Potyviral VPg enhances viral RNA Translation and inhibits reporter mRNA translation in planta.

Abstract:

:Viral protein genome-linked (VPg) plays a central role in several stages of potyvirus infection. This study sought to answer questions about the role of Potato virus A (PVA; genus Potyvirus) VPg in viral and host RNA expression. When expressed in Nicotiana benthamiana leaves in trans, a dual role of VPg in translation is observed. It repressed the expression of monocistronic luciferase (luc) mRNA and simultaneously induced a significant upregulation in the expression of both replicating and nonreplicating PVA RNAs. This enhanced viral gene expression was due at least to the 5' untranslated region (UTR) of PVA RNA, eukaryotic initiation factors 4E and iso 4E [eIF4E/eIF(iso)4E], and the presence of a sufficient amount of VPg. Coexpression of VPg with viral RNA increased the viral RNA amount, which was not the case with the monocistronic mRNA. Both mutations at certain lysine residues in PVA VPg and eIF4E/eIF(iso)4E depletion reduced its ability to upregulate the viral RNA expression. These modifications were also involved in VPg-mediated downregulation of monocistronic luc expression. These results suggest that VPg can titrate eIF4Es from capped monocistronic RNAs. Because VPg-mediated enhancement of viral gene expression required eIF4Es, it is possible that VPg directs eIF4Es to promote viral RNA expression. From this study it is evident that VPg can serve as a specific regulator of PVA expression by boosting the viral RNA amounts as well as the accumulation of viral translation products. Such a mechanism could function to protect viral RNA from being degraded and to secure efficient production of coat protein (CP) for virion formation.

journal_name

J Virol

journal_title

Journal of virology

authors

Eskelin K,Hafrén A,Rantalainen KI,Mäkinen K

doi

10.1128/JVI.00052-11

subject

Has Abstract

pub_date

2011-09-01 00:00:00

pages

9210-21

issue

17

eissn

0022-538X

issn

1098-5514

pii

JVI.00052-11

journal_volume

85

pub_type

杂志文章
  • Correlation of the Genetic Map and the Endonuclease Site Map of Bacillus subtilis Bacteriophage SP02.

    abstract::By marker rescue of bacteriophage SP02 sus mutants with purified bacteriophage SP02 DNA fragments, 11 of the 17 known bacteriophage SP02 sus loci were assigned to discrete DNA fragments. The left-most genetic locus, susA, was found to reside near one bacteriophage SP02 terminus (EcoRI-C1 fragment), whereas the right-m...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.42.1.131-134.1982

    authors: Graham S,Sutton S,Yoneda Y,Young FE

    更新日期:1982-04-01 00:00:00

  • Identification and Characterization of a Human Coronavirus 229E Nonstructural Protein 8-Associated RNA 3'-Terminal Adenylyltransferase Activity.

    abstract::Coronavirus nonstructural protein 8 (nsp8) has been suggested to have diverse activities, including noncanonical template-dependent polymerase activities. Here, we characterized a recombinant form of the human coronavirus 229E (HCoV-229E) nsp8 and found that the protein has metal ion-dependent RNA 3'-terminal adenylyl...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00291-19

    authors: Tvarogová J,Madhugiri R,Bylapudi G,Ferguson LJ,Karl N,Ziebuhr J

    更新日期:2019-05-29 00:00:00

  • Efficient in vitro expansion of human immunodeficiency virus (HIV)-specific T-cell responses by gag mRNA-electroporated dendritic cells from treated and untreated HIV type 1-infected individuals.

    abstract::Developing an immunotherapy to keep human immunodeficiency virus type 1 (HIV-1) replication suppressed while discontinuing highly active antiretroviral therapy (HAART) is an important challenge. In the present work, we evaluated in vitro whether dendritic cells (DC) electroporated with gag mRNA can induce HIV-specific...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02080-07

    authors: Van Gulck ER,Vanham G,Heyndrickx L,Coppens S,Vereecken K,Atkinson D,Florence E,Kint I,Berneman ZN,Van Tendeloo V

