An envelope modification that renders a primary, neutralization-resistant clade B human immunodeficiency virus type 1 isolate highly susceptible to neutralization by sera from other clades.

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：:Mechanisms by which the plus-sense RNA genomes of picornaviruses are replicated remain poorly defined, but existing models do not suggest a role for sequences encoding the capsid proteins. However, candidate RNA replicons (delta P1 beta gal and delta P1Luc), representing the sequence of human rhinovirus 14 virus (HRV-...

journal_title：Journal of virology

authors： McKnight KL,Lemon SM

更新日期：1996-03-01 00:00:00

abstract：:A uniform nomenclature has been agreed upon for monoclonal antibodies directed against virus-coded proteins of simian virus 40 and polyoma virus. Blocks of numbers from PAb1 to PAb999 have been allocated to workers involved in the isolation of monoclonal antibodies of this type. The correspondence between PAb numbers ...

journal_title：Journal of virology

authors： Crawford L,Harlow E

更新日期：1982-02-01 00:00:00

abstract：:Six nonoverlapping peptides of the neuraminidase (NA) glycoprotein of influenza virus A/Puerto Rico/8/34 (H1N1) (PR8 virus) were found to be immunogenic for proliferating T cells when injected into BALB/c mice in Freund adjuvant. T cells elicited by peptide immunization could recognize PR8 virus in vitro. However, onl...

journal_title：Journal of virology

authors： Hackett CJ,Horowitz D,Wysocka M,Eisenlohr LC

更新日期：1991-02-01 00:00:00

abstract：:The hepatitis B virus X protein (HBX) is essential for the establishment of HBV infection in vivo and exerts a pleiotropic effect on diverse cellular functions. The yeast two-hybrid system had indicated that HBX could interact with two subunits of the 26S proteasome. Here we demonstrate an association in vivo of HBX w...

journal_title：Journal of virology

authors： Hu Z,Zhang Z,Doo E,Coux O,Goldberg AL,Liang TJ

更新日期：1999-09-01 00:00:00

abstract：:A number of options are available to modify and improve DNA vaccines. An interesting approach to improve DNA vaccines is to fuse bioactive domains, like cytotoxic-T-lymphocyte-associated protein 4 (CTLA-4), to an antigen. Such fusion antigens are expressed in vivo and directed to immune cells by the specific bioactive...

journal_title：Journal of virology

authors： Lu M,Isogawa M,Xu Y,Hilken G

更新日期：2005-05-01 00:00:00

abstract：:Members of the Flaviviridae encode a serine proteinase termed NS3 that is responsible for processing at several sites in the viral polyproteins. In this report, we show that the NS3 proteinase of the pestivirus bovine viral diarrhea virus (BVDV) (NADL strain) is required for processing at nonstructural (NS) protein si...

journal_title：Journal of virology

authors： Xu J,Mendez E,Caron PR,Lin C,Murcko MA,Collett MS,Rice CM

更新日期：1997-07-01 00:00:00

abstract：:Gene mapping experiments show that Fis-1, a preferred integration region for Friend murine leukemia virus in hematopoietic neoplasms, is extremely closely linked to Int-2, a preferred integration region for mouse mammary tumor virus in mammary carcinomas. Studies at the RNA and DNA level prove that these loci are dist...

journal_title：Journal of virology

authors： Silver J,Buckler CE

更新日期：1986-12-01 00:00:00

abstract：:The internal structural proteins of retroviruses are proteolytically processed from the Gag polyprotein, which alone is able to assemble into virus-like particles when expressed in cells. All Gag proteins contain domains corresponding to the three structural proteins MA, CA, and NC. We have expressed the CA and NC dom...

journal_title：Journal of virology

authors： Campbell S,Vogt VM

更新日期：1995-10-01 00:00:00

abstract：:Hepatitis delta virus (HDV), a single-stranded RNA virus, bears a single coding region whose product, the hepatitis delta antigen (HDAg), is expressed in two isoforms, small (S-HDAg) and large (L-HDAg). S-HDAg is required for replication of HDV, while L-HDAg inhibits viral replication and is required for the envelopme...

