Protein P4 of double-stranded RNA bacteriophage phi 6 is accessible on the nucleocapsid surface: epitope mapping and orientation of the protein.

Abstract:

:Protein P4, an early protein of double-stranded RNA bacteriophage phi 6, is a component of the virion-associated RNA polymerase complex and possesses a nucleoside triphosphate (NTP) phosphohydrolase activity. We have produced and characterized a panel of 20 P4-specific monoclonal antibodies. Epitope mapping using truncated molecules of recombinant P4 revealed seven linear epitopes. The accessibility of the epitopes on the phi 6 nucleocapsid (NC) surface showed that at least the C terminus and an internal domain, containing the consensus sequence for NTP binding, protrude the NC shell. Four of the NC-binding antibodies distorted the integrity of the NC by releasing protein P4 and the major NC surface protein P8. This finding suggests a close contact between these two proteins. The dissociation of the NC led to the activation of the virion-associated RNA polymerase. The multimeric status of the recombinant P4 was similar to that of the virion-associated P4, indicating that no accessory virus proteins are needed for its multimerization.

journal_name

J Virol

journal_title

Journal of virology

authors

Ojala PM,Juuti JT,Bamford DH

doi

10.1128/JVI.67.5.2879-2886.1993

subject

Has Abstract

pub_date

1993-05-01 00:00:00

pages

2879-86

issue

5

eissn

0022-538X

issn

1098-5514

journal_volume

67

pub_type

杂志文章
  • Primary severe acute respiratory syndrome coronavirus infection limits replication but not lung inflammation upon homologous rechallenge.

    abstract::Our knowledge regarding immune-protective and immunopathogenic events in severe acute respiratory syndrome coronavirus (SARS-CoV) infection is limited, and little is known about the dynamics of the immune response at the primary site of disease. Here, an African green monkey (AGM) model was used to elucidate immune me...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.06791-11

    authors: Clay C,Donart N,Fomukong N,Knight JB,Lei W,Price L,Hahn F,Van Westrienen J,Harrod KS

    更新日期:2012-04-01 00:00:00

  • Medium tumor antigen of polyomavirus transformation-defective mutant NG59 is associated with 73-kilodalton heat shock protein.

    abstract::Affinity-purified medium T antigen encoded by NG59, a nontransforming mutant of polyomavirus, is specifically associated with a protein of 72,000 daltons (72K protein). Medium T antigens of wild-type polyomavirus and the transformation-competent mutant dl8 are not associated with the 72K protein. Instead, they form a ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.61.2.405-410.1987

    authors: Walter G,Carbone A,Welch WJ

    更新日期:1987-02-01 00:00:00

  • Resveratrol inhibits the TRIF-dependent pathway by upregulating sterile alpha and armadillo motif protein, contributing to anti-inflammatory effects after respiratory syncytial virus infection.

    abstract:UNLABELLED:Respiratory syncytial virus (RSV) is the most important cause of lower respiratory tract infection in young children and the leading cause of infant hospitalization worldwide. Uncontrolled response to RSV is mediated by a toll-like receptor (TLR)-mediated immune response. Resveratrol possesses anti-RSV activ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.03637-13

    authors: Liu T,Zang N,Zhou N,Li W,Xie X,Deng Y,Ren L,Long X,Li S,Zhou L,Zhao X,Tu W,Wang L,Tan B,Liu E

    更新日期:2014-04-01 00:00:00

  • Selection of RNA replicons capable of persistent noncytopathic replication in mammalian cells.

    abstract::The natural life cycle of alphaviruses, a group of plus-strand RNA viruses, involves transmission to vertebrate hosts via mosquitoes. Chronic infections are established in mosquitoes (and usually in mosquito cell cultures), but infection of susceptible vertebrate cells typically results in rapid shutoff of host mRNA t...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.5.3854-3865.1999

    authors: Frolov I,Agapov E,Hoffman TA Jr,Prágai BM,Lippa M,Schlesinger S,Rice CM

    更新日期:1999-05-01 00:00:00

  • Analysis of picornavirus 2A(pro) proteins: separation of proteinase from translation and replication functions.

    abstract::The poliovirus (PV) genome was manipulated by replacing its 2A-encoding sequence with the corresponding sequence of coxsackie B4 virus (CBV4) or human rhinovirus type 2 (HRV2). In vitro translation of the resulting chimeric PV genomes revealed a normal cis-cleavage activity for both heterologous 2A(pro) proteinases in...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.69.12.7445-7452.1995

    authors: Lu HH,Li X,Cuconati A,Wimmer E

    更新日期:1995-12-01 00:00:00

  • High-level eucaryotic in vivo expression of biologically active measles virus hemagglutinin by using an adenovirus type 5 helper-free vector system.

