RNA polymerase activity is associated with viral particles isolated from Leishmania braziliensis subsp. guyanensis.

abstract：:Rift Valley fever virus (RVFV), a phlebovirus of the Bunyaviridae family, is an arthropod-borne virus which emerges periodically throughout Africa, emphasizing that it poses a major threat for animal and human populations. To assess the genetic variability of RVFV, several isolates from diverse localities of Africa we...

journal_title：Journal of virology

authors： Sall AA,Zanotto PM,Sene OK,Zeller HG,Digoutte JP,Thiongane Y,Bouloy M

更新日期：1999-10-01 00:00:00

abstract：:The hepatitis A virus (HAV) internal ribosome entry segment (IRES) is unique among the picornavirus IRESs in that it is inactive in the presence of either the entero- and rhinovirus 2A or aphthovirus Lb proteinases. Since these proteinases both cleave eukaryotic initiation factor 4G (eIF4G) and HAV IRES activity could...

journal_title：Journal of virology

authors： Borman AM,Michel YM,Kean KM

更新日期：2001-09-01 00:00:00

abstract：:Four chimeric human immunodeficiency virus type 1 (HIV-1) env genes were constructed which encoded the extracellular domain of either the wild-type or a cleavage-defective HIV-1 envelope glycoprotein (gp160) fused at one of two different positions in env to a C-terminal glycosyl-phosphatidylinositol (GPI) attachment s...

journal_title：Journal of virology

authors： Salzwedel K,Johnston PB,Roberts SJ,Dubay JW,Hunter E

更新日期：1993-09-01 00:00:00

abstract：:Boid inclusion body disease (BIBD) is a transmissible viral disease of captive snakes that causes severe losses in snake collections worldwide. It is caused by reptarenavirus infection, which can persist over several years without overt signs but is generally associated with the eventual death of the affected snakes. ...

journal_title：Journal of virology

authors： Argenta FF,Hepojoki J,Smura T,Szirovicza L,Hammerschmitt ME,Driemeier D,Kipar A,Hetzel U

更新日期：2020-05-18 00:00:00

abstract：:Human metapneumovirus (hMPV) is a respiratory paramyxovirus of global clinical relevance. Despite the substantial knowledge generated during the last 10 years about hMPV infection, information regarding the activation of the immune response against this virus remains largely unknown. In this study, we demonstrated tha...

journal_title：Journal of virology

authors： Baños-Lara Mdel R,Ghosh A,Guerrero-Plata A

更新日期：2013-01-01 00:00:00

abstract：:The present study was designed to investigate the endocytic pathway involved in canine parvovirus (CPV) infection. Reduced temperature (18 degrees C) or the microtubule-depolymerizing drug nocodazole was found to inhibit productive infection of canine A72 cells by CPV and caused CPV to be retained in cytoplasmic vesic...

journal_title：Journal of virology

authors： Vihinen-Ranta M,Kalela A,Mäkinen P,Kakkola L,Marjomäki V,Vuento M

更新日期：1998-01-01 00:00:00

abstract：:Recognition of viruses by germ line-encoded pattern recognition receptors of the innate immune system is essential for rapid production of type I interferon (IFN) and early antiviral defense. We investigated the mechanisms of viral recognition governing production of type I IFN during herpes simplex virus (HSV) infect...

journal_title：Journal of virology

authors： Rasmussen SB,Sørensen LN,Malmgaard L,Ank N,Baines JD,Chen ZJ,Paludan SR

更新日期：2007-12-01 00:00:00

abstract：:H9N2 influenza viruses are panzootic in domestic poultry in Eurasia and since 1999 have caused transient infections in humans and pigs. To investigate the zoonotic potential of H9N2 viruses, we studied the evolution of the viruses in live-poultry markets in Hong Kong in 2003. H9N2 was the most prevalent influenza viru...

journal_title：Journal of virology

authors： Choi YK,Ozaki H,Webby RJ,Webster RG,Peiris JS,Poon L,Butt C,Leung YH,Guan Y

更新日期：2004-08-01 00:00:00

abstract：:Penetration of the nervous systems of suckling mice by prototype strains of the three mammalian reovirus serotypes was studied after footpad inoculation of a dose (10(7) PFU) representing 3.5 x 10(3) 50% lethal doses (LD50) for reovirus type 3 Dearing and less than 1 LD50 for reoviruses type 1 Lang and type 2 Jones. T...

journal_title：Journal of virology

authors： Flamand A,Gagner JP,Morrison LA,Fields BN

更新日期：1991-01-01 00:00:00

abstract：:The recent finding that the E1 glycoproteins of murine coronaviruses contain only O-linked oligosaccharides suggested that this unusual modification might be a distinguishing feature of coronaviruses and might play an essential role in the life cycle of this family of viruses. To examine these possibilities, we analyz...

