Abstract:
:Mitogenic activities of simian virus 40 large T and small t antigens were studied in serum-deprived human diploid fibroblasts. Wild-type large T and small t cooperated in stimulating DNA synthesis and in inducing hyperphosphorylation of the Rb gene product (pRb). In contrast, a T antigen mutant defective for pRb binding (Rb- T) possessed no detectable mitogenic activity alone and failed to complement small t in stimulating DNA synthesis. Surprisingly, Rb- T and small t cooperated as strongly as wild-type T and small t with respect to pRb hyperphosphorylation. As a consequence, in two closely related conditions (i.e., stimulation by small t plus wild-type T versus small t plus Rb- T), the fraction of pRb in hyperphosphorylated forms dissociated from the fraction of cells in the S phase. These results indicate that pRb hyperphosphorylation is not always tightly coupled with a commitment to initiate DNA replication.
journal_name
J Viroljournal_title
Journal of virologyauthors
Ogryzko VV,Hirai TH,Shih CE,Howard BHdoi
10.1128/JVI.68.6.3724-3732.1994subject
Has Abstractpub_date
1994-06-01 00:00:00pages
3724-32issue
6eissn
0022-538Xissn
1098-5514journal_volume
68pub_type
杂志文章abstract::Protective immunity to rotavirus (RV) is primarily mediated by antibodies produced by RV-specific memory B cells (RV-mBc). Of note, most of these cells express IgM, but the function of this subset is poorly understood. Here, using limiting dilution assays of highly sort-purified human IgM(+) mBc, we found that 62% and...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01466-12
更新日期:2012-10-01 00:00:00
abstract::The pattern of induced protein species of the prototype strain of the parvovirus minute virus of mice was determined in permissive A9 mouse fibroblast cells by high-resolution two-dimensional gel electrophoresis. Identities of the viral proteins in the gels were assigned by probing two-dimensional blots with antisera ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.9.5126-5138.1993
更新日期:1993-09-01 00:00:00
abstract::Chronic hepatitis C virus (HCV) infection is a major cause of liver disease. The HCV polyprotein contains a hypervariable region (HVR1) located at the N terminus of the second envelope glycoprotein E2. The strong variability of this 27-amino-acid region is due to its apparent tolerance of amino acid substitutions toge...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.12.5703-5710.2001
更新日期:2001-06-01 00:00:00
abstract::We have synthesized 32P-labeled hybridization probes from a hyperdivergent region (nucleotides 51 to 392) of the rotavirus gene encoding the VP7 glycoprotein by using the polymerase chain reaction method. Both RNA (after an initial reverse transcription step) and cloned cDNA from human rotavirus serotypes 1 through 4 ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.8.4021-4024.1990
更新日期:1990-08-01 00:00:00
abstract::Latent membrane protein 2A (LMP2A) is one of only two viral proteins expressed during latent Epstein-Barr virus (EBV) infections in human peripheral B cells. LMP2A blocks B-cell receptor (BCR) signal transduction in vitro by modulation of the Syk and Lyn protein tyrosine kinases. Five genetically unique LMP2A transgen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.3.1101-1113.2000
更新日期:2000-02-01 00:00:00
abstract::Alternative splicing of adeno-associated virus type 2 (AAV2) P19-generated pre-mRNAs generates the small Rep proteins Rep52 and Rep40, which differ in their carboxyl termini. Both proteins are required for optimal packaging of AAV2 genomes. AAV5 Rep-encoding P19-generated transcripts are primarily polyadenylated withi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01961-09
更新日期:2010-01-01 00:00:00
abstract::Two hundred forty pyridazinamine derivatives were tested for the ability to stabilize the antigenicity and infectivity of oral poliovirus vaccine subjected to 45 degrees C for 2 h. Seven compounds stabilized the antigenicity of all three vaccine strains and neutralized the viral particles in a way that is reversible b...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.5.3397-3400.1994
更新日期:1994-05-01 00:00:00
abstract::In varicella-zoster virus (VZV)-infected primary human brain vascular adventitial fibroblasts (BRAFs), levels of beta interferon (IFN-β,) STAT1, and STAT2 transcripts as well as STAT1 and STAT2 protein were decreased. IFN-α transcript levels were increased but not secreted IFN-α protein levels. Compared to IFN-α-treat...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01945-14
