Mutational analysis of hepatitis C virus nonstructural protein 5A: potential role of differential phosphorylation in RNA replication and identification of a genetically flexible domain.

abstract：UNLABELLED:The HIV-1 envelope protein (Env) is heavily glycosylated, with approximately 50% of the Env molecular mass being contributed by N-glycans. HIV-1 Env N-glycans shield the protein backbone and have been shown to play key roles in determining Env structure, surface exposure, and, consequently, antigenicity, inf...

journal_title：Journal of virology

authors： Shen R,Raska M,Bimczok D,Novak J,Smith PD

更新日期：2014-12-01 00:00:00

abstract：:The NS5A protein of hepatitis C virus (HCV) plays an important but undefined role in viral RNA replication. NS5A has been proposed to be a three-domain protein, and the crystal structure of the well-conserved amino-terminal domain I has been determined. The remaining two domains of NS5A, designated domains II and III,...

journal_title：Journal of virology

authors： Tellinghuisen TL,Foss KL,Treadaway JC,Rice CM

更新日期：2008-02-01 00:00:00

abstract：:Since dendritic cells may play a key role in defense against influenza virus infection, we examined the effects of recombinant hemagglutinin (HA) proteins derived from mouse-adapted H1N1 (A/WSN/1933), swine-origin 2009 pandemic H1N1 (A/Texas/05/2009), and highly pathogenic avian influenza H5N1 (A/Thailand/KAN-1/2004) ...

journal_title：Journal of virology

authors： Liu WC,Lin SC,Yu YL,Chu CL,Wu SC

更新日期：2010-11-01 00:00:00

abstract：:RNA editing of the hepatitis delta virus (HDV) antigenome at the amber/W site by the host RNA adenosine deaminase ADAR1 is a critical step in the HDV replication cycle. Editing is required for production of the viral protein hepatitis delta antigen long form (HDAg-L), which is necessary for viral particle production b...

journal_title：Journal of virology

authors： Jayan GC,Casey JL

更新日期：2005-09-01 00:00:00

abstract：:Four virion activities of Newcastle disease virus (hemagglutinating, neuraminidase, hemolytic, and infectious activities) were examined before and after heat stress in low-salt buffer and physiological salt buffer (phosphate-buffered saline). The hemagglutinating and neuraminidase activities of the Australia-Victoria ...

journal_title：Journal of virology

authors： Peeples ME,Glickman RL,Bratt MA

更新日期：1983-01-01 00:00:00

abstract：:Human immunodeficiency virus type 1 (HIV-1) evokes a strong immune response, but the virus persists. Polymorphisms within known antigenic sites result in loss of immune recognition and can be positively selected. Amino acid variation outside known HLA class I restricted epitopes can also enable immune escape by interf...

journal_title：Journal of virology

authors： Zimbwa P,Milicic A,Frater J,Scriba TJ,Willis A,Goulder PJ,Pillay T,Gunthard H,Weber JN,Zhang HT,Phillips RE

更新日期：2007-02-01 00:00:00

abstract：:Sequencing and reversion analysis of murine hepatitis virus (MHV) temperature-sensitive (ts) viruses has identified putative ts mutations in the replicase nonstructural proteins (nsp's) of these coronaviruses. In this study, reverse transcriptase PCR sequencing of the RNA genome of an isolate of the MHV ts virus Alb t...

journal_title：Journal of virology

authors： Sparks JS,Donaldson EF,Lu X,Baric RS,Denison MR

更新日期：2008-06-01 00:00:00

abstract：:Hepatitis C virus (HCV) is an important human pathogen associated with chronic liver disease. Recently, based on a genotype 2a isolate, tissue culture systems supporting complete replication and infectious virus production have been developed. In this study, we used cell culture-produced infectious HCV to analyze the ...

journal_title：Journal of virology

authors： Tscherne DM,Jones CT,Evans MJ,Lindenbach BD,McKeating JA,Rice CM

更新日期：2006-02-01 00:00:00

abstract：:The V20 cultivar of Nicotiana tabacum was shown previously to exhibit a strain-specific restriction of long-distance movement of tobacco etch potyvirus (TEV). In V20, both TEV-HAT and TEV-Oxnard strains are capable of genome amplification and cell-to-cell movement, but only TEV-Oxnard is capable of systemic infection ...

journal_title：Journal of virology

authors： Schaad MC,Lellis AD,Carrington JC

更新日期：1997-11-01 00:00:00

abstract：:Vaccinia virus (VACV) stimulates long-term immunity against highly pathogenic orthopoxvirus infection of humans (smallpox) and mice (mousepox [ectromelia virus {ECTV}]) despite the lack of a natural host-pathogen relationship with either of these species. Previous research revealed that VACV is able to induce polyfunc...