journal_title：Journal of virology

authors： Stern DF,Sefton BM

更新日期：1982-12-01 00:00:00

abstract：:The Tax protein of human T-cell leukemia virus type 1 (HTLV-1) is a potent activator of viral transcription. Tax also activates the expression of specific cellular genes involved in the control of T-lymphocyte growth via effects on cellular transcription factors, including members of the NF-kappaB/cRel family. Immunoc...

journal_title：Journal of virology

authors： Bex F,McDowall A,Burny A,Gaynor R

更新日期：1997-05-01 00:00:00

abstract：:Hemagglutinin (HA) of influenza virus must be activated by proteolysis before the virus can become infectious. Previous studies indicated that HA cleavage is driven by membrane-bound or extracellular serine proteases in the respiratory tract. However, there is still uncertainty as to which proteases are critical for a...

journal_title：Journal of virology

authors： Magnen M,Gueugnon F,Guillon A,Baranek T,Thibault VC,Petit-Courty A,de Veer SJ,Harris J,Humbles AA,Si-Tahar M,Courty Y

更新日期：2017-07-27 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

authors： Nair P,Somasundaram K,Krishna S

更新日期：2003-06-01 00:00:00

abstract：:Prion diseases are progressive fatal neurodegenerative illnesses caused by the accumulation of transmissible abnormal prion protein (PrP). To find treatments for prion diseases, we searched for substances from natural resources that inhibit abnormal PrP formation in prion-infected cells. We found that high-molecular-w...

journal_title：Journal of virology

authors： Hamanaka T,Nishizawa K,Sakasegawa Y,Oguma A,Teruya K,Kurahashi H,Hara H,Sakaguchi S,Doh-Ura K

更新日期：2017-02-28 00:00:00

abstract：:Most retroviral packaging cell lines were established by a helper virus plasmid cotransfected with a separate plasmid encoding a selection marker. Since this selection marker coexisted in trans with the helper virus sequence, helper virus gene expression could be inactivated by host DNA methylation despite selection f...

journal_title：Journal of virology

authors： Young WB,Link CJ Jr

更新日期：2000-06-01 00:00:00

abstract：:Virion capture assays, in which immobilized antibodies (Abs) capture virus particles, have been used to suggest that nonneutralizing Abs bind effectively to human immunodeficiency virus type 1 (HIV-1) primary viruses. Here, we show that virion capture assays, under conditions commonly reported in the literature, give ...

journal_title：Journal of virology

authors： Poignard P,Moulard M,Golez E,Vivona V,Franti M,Venturini S,Wang M,Parren PW,Burton DR

更新日期：2003-01-01 00:00:00

abstract：UNLABELLED:The porcine sapovirus (SaV) (PoSaV) Cowden strain is one of only a few culturable enteric caliciviruses. Compared to the wild-type (WT) PoSaV Cowden strain, tissue culture-adapted (TC) PoSaV has two conserved amino acid substitutions in the RNA-dependent RNA polymerase (RdRp) and six in the capsid protein (V...

journal_title：Journal of virology

authors： Lu Z,Yokoyama M,Chen N,Oka T,Jung K,Chang KO,Annamalai T,Wang Q,Saif LJ

更新日期：2015-11-18 00:00:00

abstract：:The virion host shutoff protein (vhs) of herpes simplex virus (HSV) triggers global shutoff of host protein synthesis and accelerated mRNA turnover during virus infection and induces endoribonucleolytic cleavage of exogenous RNA substrates when it is produced in a rabbit reticulocyte (RRL) in vitro translation system....

journal_title：Journal of virology

authors： Lu P,Jones FE,Saffran HA,Smiley JR

更新日期：2001-02-01 00:00:00

abstract：UNLABELLED:Like most positive-strand RNA viruses, infection by plant tombusviruses results in extensive rearrangement of specific host cell organelle membranes that serve as the sites of viral replication. The tombusvirus Tomato bushy stunt virus (TBSV) replicates within spherules derived from the peroxisomal boundary ...

journal_title：Journal of virology

authors： Richardson LG,Clendening EA,Sheen H,Gidda SK,White KA,Mullen RT

更新日期：2014-06-01 00:00:00

abstract：:Two prion strains with identical incubation periods in mice exhibited distinct incubation periods and different neuropathological profiles upon serial transmission to transgenic mice expressing chimeric Syrian hamster/mouse (MH2M) prion protein (PrP) genes [Tg(MH2M) mice] and subsequent transmission to Syrian hamsters...

