Abstract:
:The complete nucleotide sequence of the genome of classical swine fever virus (CSFV) strain Alfort/187 was determined from three cDNA libraries constructed by cloning of DNA fragments obtained from independent sets of reverse transcription and PCR. The cDNA fragments were then assembled and inserted downstream of a T7 promoter in a P15A-derived plasmid vector to obtain the full-length cDNA clone pA187-1. The first nucleotide of the CSFV genome was positioned at the transcription start site of the T7 promoter. Cleavage at an SrfI restriction site introduced at the exact 3' end of the cloned viral cDNA allowed the in vitro synthesis of full-length viral RNA by runoff transcription. This RNA proved to be infectious after transfection into porcine kidney cells. Infectivity was not increased after capping of the synthetic RNA. Virus recovered from transfected cells was titrated in porcine kidney cells by endpoint dilution using indirect immunofluorescence and a CSFV-specific monoclonal antibody. RNA transcripts generated from plasmid DNA isolated from bacteria which had been cultured and cloned 10 times remained infectious, indicating that the full-length clone is stable in bacterial cells. A silent point mutation introduced at position 11842 of the genome was retained in the recombinant virus recovered from transfected cells. An infectious chimeric construct was obtained by replacing a 696-bp fragment in pA187-1 with the corresponding cDNA fragment from the CSFV strain CAP. The stably cloned full-length CSFV cDNA allows site-specific mutagenesis of the viral genome and thus will be useful for detailed molecular characterization of the virus as well as for studies of viral pathogenesis.
journal_name
J Viroljournal_title
Journal of virologyauthors
Ruggli N,Tratschin JD,Mittelholzer C,Hofmann MAdoi
10.1128/JVI.70.6.3478-3487.1996subject
Has Abstractpub_date
1996-06-01 00:00:00pages
3478-87issue
6eissn
0022-538Xissn
1098-5514journal_volume
70pub_type
杂志文章abstract::Neurotropic herpesviruses depend on long-distance axon transport for the initial establishment of latency in peripheral ganglia (retrograde transport) and for viral spread in axons to exposed body surfaces following reactivation (anterograde transport). Images of neurons infected with herpes simplex virus type 1 (HSV-...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01296-10
更新日期:2010-12-01 00:00:00
abstract::A monoclonal antibody, MAb vpg15, inhibits feline immunodeficiency virus (FIV) infection in tissue culture. The antibody is directed to a determinant of the feline cell surface marker, CD9, implying that CD9 may serve as a viral receptor or coreceptor in this system. In cells expressing CD9, MAb vpg15 markedly delayed...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.8.5742-5749.1997
更新日期:1997-08-01 00:00:00
abstract::The DNA product of the endogenously instructed RNA-dependent DNA polymerase reaction of murine sarcoma virus continued to be synthesized for as long as 64 h in the presence of 0.008% Triton X-100. Higher detergent concentrations and actinomycin D inhibited DNA product synthesis. The DNA product from long-term polymera...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.12.5.1049-1064.1973
更新日期:1973-11-01 00:00:00
abstract::We have constructed new murine leukemia virus (MLV)-based vectors (TIN vectors) which, following integration, contain human immunodeficiency virus (HIV) type 1 U3 and R sequences in place of the MLV U3 and R regions. This provides, for the first time, single transcriptional unit retroviral vectors under the control of...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.8234-8240.1996
更新日期:1996-11-01 00:00:00
abstract::The DNAs of the five nondefective adenovirus 2 (Ad2)-simian virus 40 (SV40) hybrid viruses contain overlapping segments of the early region of wild-type SV40 DNA. The complementary DNA strands of these five viruses have been separated with synthetic polyribonucleotides in isopycnic cesium chloride gradients. The relat...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.3.677-689.1974
更新日期:1974-03-01 00:00:00