更新日期:2014-10-01 00:00:00
abstract::We tested chemokine receptor subset usage by diverse, well-characterized primary viruses isolated from peripheral blood by monitoring viral replication with CCR1, CCR2b, CCR3, CCR5, and CXCR4 U87MG.CD4 transformed cell lines and STRL33/BONZO/TYMSTR and GPR15/BOB HOS.CD4 transformed cell lines. Primary viruses were iso...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.11.9307-9312.1998
更新日期:1998-11-01 00:00:00
abstract::Polyoma virus complementary RNA, synthesized in vitro by using highly purified Escherichia coli RNA polymerase and nondefective form I polyoma DNA, was translated in a wheat germ cell-free system. Polypeptides were synthesized that comigrated on sodium dodecyl sulfate-polyacrylamide gels with the polyoma capsid protei...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.25.2.570-578.1978
更新日期:1978-02-01 00:00:00
abstract::The human immunodeficiency virus type 1 (HIV-1) accessory protein Vpu enhances virus particle release by counteracting a host factor that retains virions at the surfaces of infected cells. It was recently demonstrated that cellular protein BST-2/CD317/Tetherin restricts HIV-1 release in a Vpu-dependent manner. Calcium...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01786-09
更新日期:2009-12-01 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::For the identification of RNA-binding proteins that specifically interact with potato spindle tuber viroid (PSTVd), we subjected a tomato cDNA expression library prepared from viroid-infected leaves to an RNA ligand screening procedure. We repeatedly identified cDNA clones that expressed a protein of 602 amino acids. ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.17.9685-9694.2003
更新日期:2003-09-01 00:00:00
abstract:UNLABELLED:Virus entry into cells is a multistep process that often requires the subversion of subcellular machineries. A more complete understanding of these steps is necessary to develop new antiviral strategies. While studying the potential role of the actin network and one of its master regulators, the small GTPase...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00103-16
更新日期:2016-04-14 00:00:00
abstract::Chronic hepatitis C virus (HCV) infection is frequently associated with extrahepatic manifestations, including nonmalignant and malignant B-cell lymphoproliferative disorders. It has been reported that specific changes or recurring motifs in the amino acid sequence of the HCV hypervariable region 1 (HVR1) may be assoc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02104-06
更新日期:2007-05-01 00:00:00
abstract::Due to increasing concerns about human infection by various H7 influenza viruses, including recent H7N9 viruses, we evaluated the genetic relationships and cross-protective efficacies of three different Eurasian H7 avian influenza viruses. Phylogenic and molecular analyses revealed that recent Eurasian H7 viruses can ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02259-16
更新日期:2017-05-12 00:00:00
abstract::Polymorphic basic residues near the C terminus of the prion protein (PrP) in humans and sheep appear to protect against prion disease. In heterozygotes, inhibition of prion formation appears to be dominant negative and has been simulated in cultured cells persistently infected with scrapie prions. The results of nucle...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.9.4351-4360.2000
更新日期:2000-05-01 00:00:00
abstract:UNLABELLED:The measles virus (MeV) membrane fusion apparatus consists of a fusion protein trimer and an attachment protein tetramer. To trigger membrane fusion, the heads of the MeV attachment protein, hemagglutinin (H), bind cellular receptors while the 96-residue-long H stalk transmits the triggering signal. Structur...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02846-13
更新日期:2014-06-01 00:00:00
abstract::A system has been developed for generating chimeric yellow fever/Japanese encephalitis (YF/JE) viruses from cDNA templates encoding the structural proteins prM and E of JE virus within the backbone of a molecular clone of the YF17D strain. Chimeric viruses incorporating the proteins of two JE strains, SA14-14-2 (human...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.4.3095-3101.1999
更新日期:1999-04-01 00:00:00