    abstract::The entire measles virus (MV) hemagglutinin (HA)-coding region was reconstructed from cloned cDNAs and used as part of a hybrid transcription unit to replace a region of the adenovirus type 5 genome corresponding to the entire E1a transcription unit and most of the E1b transcription unit. The resulting recombinant vir...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.62.8.2718-2727.1988

    authors: Alkhatib G,Briedis DJ

    更新日期:1988-08-01 00:00:00

  • Differential glycosylation of the Cas-Br-E env protein is associated with retrovirus-induced spongiform neurodegeneration.

    abstract::The wild mouse ecotropic retrovirus, Cas-Br-E, induces progressive, noninflammatory spongiform neurodegenerative disease in susceptible mice. Functional genetic analysis of the Cas-Br-E genome indicates that neurovirulence maps to the env gene, which encodes the surface glycoprotein responsible for binding and fusion ...

    journal_title:Journal of virology

    pub_type: 杂志文章,评审

    doi:10.1128/jvi.74.3.1558-1565.2000

    authors: Lynch WP,Sharpe AH

    更新日期:2000-02-01 00:00:00

  • Modeling the acute and chronic phases of Theiler murine encephalomyelitis virus infection.

    abstract::Theiler murine encephalomyelitis virus (TMEV) infection of a mouse's central nervous system is biphasic: first the virus infects motor neurons (acute phase), and this is followed by a chronic phase in which the virus infects glial cells (primarily microglia and macrophages [M]) of the spinal cord white matter, leading...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.03395-12

    authors: Zhang J,Lipton HL,Perelson AS,Dahari H

    更新日期:2013-04-01 00:00:00

  • Molecular cloning and characterization of gag-, pol-, and env-related gene sequences in the ev- chicken.

    abstract::Using less stringent hybridization conditions and cloned viral DNA probes representing the avian sarcoma virus gag, pol, env, and long terminal repeat (LTR) gene sequences, we detected related sequences in two avian species purportedly lacking all endogenous avian leukosis viruses, the ev- chicken and the Japanese qua...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.59.3.669-675.1986

    authors: Dunwiddie CT,Resnick R,Boyce-Jacino M,Alegre JN,Faras AJ

    更新日期:1986-09-01 00:00:00

  • Viral RNA mutations are region specific and increased by ribavirin in a full-length hepatitis C virus replication system.

    abstract::High rates of genetic variation ensure the survival of RNA viruses. Although this variation is thought to result from error-prone replication, RNA viruses must also maintain highly conserved genomic segments. A balance between conserved and variable viral elements is especially important in order for viruses to avoid ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.76.17.8505-8517.2002

    authors: Contreras AM,Hiasa Y,He W,Terella A,Schmidt EV,Chung RT

    更新日期:2002-09-01 00:00:00

  • Regulation of autophagic activation by Rta of Epstein-Barr virus via the extracellular signal-regulated kinase pathway.

    abstract::Autophagy is an intracellular degradation pathway that provides a host defense mechanism against intracellular pathogens. However, many viruses exploit this mechanism to promote their replication. This study shows that lytic induction of Epstein-Barr virus (EBV) increases the membrane-bound form of LC3 (LC3-II) and LC...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02033-14

    authors: Hung CH,Chen LW,Wang WH,Chang PJ,Chiu YF,Hung CC,Lin YJ,Liou JY,Tsai WJ,Hung CL,Liu ST

    更新日期:2014-10-01 00:00:00

  • Regulation of Hepatitis C Virus Infection by Cellular Retinoic Acid Binding Proteins through the Modulation of Lipid Droplet Abundance.

    abstract::Retinoid (vitamin A) is an essential diet constituent that governs a broad range of biological processes. Its biologically active metabolite, all-trans retinoic acid (ATRA), exhibits a potent antiviral property by enhancing both innate and adaptive antiviral immunity against a variety of viral pathogens, such as, but ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02302-18

    authors: Bang BR,Li M,Tsai KN,Aoyagi H,Lee SA,Machida K,Aizaki H,Jung JU,Ou JJ,Saito T

    更新日期:2019-04-03 00:00:00

  • An exonic splicing silencer downstream of the 3' splice site A2 is required for efficient human immunodeficiency virus type 1 replication.

    abstract::Alternative splicing of the human immunodeficiency virus type 1 (HIV-1) genomic mRNA produces more than 40 unique viral mRNA species, of which more than half remain incompletely spliced within an HIV-1-infected cell. Regulation of splicing at HIV-1 3' splice sites (3'ss) requires suboptimal polypyrimidine tracts, and ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.79.16.10478-10486.2005

    authors: Madsen JM,Stoltzfus CM

    更新日期:2005-08-01 00:00:00

  • Palmitoylation and polymerization of hepatitis C virus NS4B protein.