    更新日期:2008-04-01 00:00:00

  • PrPC Governs Susceptibility to Prion Strains in Bank Vole, While Other Host Factors Modulate Strain Features.

    abstract::Bank vole is a rodent species that shows differential susceptibility to the experimental transmission of different prion strains. In this work, the transmission features of a panel of diverse prions with distinct origins were assayed both in bank vole expressing methionine at codon 109 (Bv109M) and in transgenic mice ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01592-16

    authors: Espinosa JC,Nonno R,Di Bari M,Aguilar-Calvo P,Pirisinu L,Fernández-Borges N,Vanni I,Vaccari G,Marín-Moreno A,Frassanito P,Lorenzo P,Agrimi U,Torres JM

    更新日期:2016-11-14 00:00:00

  • Regulation of EBNA gene transcription in lymphoblastoid cell lines: characterization of sequences downstream of BCR2 (Cp).

    abstract::During Epstein-Barr virus (EBV) latent infection of B lymphocytes in vitro, six EBV nuclear antigens (EBNAs) are expressed from one of two promoters, Cp and Wp, whose activities are mutually exclusive. Upon infection, Wp is initially active, followed by a switch to Cp for the duration of latency. In this study, the im...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.71.1.120-128.1997

    authors: Puglielli MT,Desai N,Speck SH

    更新日期:1997-01-01 00:00:00

  • The immediate-early gene product encoded by open reading frame 57 of herpesvirus saimiri modulates gene expression at a posttranscriptional level.

    abstract::The herpesvirus saimiri (HVS) immediate-early gene product encoded by open reading frame (ORF) 57 shares limited amino acid homology with HSV-1 ICP27 and Epstein-Barr virus BMLF1, both regulatory proteins. The ORF 57 gene has been proposed to be spliced based on the genome sequence, and here we confirm the intron-exon...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.1.857-861.1998

    authors: Whitehouse A,Cooper M,Meredith DM

    更新日期:1998-01-01 00:00:00

  • Structure of and alterations to defective murine sarcoma virus particles lacking envelope proteins and core polyprotein cleavage.

    abstract::HTG2 hamster cells produce a defective murine sarcoma virus lacking gp70 and, consequently, viral surface projections (knobs), but the lack of knobs appears to have no effect on intramembrane particle distribution. In addition, it has been noted that the core of the virus remains in the "immature" form as a result of ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.36.3.872-877.1980

    authors: Demsey A,Collins F,Kawka D

    更新日期:1980-12-01 00:00:00

  • Minimum requirements for immunogenic and antigenic activities of homologs of a synthetic peptide of influenza virus hemagglutinin.

    abstract::Synthetic peptides of increasing length and corresponding in sequence to the C-terminal end of the HA1 molecule of influenza virus were constructed and examined for their immunogenic and antigenic properties. Peptides containing at least the four C-terminal amino acids, when coupled to keyhole limpet hemocyanin, were ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.62.12.4745-4751.1988

    authors: Tang XL,Tregear GW,White DO,Jackson DC

    更新日期:1988-12-01 00:00:00

  • CD150 (SLAM) is a receptor for measles virus but is not involved in viral contact-mediated proliferation inhibition.

    abstract::Measles virus (MV) interacts with cellular receptors on the surface of peripheral blood lymphocytes (PBL) which mediate virus binding and uptake. Simultaneously, the direct contact of the viral glycoproteins with the cell surface induces a negative signal blocking progression to the S phase of the cell cycle, resultin...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.75.10.4499-4505.2001

    authors: Erlenhoefer C,Wurzer WJ,Löffler S,Schneider-Schaulies S,ter Meulen V,Schneider-Schaulies J

    更新日期:2001-05-01 00:00:00

  • Three domains in the simian virus 40 core origin orchestrate the binding, melting, and DNA helicase activities of T antigen.

