Abstract:
:The structure of Bacillus subtilis bacteriophage phi25 and phi25 deoxyribonucleic acid (DNA) were studied by electron microscopy. The head of phi25 is a regular polyhedron measuring 75 nm in diameter. The uncontracted tail of phi25 is 130 nm in length and includes a large, complex tail plate. Phage phi25 DNA is double-stranded and has a molecular weight of approximately 100 million as determined by electron microscopic length measurements and analytical band sedimentation in CsCl. The complementary strands of phi25 DNA contain numerous random interruptions. Chemical analysis of phi25 DNA demonstrated that 5-hydroxymethyluracil replaces thymine and that the DNA has a mole per cent (guanine plus cytosine) of 42.
journal_name
J Viroljournal_title
Journal of virologyauthors
Liljemark WF,Anderson DLdoi
10.1128/JVI.6.1.107-113.1970subject
Has Abstractpub_date
1970-07-01 00:00:00pages
107-13issue
1eissn
0022-538Xissn
1098-5514journal_volume
6pub_type
杂志文章abstract::Sindbis virus nonstructural polyproteins and their cleavage products are believed to be essential components of viral RNA replication and transcription complexes. Although numerous studies have investigated the effect of mutations in nsP1-, nsP2-, and nsP4-coding regions on Sindbis virus-specific RNA synthesis, relati...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.9.5781-5791.1994
更新日期:1994-09-01 00:00:00
abstract::Temperature-sensitive (ts) mutants of the T4 phage rII gene were islated and used in temperature shift experiments that revelaed two different expressions for the normal rII (rII+) gene function in vivo: (i) an early expression (0 to 12 min postinfection at 30 C) that prevents restriction of T4 growth in Escherichia c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.16.4.974-981.1975
更新日期:1975-10-01 00:00:00
abstract::Among Moloney murine leukemia viruses (Mo-MuLVs) having stop codons other than UAG at the gag-pol junction, Mo-MuLV with UAA, but not with UGA, had a replication disadvantage. Mo-MuLV with a glutamine codon (CAG) at the junction did not replicate. A revertant of this virus consisted of the original virus and a virus w...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.11.6376-6379.1991
更新日期:1991-11-01 00:00:00
abstract::The hepatitis B virus (HBV) X protein (HBx) is a multifunctional regulator of cellular signal transduction and transcription pathways and has a critical role in HBV replication. Much of the cytoplasmic signal transduction activity associated with HBx expression and its stimulation of viral replication is attributable ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.9.4406-4414.2006
更新日期:2006-05-01 00:00:00
abstract::Resolution of virus infections depends on the priming of virus-specific CD8+ T cells by dendritic cells (DC). While this process requires major histocompatibility complex (MHC) class I-restricted antigen presentation by DC, the relative contribution to CD8+ T cell priming by infected DC is less clear. We have addresse...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01508-17
更新日期:2018-01-17 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) alpha protein ICP27 regulates the transition between the delayed-early and late phases of the viral infection. Previous genetic analyses have suggested that the important functional domains of ICP27 map to its carboxyl-terminal half. One striking feature of the primary sequence ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.4.1778-1787.1993
更新日期:1993-04-01 00:00:00
abstract::The relative antigenicity of the individual herpes simplex virus type 1 (KOS) glycoproteins gC and gB was analyzed in BALB/c mice by using KOS mutants altered in their ability to present these antigens on cell surface membranes during infection. The mutants employed were as follows: syn LD70 , a non-temperature-sensit...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.50.3.805-812.1984
更新日期:1984-06-01 00:00:00
abstract::A number of naturally occurring hepatitis B virus mutants that cannot synthesize the virus precore protein have been identified. Such mutants have been associated with more severe forms of hepatitis, including fulminant hepatitis. The most common mutation observed is a substitution of G to A in the distal precore gene...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.9.5682-5684.1992
更新日期:1992-09-01 00:00:00