journal_title：Journal of virology

authors： Bell P,Brazas R,Ganem D,Maul GG

更新日期：2000-06-01 00:00:00

abstract：:Treatment of cells with lectins specific for N-acetylglucosamine (GlcNAc) blocked infection by mouse cytomegalovirus (MCMV), and GlcNAc pretreatment of the lectin blocked this effect. MCMV failed to infect N-acetylglucosaminidase (GlcNAcase)-treated mouse embryo fibroblasts (MEF). GlcNAc and GlcNAc-containing syntheti...

journal_title：Journal of virology

authors： Ravindranath RM,Graves MC

更新日期：1990-11-01 00:00:00

abstract：:Viral particles purified from species of the protozoan parasite Leishmania braziliensis subsp. guyanensis by centrifugation in CsCl gradients were examined for the presence of viral polymerase. We demonstrated that RNA-dependent RNA polymerase is associated with viral particles. Viral transcription was studied in vitr...

journal_title：Journal of virology

authors： Widmer G,Keenan MC,Patterson JL

更新日期：1990-08-01 00:00:00

abstract：:Packaging of type C retrovirus genomic RNAs into budding virions requires a highly specific interaction between the viral Gag precursor and unique cis-acting packaging signals on the full-length RNA genome, allowing the selection of this RNA species from among a pool of spliced viral RNAs and similar cellular RNAs. Th...

journal_title：Journal of virology

authors： Harrison GP,Miele G,Hunter E,Lever AM

更新日期：1998-07-01 00:00:00

abstract：:Superinfection of Corynebacterium diphtheriae C7(beta) by heteroimmune phage gamma is productive, whereas superinfection by gamma-bin mutants is for the most part nonproductive. Exclusion of gamma-bin phage occurred after its DNA had penetrated and was partially expressed in the heteroimmune lysogen. All of the infect...

journal_title：Journal of virology

authors： Groman NB,Rabin M

更新日期：1980-11-01 00:00:00

abstract：:Cell fractionation and protein electrophoresis were used to study the intracellular sites of synthesis and intermediate structures in the assembly of the virion proteins of vesicular stomatitis virus. Each of the three major virion proteins assembled into virions through a separable pathway. The nucleocapsid (N) prote...

journal_title：Journal of virology

authors： Knipe DM,Baltimore D,Lodish HF

更新日期：1977-03-01 00:00:00

abstract：:HVEM (for herpesvirus entry mediator) is a member of the tumor necrosis factor receptor superfamily and mediates entry of many strains of herpes simplex virus (HSV) into normally nonpermissive Chinese hamster ovary (CHO) cells. We used sucrose density centrifugation to demonstrate that purified HSV-1 KOS virions bind ...

journal_title：Journal of virology

authors： Nicola AV,Ponce de Leon M,Xu R,Hou W,Whitbeck JC,Krummenacher C,Montgomery RI,Spear PG,Eisenberg RJ,Cohen GH

更新日期：1998-05-01 00:00:00

abstract：:The various strains of BK virus (BKV) exhibit a remarkable degree of heterogeneity in the transcriptional control region, which may affect the biological characteristics of a BKV strain. We describe the detection and sequencing of BKV control regions directly from urine samples and after propagation in cell culture. A...

journal_title：Journal of virology

authors： Sundsfjord A,Johansen T,Flaegstad T,Moens U,Villand P,Subramani S,Traavik T

更新日期：1990-08-01 00:00:00

abstract：:Drug susceptibility and mutations in the reverse transcriptase (RT) gene were analyzed with 167 virus isolates from 38 patients treated with nevirapine, a potent nonnucleoside inhibitor of human immunodeficiency virus type 1 (HIV-1) RT. Resistant isolates emerged quickly and uniformly in all patients administered nevi...