    abstract::Hepatitis C Virus (HCV) NS4B protein induces a specialized membrane structure which may serve as the replication platform for HCV RNA replication. In the present study, we demonstrated that NS4B has lipid modifications (palmitoylation) on two cysteine residues (cysteines 257 and 261) at the C-terminal end. Site-specif...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00053-06

    authors: Yu GY,Lee KJ,Gao L,Lai MM

    更新日期:2006-06-01 00:00:00

  • Helper virus-independent transcription and multimerization of a satellite RNA associated with cucumber mosaic virus.

    abstract::Satellite RNAs are the smallest infectious agents whose replication is thought to be completely dependent on their helper virus (HV). Here we report that, when expressed autonomously in the absence of HV, a variant of satellite RNA (satRNA) associated with Cucumber mosaic virus strain Q (Q-satRNA) has a propensity to ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00018-12

    authors: Choi SH,Seo JK,Kwon SJ,Rao AL

    更新日期:2012-05-01 00:00:00

  • Bacteriophage T4 virion dihydrofolate reductase: approaches to quantitation and assessment of function.

    abstract::This paper is concerned with the physiological role(s) of T4 phage-coded dihydrofolate reductase, which functions both in DNA precursor metabolism and as a virion protein. (i) We have detected enzyme activity in noninfectious particles produced under restrictive conditions by gene 11 mutants. This supports the conclus...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.23.3.645-658.1977

    authors: Mosher RA,DiRenzo AB,Mathews CK

    更新日期:1977-09-01 00:00:00

  • Pseudotype formation of murine leukemia virus with the G protein of vesicular stomatitis virus.

    abstract::Mixed infection of a cell by vesicular stomatitis virus (VSV) and retroviruses results in the production of progeny virions bearing the genome of one virus encapsidated by the envelope proteins of the other. The mechanism for the phenomenon of pseudotype formation is not clear, although specific recognition of a viral...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.65.3.1202-1207.1991

    authors: Emi N,Friedmann T,Yee JK

    更新日期:1991-03-01 00:00:00

  • Claudin-6 and claudin-9 function as additional coreceptors for hepatitis C virus.

    abstract::Hepatitis C virus (HCV) is a global challenge to public health. Several factors have been proven to be critical for HCV entry, including the newly identified claudin-1 (CLDN1). However, the mechanism of HCV entry is still obscure. Presently, among the 20 members of the claudin family identified in humans so far, CLDN1...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01457-07

    authors: Zheng A,Yuan F,Li Y,Zhu F,Hou P,Li J,Song X,Ding M,Deng H

    更新日期:2007-11-01 00:00:00

  • Dissecting the Role of DDX21 in Regulating Human Cytomegalovirus Replication.

    abstract::DDX21 regulates the biogenesis of rRNA and transcription of ribonucleoprotein genes. Recently, it has been reported that DDX21 regulates the growth of some RNA viruses through various mechanisms, such as inhibiting viral genome replication, suppressing virion assembly and release, and modulating antiviral immune respo...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01222-19

    authors: Hao H,Han T,Xuan B,Sun Y,Tang S,Yue N,Qian Z

    更新日期:2019-11-26 00:00:00

  • cDNA sequence analysis confirms that the etiologic agent of callitrichid hepatitis is lymphocytic choriomeningitis virus.

    abstract::Callitrichid hepatitis is an infection of New World primates caused by an arenavirus, currently referred to as callitrichid hepatitis virus, that is closely related to lymphocytic choriomeningitis virus (LCMV). We have cloned and sequenced the GP-C gene of callitrichid hepatitis virus and found that the cDNA sequence ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.69.2.1349-1352.1995

    authors: Stephensen CB,Park JY,Blount SR

    更新日期:1995-02-01 00:00:00

  • Strandedness and complementarity of DNA from long-term RNA-dependent DNA polymerase reactions of Soehner-Dmochowski murine sarcoma virus.

    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

    authors: East JL,Knesek JE,Allen PT,Dmochowski L

    更新日期:1973-11-01 00:00:00

  • Virion Structure of Iflavirus Slow Bee Paralysis Virus at 2.6-Angstrom Resolution.

    abstract:UNLABELLED:The western honeybee (Apis mellifera) is the most important commercial insect pollinator. However, bees are under pressure from habitat loss, environmental stress, and pathogens, including viruses that can cause lethal epidemics. Slow bee paralysis virus (SBPV) belongs to the Iflaviridae family of nonenvelop...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00680-16

    authors: Kalynych S,Přidal A,Pálková L,Levdansky Y,de Miranda JR,Plevka P

    更新日期:2016-07-27 00:00:00

  • Integration, expression, and infectivity of exogenously acquired proviruses of Rous-associated virus-O.