abstract::Extrachromosomal DNA was isolated from tissue culture cells that were acutely infected with simian sarcoma virus (SSV) and its associated helper (simian sarcoma-associated virus [SSAV]). Two sizes of closed circular viral genomic DNA intermediates were isolated, cleaved at the single EcoRI site, and ligated to the Cha...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.41.2.593-604.1982
更新日期:1982-02-01 00:00:00
abstract::We report the use of a HeLa whole cell extract (WCE) runoff transcription system for the study of cis- and trans-acting elements, participating in the regulation of transcription initiation from the P38 promoter of the parvovirus minute virus of mice (MVM). Our initial studies with HeLa WCE indicated that transcriptio...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.1.354-360.1990
更新日期:1990-01-01 00:00:00
abstract::We established a novel experimental model for human T-cell leukemia virus type 1 (HTLV-1)-induced tumor using NOD-SCID/gammac(null) (NOG) mice. This model is very useful for investigating the mechanism of tumorigenesis and malignant cell growth of adult T-cell leukemia (ATL)/lymphoma, which still remains unclear. Nine...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.9.5286-5294.2003
更新日期:2003-05-01 00:00:00
abstract::Dendritic cells (DC) are believed to play an important role in the initiation of innate and adaptive immune responses to infection, including respiratory tract infections, where respiratory DC (RDC) perform this role. In this report, we examined the susceptibilities of isolated murine RDC to influenza virus infection ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02367-07
更新日期:2008-05-01 00:00:00
abstract::We isolated, purified, and characterized the hemagglutinin-neuraminidase (HN) of human parainfluenza virus type 1, with the ultimate goal of producing crystals suitable for three-dimensional X-ray structure analysis. Pronase was used to cleave the globular head of the HN molecule directly from virus particles, forming...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.12.7597-7600.1992
更新日期:1992-12-01 00:00:00
abstract::Selecting human immunodeficiency virus (HIV) sequences for inclusion within vaccines has been a difficult problem, as circulating HIV strains evolve relentlessly and become increasingly divergent over time. We report an assessment of this divergence from three perspectives: (i) across different hosts as a function of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.4.1637-1644.2006
更新日期:2006-02-01 00:00:00
abstract::Epstein-Barr virus (EBV)-induced B-cell growth transformation, a central feature of the virus' strategy for colonizing the human B-cell system, requires full virus latent gene expression and is initiated by transcription from the viral promoter Wp. Interestingly, when EBV accesses other cell types, this growth-transfo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.22.10458-10467.2000
更新日期:2000-11-01 00:00:00
abstract::The development of cancer vaccines requires approaches to induce expansion and functional differentiation of tumor antigen-specific cytotoxic T lymphocyte (CTL) effectors which posses cytolytic capability and produce cytokines. Efficient induction of such cells is hindered by the poor immunogenicity of tumor antigens ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.13.7411-7424.2003
更新日期:2003-07-01 00:00:00
abstract::Antisera were prepared against the three structural polypeptides of HADEN virus dissociated with sodium dodecyl sulfate. These immunological reagents were used in immunofluorescence tests to study the kinetics and location of polypeptide antigen appearance in infected cells. These sera did not neutralize virus infecti...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.13.3.608-613.1974
更新日期:1974-03-01 00:00:00
abstract::Polymerase basic protein 2 (PB2), a component of the influenza virus polymerase complex, when expressed alone from cloned cDNA in the absence of other influenza virus proteins, is transported into the nucleus. In this study, we have examined the nuclear translocation signal of PB2 by making deletions and mutations in ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.1.245-253.1991
更新日期:1991-01-01 00:00:00
abstract::Infection by viruses depends on a balance between capsid stability and dynamics. This study investigated biologically and biotechnologically relevant aspects of the relationship in foot-and-mouth disease virus (FMDV) between capsid structure and thermostability and between thermostability and infectivity. In the FMDV ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02293-18
更新日期:2019-05-01 00:00:00