    abstract::The simian virus 40 (SV40) core origin of replication consists of three functional domains. The sequence 5'-CACTACTTCTGGAATAG-3' with an imperfect inverted repeat (underlined), a palindrome with four 5'-GAGGC-3' pentanucleotide repeats, and a 17-base-pair A + T-rich segment. We have been able to assign primary functio...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.64.2.509-518.1990

    authors: Parsons R,Anderson ME,Tegtmeyer P

    更新日期:1990-02-01 00:00:00

  • New genes from old: redeployment of dUTPase by herpesviruses.

    abstract::Published work (D. J. McGeoch, Nucleic Acids Res. 18:4105-4110, 1990; J. E. McGeehan, N. W. Depledge, and D. J. McGeoch, Curr. Protein Peptide Sci. 2:325-333, 2001) has indicated that evolution of dUTPase in the class of herpesviruses that infect mammals and birds involved capture of a host gene followed by a duplicat...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.79.20.12880-12892.2005

    authors: Davison AJ,Stow ND

    更新日期:2005-10-01 00:00:00

  • tRNA's associated with the 70S RNA of avian myeloblastosis virus.

    abstract::The distribtuion of various amino acid tRNA's in the 4S RNA components of avian myeloblastosis virus (AMV) and in 4S RNA prepared from chicken cmbryo cells, chicken myeloblasts, and chicken livers was determined. This was done by aminoacylating the 4S RNA samples with a mixture of 17 radioactive amino acids and subseq...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.16.6.1608-1614.1975

    authors: Waters LC,Mullin BC,Bailiff EG,Popp RA

    更新日期:1975-12-01 00:00:00

  • In Vivo Knockdown of the Herpes Simplex Virus 1 Latency-Associated Transcript Reduces Reactivation from Latency.

    abstract::During herpes simplex virus (HSV) latency, most viral genes are silenced, with the exception of one region of the genome encoding the latency-associated transcript (LAT). This long noncoding RNA was originally described as having a role in enhancing HSV-1 reactivation. However, subsequent evidence showing that the LAT...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00812-18

    authors: Watson ZL,Washington SD,Phelan DM,Lewin AS,Tuli SS,Schultz GS,Neumann DM,Bloom DC

    更新日期:2018-07-31 00:00:00

  • Asparagine Is a Critical Limiting Metabolite for Vaccinia Virus Protein Synthesis during Glutamine Deprivation.

    abstract::Viruses actively interact with host metabolism because viral replication relies on host cells to provide nutrients and energy. Vaccinia virus (VACV; the prototype poxvirus) prefers glutamine to glucose for efficient replication to the extent that VACV replication is hindered in glutamine-free medium. Remarkably, our d...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01834-18

    authors: Pant A,Cao S,Yang Z

    更新日期:2019-06-14 00:00:00

  • The two functions of herpes simplex virus 1 ICP0, inhibition of silencing by the CoREST/REST/HDAC complex and degradation of PML, are executed in tandem.

    abstract::ICP0, an alpha (immediate-early) protein of herpes simplex virus 1, performs at least two key functions. It blocks inhibition of viral-gene expression by interferon, a function dependent on the degradation of the ND10 components PML and SP100 by the ubiquitin ligase expressed by the RING finger (RF), and it blocks sil...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01940-08

    authors: Gu H,Roizman B

    更新日期:2009-01-01 00:00:00

  • Nonpathogenesis of simian immunodeficiency virus infection is associated with reduced inflammation and recruitment of plasmacytoid dendritic cells to lymph nodes, not to lack of an interferon type I response, during the acute phase.

    abstract::Divergent Toll-like receptor 7 (TLR7) and TLR9 signaling has been proposed to distinguish pathogenic from nonpathogenic simian immunodeficiency virus infection in primate models. We demonstrate here that increased expression of type I interferon in pathogenic rhesus macaques compared to nonpathogenic African green mon...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01496-09

    authors: Campillo-Gimenez L,Laforge M,Fay M,Brussel A,Cumont MC,Monceaux V,Diop O,Lévy Y,Hurtrel B,Zaunders J,Corbeil J,Elbim C,Estaquier J