journal_title：Journal of virology

authors： Hersperger AR,Siciliano NA,Eisenlohr LC

更新日期：2012-07-01 00:00:00

abstract：UNLABELLED:Intron-containing mRNAs are subject to restricted nuclear export in higher eukaryotes. Retroviral replication requires the nucleocytoplasmic transport of both spliced and unspliced RNA transcripts, and RNA export mechanisms of gammaretroviruses are poorly characterized. Here, we report the involvement of the...

journal_title：Journal of virology

authors： Sakuma T,Davila JI,Malcolm JA,Kocher JP,Tonne JM,Ikeda Y

更新日期：2014-04-01 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

authors： Petrovsky N,Larena M,Siddharthan V,Prow NA,Hall RA,Lobigs M,Morrey J

更新日期：2013-09-01 00:00:00

abstract：UNLABELLED:Tetherin (BST2, CD317, or HM1.24) is a host cellular restriction factor that prevents the release of enveloped viruses by mechanically linking virions to the plasma membrane. The precise arrangement of tetherin molecules at the plasma membrane site of HIV-1 assembly, budding, and restriction is not well unde...

journal_title：Journal of virology

authors： Strauss JD,Hammonds JE,Yi H,Ding L,Spearman P,Wright ER

更新日期：2015-11-18 00:00:00

abstract：:A major determinant of neurovirulence for the GDVII strain of Theiler's virus, a murine picornavirus, was mapped to the P1 capsid protein region. Chimeric viruses were constructed by using sequences from the 5' noncoding and P1 regions of the virulent GDVII strain to replace equivalent regions of the less virulent BeA...

journal_title：Journal of virology

authors： Pritchard AE,Jensen K,Lipton HL

更新日期：1993-07-01 00:00:00

abstract：:Autographa californica nuclear polyhedrosis virus late and very late mRNAs are transcribed by an RNA polymerase consisting of four virus-encoded polypeptides: LEF-8, LEF-9, LEF-4, and p47. The 464-amino-acid LEF-4 subunit contains the signature motifs of GTP:RNA guanylyltransferases (capping enzymes). Here, we show th...

journal_title：Journal of virology

authors： Gross CH,Shuman S

更新日期：1998-12-01 00:00:00

abstract：:The trans-activator Tat proteins coded by human immunodeficiency virus type 1 (HIV-1) and HIV-2 appear to be similar in structure and function. However, the Tat protein of HIV-2 (Tat2) activates the HIV-1 long terminal repeat (LTR) less efficiently than Tat1 (M. Emerman, M. Guyader, L. Montagnier, D. Baltimore, and M....

journal_title：Journal of virology

authors： Elangovan B,Subramanian T,Chinnadurai G

更新日期：1992-04-01 00:00:00

abstract：:Herpes simplex virus type 1 (HSV-1) infection results in the disruption of ND10 (also called nuclear bodies, PODs, or PML-associated bodies), which are nuclear matrix domains of unknown function present in mammalian cells. After ND10 disruption, viral transcription and DNA replication occur in globular nuclear domains...

journal_title：Journal of virology

authors： Burkham J,Coen DM,Weller SK

更新日期：1998-12-01 00:00:00

abstract：:The impact of antiretroviral therapy (ART) on the genetics of simian immunodeficiency virus (SIV) or human immunodeficiency virus (HIV) populations has been incompletely characterized. We analyzed SIV genetic variation before, during, and after ART in a macaque model. Six pigtail macaques were infected with an SIV/HIV...

journal_title：Journal of virology

authors： Kearney M,Spindler J,Shao W,Maldarelli F,Palmer S,Hu SL,Lifson JD,KewalRamani VN,Mellors JW,Coffin JM,Ambrose Z

更新日期：2011-01-01 00:00:00

abstract：:Some paramyxovirus V proteins induce STAT protein degradation, and the amino acids essential for this process in the human parainfluenza virus type 2 (hPIV2) V protein have been studied. Various recombinant hPIV2s and cell lines constitutively expressing various mutant V proteins were generated. We found that V protei...

journal_title：Journal of virology

authors： Nishio M,Tsurudome M,Ito M,Garcin D,Kolakofsky D,Ito Y

更新日期：2005-07-01 00:00:00

abstract：:The sensitivity of highly purified human fibroblast interferon and partially purified human leukocyte interferon to several proteolytic and glycolytic enzymes was determined with respect to antiviral activity, isoelectric point, molecular weight, and thermal stability. Leucine aminopeptidase altered the distribution o...

journal_title：Journal of virology

authors： Otto MJ,Sedmak JJ,Grossberg SE

更新日期：1980-08-01 00:00:00

abstract：:Cytotoxic T lymphocytes (CTLs) play an important role in the immune response against respiratory syncytial virus (RSV) infection. The cell surface molecule lymphocyte function-associated antigen 1 (LFA-1) is an important contributor to CTL activation, CTL-mediated direct cell lysis, and lymphocyte migration. In an att...