abstract::A more complete assessment of ovine prion strain diversity will be achieved by complementing biological strain typing in conventional and ovine PrP transgenic mice with a biochemical analysis of the resultant PrPSc. This will provide a correlation between ovine prion strain phenotype and the molecular nature of differ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01454-08
更新日期:2008-11-01 00:00:00
abstract::Influenza virus nucleoprotein (NP) is associated with the genome RNA, forming ribonucleoprotein cores. To identify the amino acid sequence involved in RNA binding, we performed Northwestern blot analysis with a set of N- and C-terminal deletion mutants of NP produced in Escherichia coli. The RNA binding region has bee...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.12.8433-8436.1994
更新日期:1994-12-01 00:00:00
abstract::We have previously demonstrated that two mouse cell lines that are poorly infectible by reovirus become highly susceptible upon transfection with the gene encoding the epidermal growth factor receptor (EGFR) (J. E. Strong, D. Tang, and P. W. K. Lee, Virology 197:405-411, 1993). This enhancement of infection efficiency...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.1.612-616.1996
更新日期:1996-01-01 00:00:00
abstract::Activated Notch1 (AcN1) alleles cooperate with oncogenes from DNA tumor viruses in transformation of epithelial cells. AcN1 signaling has pleiotropic effects, and suggested oncogenic roles include driving proliferation through cyclin D1 or the generation of resistance to apoptosis on matrix withdrawal through a phosph...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.12.7106-7112.2003
更新日期:2003-06-01 00:00:00
abstract::Interleukin-1 (IL-1) plays an important role in the inflammatory process. Some studies have demonstrated that IL-1 production was impaired in patients with chronic infections of hepatitis C virus (HCV), implying that IL-1 may play a role in viral clearance. Using an HCV subgenomic replicon cell line, we demonstrate th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.9.5493-5498.2003
更新日期:2003-05-01 00:00:00
abstract::Unintegrated linear and closed circular DNAs of B- and N-tropic endogenous BALB/c murine leukemia virus (MuLV) were extracted from newly infected mouse cells and cleaved with EcoRI, XhoI, PvuI, HindIII, SalI, XbaI, KpnI, SmaI, and PstI restriction endonucleases. The DNA fragments were separated by electrophoresis and ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.35.3.812-823.1980
更新日期:1980-09-01 00:00:00
abstract::Human papillomavirus type 1 (HPV1) E4 protein is associated with cytoplasmic and nuclear inclusions in productively infected keratinocytes. Here we have used transient expression of HPV1 E4 (also known as E1E4) protein in keratinocytes to reproduce formation of E4 inclusions. Immunofluorescence analysis showed that pr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.1.673-684.2003
更新日期:2003-01-01 00:00:00
abstract::Human MxA protein accumulates in the cytoplasm of interferon-treated cells and inhibits the multiplication of several RNA viruses, including Thogoto virus (THOV), a tick-borne orthomyxovirus that transcribes and replicates its genome in the cell nucleus. The antiviral mechanism of MxA was investigated by using two alt...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.1.560-563.2000
更新日期:2000-01-01 00:00:00
abstract::The complete nucleotide sequence of the NS mRNA of vesicular stomatitis virus (New Jersey serotype) was established from two cDNA clones spanning the entire coding region of the mRNA. The gene is 856 nucleotides long and can code for a polypeptide of 274 amino acids. Comparison with the nucleotide sequence of the NS g...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.55.1.60-66.1985
更新日期:1985-07-01 00:00:00
abstract::The hepadnavirus reverse transcriptase is a multifunction enzyme. In addition to its role in DNA synthesis, the polymerase is required for RNA packaging and also functions as the primer for minus-strand DNA synthesis. Previously, we demonstrated that the protein-priming activity of the polymerase requires a viral RNA ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.12.8437-8442.1994
更新日期:1994-12-01 00:00:00
abstract::NF-D is a ubiquitous nuclear factor that has been shown to bind specifically to a DNA element in the polyomavirus regulatory region. In this report, we demonstrate that NF-D is either identical or very similar to a transcription factor that has been variously named YY1, delta, NF-E1, UCRBP, or CF1. Moreover, we show t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.3.1433-1438.1996
更新日期:1996-03-01 00:00:00