous cell types of innate and adaptive immunity. Patients with chronic infection with either hepatitis C virus (HCV) or HIV have elevated circulating levels. Limited data exist on the regulation of natural killer (NK) cell function through interaction with gal...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01085-12
更新日期:2013-05-01 00:00:00
abstract::The interaction of the human immunodeficiency virus (HIV) Gag protein with the plasma membrane of a cell is a critical event in the assembly of HIV particles. The matrix protein region (MA) of HIV type 1 (HIV-1) Pr55Gag has previously been demonstrated to confer membrane-binding properties on the precursor polyprotein...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.9.6582-6592.1997
更新日期:1997-09-01 00:00:00
abstract:UNLABELLED:The HIV-1 virion infectivity factor (Vif) targets the cellular cytidine deaminases APOBEC3G (A3G) and APOBEC3F (A3F) for degradation via the host ubiquitin-proteasome pathway. Vif recruits a cellular E3 ubiquitin ligase to polyubiquitinate A3G/F. The activity of Vif critically depends on the cellular core bi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03824-13
更新日期:2014-03-01 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::A soluble system was developed that could support DNA replication in simian virus 40 (SV40) chromosomes. DNA synthesis in this system required the presence of purified SV40 large tumor antigen, SV40 chromosomes prepared from virus-infected monkey cells, a crude extract from HeLa cells, and several low-molecular-weight...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.10.4820-4829.1990
更新日期:1990-10-01 00:00:00
abstract::A technique of continuous filtration of T4-infected Escherichia coli has been devised to study the phenomenon of lysis inhibition. Studies using this technique revealed that the length of the lysis delay caused by superinfection can attain only certain discrete values, which for low average multiplicity of superinfect...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.1.5.948-955.1967
更新日期:1967-10-01 00:00:00