abstract::The effect of monoclonal antibodies on the growth of herpes simplex virus type 1 in trigeminal ganglia was investigated. Four-week-old mice were infected on an abrased cornea with herpes simplex virus type 1. Forty-eight hours after infection, trigeminal ganglia ipsilateral with infected eyes were removed and placed i...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.51.3.656-661.1984
更新日期:1984-09-01 00:00:00
abstract::The matrix (M) protein of vesicular stomatitis virus (VSV) is a potent inhibitor in vivo of transcription by all three host RNA polymerases (RNAP). In the case of host RNA polymerase II (RNAPII), the inhibition is due to lack of activity of the TATA-binding protein (TBP), which is a subunit of the basal transcription ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.9.4453-4458.2001
更新日期:2001-05-01 00:00:00
abstract::Human respiratory syncytial virus (HRSV) is the leading cause of serious pediatric acute respiratory tract infections, and a better understanding is needed of the host response to HRSV and its attenuated vaccine derivatives. It has been shown previously that HRSV nonstructural proteins 1 and 2 (NS1 and NS2) inhibit th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.9.5353-5362.2005
更新日期:2005-05-01 00:00:00
abstract::The multiplicity of attachment (MOA) of a virion in any particular time interval is the average number of cellular attachment opportunities that must be blocked to keep the virion in suspension. MOA is usually proportional to incubation time and cell concentration. Low MOA (like low multiplicity of infection) is requi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.3.1782-1789.1994
更新日期:1994-03-01 00:00:00
abstract::Many of the approximately 165 proteins encoded by the African swine fever virus (ASFV) genome do not have significant similarity to known proteins and have not been studied experimentally. One such protein is DP148R. We showed that the DP148R gene is transcribed at early times postinfection. Deletion of this gene did ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01428-17
更新日期:2017-11-30 00:00:00
abstract::The treatment of bacteriophage T4D with 2-hydroxy-5-nitrobenzyl bromide, a specific reagent for alkylating the indole ring of tryptophan residues, converts these particles from a cofactor-independent form to a cofactor-sensitive form. These treated T4D particles phenotypically resemble T4B particles in certain respect...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.2.5.480-487.1968
更新日期:1968-05-01 00:00:00
abstract::The pathogenic parvovirus B19 (B19V) has an extreme tropism for human erythroid progenitor cells. In vitro, only a few erythroid leukemic cell lines (JK-1 and KU812Ep6) or megakaryoblastoid cell lines (UT7/Epo and UT7/Epo-S1) with erythroid characteristics support B19V replication, but these cells are only semipermiss...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02247-07
更新日期:2008-03-01 00:00:00
abstract::A restriction endonuclease obtained from Haemophilus gallinarum (hgaI) cleaves polyoma DNA at four specific sites. Using the EcoRI, HindIII, and HpaII endonuclease restriction sites as reference, the four HgaI cleavage sites were mapped at 0.02, 0.14, 0.27, and 0.48 fractional lengths, clockwise, from the single EcoR...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.18.2.793-798.1976
更新日期:1976-05-01 00:00:00
abstract::Influenza virus defective interfering (DI) particles are naturally occurring noninfectious virions typically generated during in vitro serial passages in cell culture of the virus at a high multiplicity of infection. DI particles are recognized for the role they play in inhibiting viral replication and for the impact ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00240-13
更新日期:2013-07-01 00:00:00
abstract::Chikungunya virus (CHIKV) is a mosquito-borne alphavirus responsible for chikungunya fever. Nonstructural protein 2 (nsP2), a multifunctional protein essential for viral replication, has an N-terminal helicase region (nsP2h), which as both nucleotide triphosphatase and RNA triphosphatase activities, as well as a C-ter...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01470-20
更新日期:2020-12-16 00:00:00
abstract::Lymphomas induced by the Abelson murine leukemia virus (A-MuLV) were examined for the expression of biochemical and biological markers associated with A-MuLV transformation before and after in vivo growth in genetically distinguishable host mice. Although all tumors and clonal lines derived from them initially express...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.43.1.92-103.1982
更新日期:1982-07-01 00:00:00