    更新日期:2010-02-01 00:00:00

  • Characterization of an extremely basic protein derived from granulosis virus nucleocapsids.

    abstract::Nucleocapsids were isolated from purified enveloped nucleocapsids of Plodia interpunctella granulosis virus by treatment with Nonidet P-40. When analyzed on sodium dodecyl sulfate-polyacrylamide gels, the nucleocapsids consisted of eight polypeptides. One of these, a major component with a molecular weight of 12,500 (...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.33.2.866-876.1980

    authors: Tweeten KA,Bulla LA,Consigli RA

    更新日期:1980-02-01 00:00:00

  • The topology of hepatitis B virus pregenomic RNA promotes its replication.

    abstract::Previous analysis of hepatitis B virus (HBV) indicated base pairing between two cis-acting sequences, the 5' half of the upper stem of epsilon and phi, contributes to the synthesis of minus-strand DNA. Our goal was to identify other cis-acting sequences on the pregenomic RNA (pgRNA) involved in the synthesis of minus-...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01414-07

    authors: Abraham TM,Loeb DD

    更新日期:2007-11-01 00:00:00

  • Replication-defective bovine adenovirus type 3 as an expression vector.

    abstract::Although recombinant human adenovirus (HAV)-based vectors offer several advantages for somatic gene therapy and vaccination over other viral vectors, it would be desirable to develop alternative vectors with prolonged expression and decreased toxicity. Toward this objective, a replication-defective bovine adenovirus t...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.11.9137-9144.1999

    authors: Reddy PS,Idamakanti N,Chen Y,Whale T,Babiuk LA,Mehtali M,Tikoo SK

    更新日期:1999-11-01 00:00:00

  • Characterization of the molecular mechanism of defective interfering RNA-mediated symptom attenuation in tombusvirus-infected plants.

    abstract::Different tombusviruses were able to support the replication of either homologous or heterologous defective interfering (DI) RNAs, and those infected plants usually developed typical attenuated symptoms. However, in some helper virus-DI RNA combinations the inoculated plants were necrotized, although they contained a ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.7.6251-6256.1998

    authors: Havelda Z,Szittya G,Burgyán J

    更新日期:1998-07-01 00:00:00

  • Emergence of CD4 independence envelopes and astrocyte infection in R5 simian-human immunodeficiency virus model of encephalitis.

    abstract:UNLABELLED:Human immunodeficiency virus type 1 (HIV-1) infection in the central nervous system (CNS) is characterized by replication in macrophages or brain microglia that express low levels of the CD4 receptor and is the cause of HIV-associated dementia and related cognitive and motor disorders that affect 20 to 30% o...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01237-14

    authors: Zhuang K,Leda AR,Tsai L,Knight H,Harbison C,Gettie A,Blanchard J,Westmoreland S,Cheng-Mayer C

    更新日期:2014-08-01 00:00:00

  • An exploratory trial of cyclooxygenase type 2 inhibitor in HIV-1 infection: downregulated immune activation and improved T cell-dependent vaccine responses.

    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

    authors: Pettersen FO,Torheim EA,Dahm AE,Aaberge IS,Lind A,Holm M,Aandahl EM,Sandset PM,Taskén K,Kvale D

    更新日期:2011-07-01 00:00:00

  • Susceptibility of AKXD recombinant inbred mouse strains to lymphomas.

    abstract::We analyzed the susceptibility of 10 AKXD recombinant inbred (RI) mouse strains to lymphomas. These strains were derived from crosses of AKR/J, a highly lymphomatous strain, and DBA/2J, a weakly lymphomatous strain. Of the 10 strains analyzed, nine showed a high incidence of lymphoma development. As with the other 13 ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.67.4.2083-2090.1993

    authors: Gilbert DJ,Neumann PE,Taylor BA,Jenkins NA,Copeland NG

    更新日期:1993-04-01 00:00:00

  • Morphology and physical properties of Staphylococcus bacteriophage P11-M15.