journal_title：Journal of virology

authors： Scott MR,Groth D,Tatzelt J,Torchia M,Tremblay P,DeArmond SJ,Prusiner SB

更新日期：1997-12-01 00:00:00

abstract：:Human immunodeficiency virus type 1 (HIV-1) infection of CD4-positive lymphocytes is accompanied by acute cytopathic effects, i.e., syncytium formation and single-cell lysis. Syncytium formation involves cell-cell fusion mediated by viral envelope glycoproteins on the surface of infected cells and by CD4 glycoproteins...

journal_title：Journal of virology

authors： Cao J,Park IW,Cooper A,Sodroski J

更新日期：1996-03-01 00:00:00

abstract：:Respiratory syncytial virus (RSV) is a major cause of severe lower respiratory tract disease in infants and the elderly, but no safe and effective RSV vaccine is yet available. For reasons that are not well understood, RSV is only weakly immunogenic, and reinfection occurs throughout life. This has complicated the sea...

journal_title：Journal of virology

authors： Martinez-Sobrido L,Gitiban N,Fernandez-Sesma A,Cros J,Mertz SE,Jewell NA,Hammond S,Flano E,Durbin RK,García-Sastre A,Durbin JE

更新日期：2006-02-01 00:00:00

abstract：:Hepatitis A virus (HAV) has previously been reported to bind to human red blood cells through interaction with glycophorin A. Residue K221 of VP1 and the surrounding VP3 residues are involved in such an interaction. This capsid region is specifically recognized by the monoclonal antibody H7C27. A monoclonal antibody-r...

journal_title：Journal of virology

authors： Costafreda MI,Ribes E,Franch A,Bosch A,Pintó RM

更新日期：2012-08-01 00:00:00

abstract：:The cottontail rabbit papillomavirus (CRPV) a and b subtypes display a conserved E8 open reading frame encoding a 50-amino-acid hydrophobic protein, with structural similarities to the E5 transmembrane oncoprotein of genital human PVs (HPVs). CRPV E8 has been reported to play a role in papilloma growth but not to be e...

journal_title：Journal of virology

authors： Nonnenmacher M,Salmon J,Jacob Y,Orth G,Breitburd F

更新日期：2006-05-01 00:00:00

abstract：:EBNA2 transcriptional activation and regulated EBNALP coactivation are critical for Epstein-Barr virus-infected primary B-lymphocyte growth transformation. EBNALP coactivation requires the EBNA2 acidic activation domain (E2AD); EBNALP can bind to E2AD. EBNALP has now been found to bind less well to EBNA2 amino acids 1...

journal_title：Journal of virology

authors： Peng CW,Zhao B,Kieff E

更新日期：2004-10-01 00:00:00

abstract：:Previous in vitro analyses have shown that the human immunodeficiency virus type 1 (HIV-1) integrase uses either manganese or magnesium to assemble as a stable complex on the donor substrate and to catalyze strand transfer. We now demonstrate that subsequent to assembly, catalysis of both 3' end processing and strand ...

journal_title：Journal of virology

authors： Hazuda DJ,Felock PJ,Hastings JC,Pramanik B,Wolfe AL

更新日期：1997-09-01 00:00:00

abstract：:The development of immunization strategies to protect against ocular infection with herpes simplex virus 1 (HSV-1) must address the issue of the effects of the strategy on the establishment of latency in the trigeminal ganglia (TG). It is the reactivation of this latent virus that can cause recurrent disease and corne...

journal_title：Journal of virology

authors： Matundan H,Mott KR,Ghiasi H

更新日期：2014-07-01 00:00:00

abstract：:Extracts from nodavirus-infected Drosophila cells contained detergent-labile 140S "young" particles much richer than mature virions in their content of protein alpha, a precursor of coat proteins beta and gamma. Incorporation studies in infected cells showed that most newly synthesized alpha protein was assembled into...

journal_title：Journal of virology

authors： Gallagher TM,Rueckert RR

更新日期：1988-09-01 00:00:00

abstract：:The degree of genetic heterogeneity of DNA virus populations in nature and its consequences for disease control are virtually unknown. The parvovirus minute virus of mice (MVMi) was used here to investigate (i) the frequency of antibody-escape mutants in populations of a DNA virus and (ii) the ability of a DNA virus t...

journal_title：Journal of virology

authors： López-Bueno A,Mateu MG,Almendral JM

更新日期：2003-02-01 00:00:00

abstract：:Virus-induced cell fusion of the fusion-from-without type was observed in SC-1 cells infected with Moloney murine leukemia virus when grown in NIH 3T3 cells. Replication-competent virus mutants with altered surface protein gp70 were examined. Fusion mutations were found in the proline-rich region of gp70. They acted o...

journal_title：Journal of virology

authors： Andersen KB

更新日期：1994-05-01 00:00:00