abstract::The coding region for the hepatitis B virus surface antigens contains three in-phase ATG codons which direct the synthesis of three related polypeptides. The 24-kilodalton major surface (or S) glycoprotein is initiated at the most distal ATG and is a transmembrane protein whose translocation across the bilayer is medi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.3.1414-1419.1990
更新日期:1990-03-01 00:00:00
abstract::Grasshoppers, Melanoplus sanguinipes (F.), infected with the grasshopper inclusion body virus (GIBV) showed a general torpor, took longer to develop, and had abnormally high rates of mortality. Infection was found only in the fat body, and developing viruses and inclusion bodies were observed in the nuclei and cytopla...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.3.6.605-610.1969
更新日期:1969-06-01 00:00:00
abstract::Mouse hepatitis virus (MHV) infection spreads from MHV-infected DBT cells, which express the MHV receptor CEACAM1 (MHVR), to BHK cells, which are devoid of the receptor, by intercellular membrane fusion (MHVR-independent fusion). This mode of infection is a property of wild-type (wt) JHMV cl-2 virus but is not seen in...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.3.950-958.2002
更新日期:2002-02-01 00:00:00
abstract::Avian leukosis virus subgroup J (ALV-J), an exogenous avian retrovirus, is thought to have evolved by recombination with the highly identical env gene of the endogenous avian retrovirus EAV-HP. Embryonic expression of EAV-HP env has been suggested to be associated with the induction of immunological tolerance, a featu...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.23.11935-11938.2001
更新日期:2001-12-01 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::The Sydney Blood Bank Cohort (SBBC) consists of eight blood transfusion recipients infected with nef-attenuated human immunodeficiency virus type 1 (HIV-1) acquired from a single donor. Here, we show that viral phenotypes and antibody responses differ considerably between individual cohort members, despite the single ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00650-07
更新日期:2007-09-01 00:00:00
abstract::ts1 and ts7, two temperature-sensitive mutants of Moloney murine leukemia virus strain TB induce hind-limb paralysis in 100% of CFW/D mice injected. These two paralytogenic mutants also share a defect in their inability to process the env precursor protein, Pr80env, at the restrictive temperature. To identify the muta...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.54.2.364-373.1985
更新日期:1985-05-01 00:00:00
abstract::The influenza A virus (IAV) envelope protein hemagglutinin binds α2,6- or α2,3-linked sialic acid as a host cell receptor. Bat IAV subtypes H17N10 and H18N11 form an exception to this rule and do not bind sialic acid but enter cells via major histocompatibility complex (MHC) class II. Here, we review current knowledge...
journal_title:Journal of virology
pub_type: 杂志文章,评审
doi:10.1128/JVI.01357-19
更新日期:2020-01-31 00:00:00
abstract::Chicken embryo fibroblasts and NIH 3T3 mouse cells were transformable by DNAs of chicken cells infected with avian myelocytomatosis virus strain MC29 or with avian erythroblastosis virus. Transfection of chicken cells appeared to require replication of MC29 or avian erythroblastosis virus in the presence of a nontrans...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.33.3.1199-1202.1980
更新日期:1980-03-01 00:00:00
abstract::Chronic HIV infection is characterized by chronic immune activation and dysfunctional T cells with elevated intracellular cyclic AMP (cAMP), which inhibits the T cell activation capability. cAMP may be induced by prostaglandin E(2) following lipopolysaccharide (LPS)-induced upregulation of cyclooxygenase type 2 (COX-2...
journal_title:Journal of virology
pub_type: 杂志文章,随机对照试验
doi:10.1128/JVI.00073-11
更新日期:2011-07-01 00:00:00
abstract::Herpes simplex virus type 2 (HSV-2) glycoprotein B (gB-2) gene segments were expressed as recombinant proteins in Escherichia coli. gB-2 recombinant proteins were reacted with human serum immunoglobulin G (IgG) antibodies in Western immunoblot assays. Initially, samples were tested for the presence of HSV-1-specific a...