journal_title：Journal of virology

authors： Rutigliano JA,Johnson TR,Hollinger TN,Fischer JE,Aung S,Graham BS

更新日期：2004-03-01 00:00:00

abstract：:Vaccinia virus, a poxvirus, produces structurally distinct forms of virions for which the immediate events following cell entry are ill-defined. We provide evidence that intracellular mature virus (IMV) enters both permissive and nonpermissive T-cell lines and that introduction of CCR5 into nonpermissive mouse fibrobl...

journal_title：Journal of virology

authors： Rahbar R,Murooka TT,Hinek AA,Galligan CL,Sassano A,Yu C,Srivastava K,Platanias LC,Fish EN

更新日期：2006-07-01 00:00:00

abstract：UNLABELLED:Triggering the amoebal phagocytosis process is a sine qua non condition for most giant viruses to initiate their replication cycle and consequently to promote their progeny formation. It is well known that the amoebal phagocytosis process requires the recognition of particles of >500 nm, and most amoebal gia...

journal_title：Journal of virology

authors： Arantes TS,Rodrigues RA,Dos Santos Silva LK,Oliveira GP,de Souza HL,Khalil JY,de Oliveira DB,Torres AA,da Silva LL,Colson P,Kroon EG,da Fonseca FG,Bonjardim CA,La Scola B,Abrahão JS

更新日期：2016-05-12 00:00:00

abstract：:The structure of VRC01 in complex with the HIV-1 gp120 core reveals that this broadly neutralizing CD4 binding site (CD4bs) antibody partially mimics the interaction of the primary virus receptor, CD4, with gp120. Here, we extended the investigation of the VRC01-gp120 core interaction to the biologically relevant vira...

journal_title：Journal of virology

authors： Li Y,O'Dell S,Walker LM,Wu X,Guenaga J,Feng Y,Schmidt SD,McKee K,Louder MK,Ledgerwood JE,Graham BS,Haynes BF,Burton DR,Wyatt RT,Mascola JR

更新日期：2011-09-01 00:00:00

abstract：:Purified Kunjin virus was disrupted with sodium dodecyl sulfate, urea, and mercaptoethanol or acetic acid. Electrophoresis on 7.5% polyacrylamide gel separated four proteins of high (120,000), intermediate (65,000) and low (18,000 and 13,000) molecular weights. A "core" particle was obtained by degradation of the viri...

journal_title：Journal of virology

authors： Westaway EG,Reedman BM

更新日期：1969-11-01 00:00:00

abstract：:The filoviruses Ebola Zaire virus and Marburg virus are believed to infect target cells through endocytic vesicles, but the details of this pathway are unknown. We used a pseudotyping strategy to investigate the cell biology of filovirus entry. We observed that specific inhibitors of the caveola system, including chol...

journal_title：Journal of virology

authors： Empig CJ,Goldsmith MA

更新日期：2002-05-01 00:00:00

abstract：:The morphology and development of four members of the reticuloendotheliosis virus group were studied by transmission electron microscopy. Virions of duck spleen necrosis virus, duck infectious anemia virus, chicken syncytial virus, and reticuloendotheliosis virus strain T are sperical with a diameter of approximately ...

journal_title：Journal of virology

authors： Kang CY,Wong TC,Holmes KV

更新日期：1975-10-01 00:00:00

abstract：:Mycophenolic acid (MPA), an inhibitor of IMP dehydrogenase, inhibits reovirus replication and viral RNA and protein production. In mouse L929 cells, antiviral effects were greatest at 30 microg of MPA/ml. At this dosage, MPA inhibited replication of reovirus strain T3D more than 1,000-fold and inhibited replication of...

journal_title：Journal of virology

authors： Hermann LL,Coombs KM

更新日期：2004-06-01 00:00:00

abstract：:Engineered alphavirus vectors expressing reporters of infection have been used for a number of years due to their relatively low costs for analysis of virus replication and the capacity to utilize imaging systems for longitudinal measurements of growth within single animals. In general, these vectors have been derived...

journal_title：Journal of virology

authors： Sun C,Gardner CL,Watson AM,Ryman KD,Klimstra WB

更新日期：2014-02-01 00:00:00

abstract：:We previously reported that herpes simplex virus type 1 (HSV-1) can activate the stress-activated protein kinases (SAPKs) p38 and JNK. In the present study, we undertook a comprehensive and comparative analysis of the requirements for viral protein synthesis in the activation of JNK and p38. Infection with the UL36 mu...

journal_title：Journal of virology

authors： Hargett D,McLean T,Bachenheimer SL

更新日期：2005-07-01 00:00:00