    abstract::The Group B Staphylococcus phage P11-M15 is shown to be 51% protein and 49% deoxyribonucleic acid (DNA). The intact virion has a molecular weight of 66.7 x 10(6) daltons. The purified viral DNA has a molecular weight of 32.7 x 10(6) daltons. The intact virion is shown to be composed of a polyhedral head which is attac...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.9.4.664-671.1972

    authors: Brown DT,Brown NC,Burlingham BT

    更新日期:1972-04-01 00:00:00

  • N protein alone satisfies the requirement for protein synthesis during RNA replication of vesicular stomatitis virus.

    abstract::Genomic replication of the negative-strand RNA viruses is dependent upon protein synthesis. To examine the requirement for protein synthesis in replication, we developed an in vitro system that supports the genome replication of defective interfering particles of the negative-strand rhabdovirus vesicular stomatitis vi...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.49.2.303-309.1984

    authors: Patton JT,Davis NL,Wertz GW

    更新日期:1984-02-01 00:00:00

  • Rapid viral decay in simian immunodeficiency virus-infected macaques receiving quadruple antiretroviral therapy.

    abstract::The viral dynamics in human immunodeficiency virus type 1 (HIV-1) infection have been studied extensively using mathematical modeling, but data from other primate lentivirus systems are scarce. This study was initiated to increase the understanding of the differences and similarities between the different primate lent...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00394-06

    authors: Brandin E,Thorstensson R,Bonhoeffer S,Albert J

    更新日期:2006-10-01 00:00:00

  • Altered gag polyprotein cleavage specificity of feline immunodeficiency virus/human immunodeficiency virus mutant proteases as demonstrated in a cell-based expression system.

    abstract::We have used feline immunodeficiency virus (FIV) protease (PR) as a mutational system to study the molecular basis of substrate-inhibitor specificity for lentivirus PRs, with a focus on human immunodeficiency virus type 1 (HIV-1) PR. Our previous mutagenesis studies demonstrated that discrete substitutions in the acti...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00374-06

    authors: Lin YC,Brik A,de Parseval A,Tam K,Torbett BE,Wong CH,Elder JH

    更新日期:2006-08-01 00:00:00

  • Recombinant adeno-associated virus utilizes cell-specific infectious entry mechanisms.

    abstract:UNLABELLED:Understanding the entry and trafficking mechanism(s) of recombinant adeno-associated virus (rAAV) into host cells can lead to evolution in capsid and vector design and delivery methods, resulting in enhanced transduction and therapeutic gene expression. Variability of findings regarding the early entry pathw...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01971-14

    authors: Weinberg MS,Nicolson S,Bhatt AP,McLendon M,Li C,Samulski RJ

    更新日期:2014-11-01 00:00:00

  • Microevolution of Dengue viruses circulating among primary school children in Kamphaeng Phet, Thailand.

    abstract::To determine the extent and structure of genetic variation in dengue viruses (DENV) on a restricted spatial and temporal scale, we sequenced the E (envelope) genes of DENV-1, -2, and -3 isolates collected in 2001 from children enrolled in a prospective school-based study in Kamphaeng Phet, Thailand, and diagnosed with...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02728-07

    authors: Jarman RG,Holmes EC,Rodpradit P,Klungthong C,Gibbons RV,Nisalak A,Rothman AL,Libraty DH,Ennis FA,Mammen MP Jr,Endy TP

    更新日期:2008-06-01 00:00:00

  • Electron microscopy of vesicular stomatitis virus replicative ribonucleoproteins.

    abstract::The objective of this investigation was to examine by electron microscopy the replicative ribonucleoprotein (RNP) structures synthesized in vesicular stomatitis virus-infected HeLa cells. Pulse-labeled in vivo products of vesicular stomatitis virus replication and transcription can be separated by centrifugation in Re...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.34.3.764-771.1980

    authors: Naeve CW,Summers DF

    更新日期:1980-06-01 00:00:00