journal_title:Journal of virology
pub_type: 临床试验,杂志文章
doi:10.1128/JVI.70.5.2950-2956.1996
更新日期:1996-05-01 00:00:00
abstract::Inoculation of 3-day-old (3D) or 3-week-old (3W) ducklings with duck hepatitis B virus results in chronic or transient infection, respectively. We previously showed that rapid production of neutralizing antibody following inoculation of 3W ducklings prevents virus from spreading in the liver and leads to a transient i...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.15.9896-9903.2005
更新日期:2005-08-01 00:00:00
abstract::Gene expression of human immunodeficiency virus (HIV) is modulated by both cellular transcription factors, which bind to cis-acting regulatory elements in the HIV-1 long terminal repeat (LTR) and the viral transactivator, tat. The enhancer element in the HIV-1 LTR which extends from -103 to -82 is critical for gene ex...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.2.1002-1009.1994
更新日期:1994-02-01 00:00:00
abstract::The small membrane glycoprotein (GS) of equine arteritis virus (EAV) is a minor virion component but is abundantly expressed in EAV-infected cells. In this study, we have analyzed its membrane topology, folding, oligomerization, and intracellular transport. We show that GS is a class I integral membrane protein with o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.6.3441-3448.1995
更新日期:1995-06-01 00:00:00
abstract::West Nile virus (WNV), currently the cause of a serious U.S. epidemic, is a mosquito-borne flavivirus and member of the Japanese encephalitis (JE) serocomplex. There is currently no approved human WNV vaccine, and treatment options remain limited, resulting in significant mortality and morbidity from human infection. ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00480-13
更新日期:2013-09-01 00:00:00
abstract:UNLABELLED:The immunoglobulin superfamily protein receptors for poliovirus, human rhinovirus, and coxsackievirus B (CVB) serve to bind the viruses to target cells and to facilitate the release of the virus genome by catalyzing the transition from the mature infectious virus to the A-particle uncoating intermediate. Rec...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01790-14
更新日期:2014-10-01 00:00:00
abstract::Physiological microenvironments such as blood, seminal plasma, mucosal secretions, or lymphatic fluids may influence the biology of the virus-host cell and immune interactions for human immunodeficiency virus type 1 (HIV-1). Relative to media, physiological levels of human plasma were found to enhance the infectivity ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.10.6054-6062.1995
更新日期:1995-10-01 00:00:00
abstract::Sequence analysis of the Lymantria dispar multicapsid nucleopolyhedrovirus (LdMNPV) genome identified an open reading frame (ORF) encoding a 548-amino-acid (62-kDa) protein that showed 35% amino acid sequence identity with vaccinia virus ATP-dependent DNA ligase. Ligase homologs have not been reported from other bacul...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.11.9142-9149.1998
更新日期:1998-11-01 00:00:00
abstract::Two virus-specific species of newly synthesized DNA were isolated from rat fibroblast cell cultures infected with the Kilham rat virus (RV). These two DNA species were purified; their behavior on hydroxyapatite chromatography and their sedimentation coefficients in sucrose gradients were determined. One of the two spe...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.20.1.86-95.1976
更新日期:1976-10-01 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::Encephalomyocarditis virus induced a rapid shutoff of host translation in mouse L cells shortly after infection and before viral proteins were made in detectable amounts. This kinetic pattern is similar to that seen in poliovirus-infected HeLa cells. However, the mechanisms of host shutoff are different in these two c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.43.1.250-261.1982
更新日期:1982-07-01 00:00:00
abstract::The Tax protein from human T-cell leukemia virus type I (HTLV-I) is a 40-kDa phosphoprotein capable of activating transcription from its own long terminal repeat (LTR), as well as increasing the transcription of cellular genes. Transcriptional activation of the HTLV-I LTR has been demonstrated via a cyclic-AMP-respons...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.7.4436-4441.1993
更新日期:1993-07-01 00:00:00
abstract::We have recovered a virion from defective cDNA of Sendai virus (SeV) that is capable of self-replication but incapable of transmissible-virion production. This virion delivers and expresses foreign genes in infected cells, and this is the first report of a gene expression vector derived from a defective viral genome o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.14.6564-6569.2000
更新日期:2000-07-01 00:00:00
abstract::The tax gene of the human T-cell leukemia virus types I and II (HTLV-I and HTLV-II) is essential for viral replication and acts by increasing the level of RNA transcription. The tax genes of HTLV-I and HTLV-II encode proteins of 40 and 37 kilodaltons, respectively. By in vitro mutagenesis of the tax gene, we have inve...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.3.1474-1479.1989
更新日期:1989-03-01 00:00:00
abstract::The adjuvant effects of cytokines in humoral and cell-mediated immunity to herpes simplex virus type 1 (HSV-1) have been examined in mice using HSV-1 recombinant viruses expressing murine interleukin-2 (IL-2), IL-4, or gamma interferon (IFN-gamma) gene. Groups of naive BALB/c mice were immunized intraperitoneally with...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.10.5774-5783.2003
更新日期:2003-05-01 00:00:00