    abstract::We investigated the integration sites, infectivities, and expression of Rous-associated virus-0 (Rav-0) DNAs in exogenously infected turkey and chicken cells. Restriction endonuclease analyses of the DNAs of RAV-0-infected cells indicated that unique integration sites of RAV-0 DNA were detectable in clones of RAV-0-in...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.36.3.684-691.1980

    authors: Jenkins NA,Cooper GM

    更新日期:1980-12-01 00:00:00

  • Deoxynucleoside triphosphate incorporation mechanism of foamy virus (FV) reverse transcriptase: implications for cell tropism of FV.

    abstract::Here, we investigated the pre-steady-state deoxynucleoside triphosphate (dNTP) incorporation kinetics of primate foamy virus (PFV) reverse transcriptase (RT) in comparison with those of HIV-1 and MuLV RTs. PFV RT displayed a drastic reduction in primer extension at low dNTP concentrations where HIV-1 RT remains highly...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00088-08

    authors: Santos-Velazquez J,Kim B

    更新日期:2008-08-01 00:00:00

  • Processing and localization of Dengue virus type 2 polyprotein precursor NS3-NS4A-NS4B-NS5.

    abstract::Processing of dengue virus type 2 polyprotein precursor NS3-NS4A-NS4B-NS5 could be mediated by the catalytically active NS3 protease domain and NS2B in trans at the dibasic sites NS3-NS4A and NS4B-NS5. Subcellular localization of the unprocessed precursor NS3-NS4A-NS4B-NS5 showed that it was confined to a distinct sub...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.66.12.7549-7554.1992

    authors: Zhang L,Mohan PM,Padmanabhan R

    更新日期:1992-12-01 00:00:00

  • CA Mutation N57A Has Distinct Strain-Specific HIV-1 Capsid Uncoating and Infectivity Phenotypes.

    abstract::The ability of human immunodeficiency virus type 1 (HIV-1) to transduce nondividing cells is key to infecting terminally differentiated macrophages, which can serve as a long-term reservoir of HIV-1 infection. The mutation N57A in the viral CA protein renders HIV-1 cell cycle dependent, allowing examination of HIV-1 i...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00214-19

    authors: Fischer DK,Saito A,Kline C,Cohen R,Watkins SC,Yamashita M,Ambrose Z

    更新日期:2019-04-17 00:00:00

  • The vaccinia virus A14.5L gene encodes a hydrophobic 53-amino-acid virion membrane protein that enhances virulence in mice and is conserved among vertebrate poxviruses.

    abstract::A short sequence, located between the A14L and A15L open reading frames (ORFs) of vaccinia virus, was predicted to encode a hydrophobic protein of 53 amino acids that is conserved in orthopoxviruses, leporipoxviruses, yatapoxiruses, and molluscipoxviruses. We constructed a recombinant vaccinia virus with a 10-codon ep...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.74.9.4085-4092.2000

    authors: Betakova T,Wolffe EJ,Moss B

    更新日期:2000-05-01 00:00:00

  • Proteolytic processing of the Ebola virus glycoprotein is not critical for Ebola virus replication in nonhuman primates.

    abstract::Enveloped viruses often require cleavage of a surface glycoprotein by a cellular endoprotease such as furin for infectivity and virulence. Previously, we showed that Ebola virus glycoprotein does not require the furin cleavage motif for virus replication in cell culture. Here, we show that there are no appreciable dif...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02486-06

    authors: Neumann G,Geisbert TW,Ebihara H,Geisbert JB,Daddario-DiCaprio KM,Feldmann H,Kawaoka Y

    更新日期:2007-03-01 00:00:00

  • Phenotypic characterization of mutants in vaccinia virus gene G2R, a putative transcription elongation factor.

    abstract::The phenotypic defects of two mutants of vaccinia virus, the lesions of which map to gene G2R, were characterized in vivo, and the results suggest a role for the G2R protein in viral transcription elongation. Both a temperature-sensitive mutant, Cts56, and an isatin-beta-thiosemicarbazone-dependent deletion mutant, G2...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.70.1.47-54.1996

    authors: Black EP,Condit RC

    更新日期:1996-01-01 00:00:00

  • Intrahepatic Cross-Presentation and Hepatocellular Antigen Presentation Play Distinct Roles in the Induction of Hepatitis B Virus-Specific CD8+ T Cell Responses.

    abstract::CD8+ T cells are the key cellular effectors mediating the clearance of hepatitis B virus (HBV) infections. However, early immunological events surrounding the priming of HBV-specific CD8+ T cell responses remain poorly understood. This study examined the importance of priming location and the relative contribution of ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00920-18

    authors: Murata Y,Kawashima K,Sheikh K,Tanaka Y,Isogawa M

    更新日期:2018-10-12 00:00:00