journal_title：Journal of virology

authors： Richman DD,Havlir D,Corbeil J,Looney D,Ignacio C,Spector SA,Sullivan J,Cheeseman S,Barringer K,Pauletti D

更新日期：1994-03-01 00:00:00

abstract：:The human cytomegalovirus UL4 gene encodes a 48-kDa glycoprotein, expression of which is repressed at the translational level by a short upstream open reading frame (uORF2) within the UL4 transcript leader. Mutation of the uORF2 initiation codon in the viral genome eliminates ribosomal stalling at the uORF2 terminatio...

journal_title：Journal of virology

authors： Alderete JP,Child SJ,Geballe AP

更新日期：2001-08-01 00:00:00

abstract：:The capsid mRNA transcripts of human bocavirus 1 (HBoV1) can be generated by alternative splicing from the mRNA precursor transcribed from the P5 promoter. However, the alternative translation regulation mechanism of capsid mRNA transcripts is largely unknown. Here we report that the polycistronic capsid mRNA transcri...

journal_title：Journal of virology

authors： Liu X,Hao S,Chen Z,Xu H,Wang H,Huang M,Guan W

更新日期：2018-10-12 00:00:00

abstract：:In vitro transcription by vesicular stomatitis virus nucleocapsids is inhibited by enzymatic dephosphorylation of the NS protein. We provide evidence that specific, partial dephosphorylation of NS molecules is the only detectable change in nucleocapsids treated with bacterial alkaline phosphatase under conditions that...

journal_title：Journal of virology

authors： Hsu CH,Morgan EM,Kingsbury DW

更新日期：1982-07-01 00:00:00

abstract：:Restriction factors are intrinsic cellular defense proteins that have evolved to block microbial infections. Retroviruses such as HIV-1 are restricted by TRIM5 proteins, which recognize the viral capsid shell that surrounds, organizes, and protects the viral genome. TRIM5α uses a SPRY domain to bind capsids with low i...

journal_title：Journal of virology

authors： Wagner JM,Christensen DE,Bhattacharya A,Dawidziak DM,Roganowicz MD,Wan Y,Pumroy RA,Demeler B,Ivanov DN,Ganser-Pornillos BK,Sundquist WI,Pornillos O

更新日期：2018-01-30 00:00:00

abstract：:Activation of microglia and astroglia is seen in many neurodegenerative diseases including prion diseases. Activated glial cells produce cytokines as a protective response against certain pathogens and as part of the host inflammatory response to brain damage. In addition, cytokines might also exacerbate tissue damage...

journal_title：Journal of virology

authors： Tribouillard-Tanvier D,Striebel JF,Peterson KE,Chesebro B

更新日期：2009-11-01 00:00:00

abstract：:The APOBEC3 (A3) enzymes, A3G and A3F, are coordinately expressed in CD4+ T cells and can become coencapsidated into HIV-1 virions, primarily in the absence of the viral infectivity factor (Vif). A3F and A3G are deoxycytidine deaminases that inhibit HIV-1 replication by inducing guanine-to-adenine hypermutation throug...

journal_title：Journal of virology

authors： Ara A,Love RP,Follack TB,Ahmed KA,Adolph MB,Chelico L

更新日期：2017-01-18 00:00:00

abstract：:The human polyomavirus JC virus (JCV) establishes persistent infections in most individuals and is the etiologic agent of progressive multifocal leukoencephalopathy. In this report, we describe the establishment of a soluble cell-free system that is capable of replicating exogenous plasmid DNA containing the JCV origi...

journal_title：Journal of virology

authors： Nesper J,Smith RW,Kautz AR,Sock E,Wegner M,Grummt F,Nasheuer HP

更新日期：1997-10-01 00:00:00

abstract：:Treatment with sodium dodecyl sulfate (SDS) converted the vaccinia virus strain IHD-J into particles of two types: (i) ghosts which possessed a thin-membrane vesicle derived from basement part of the virus membrane with attached lateral bodies and a membranous structure derived from the core wall and (ii) aggregates o...

journal_title：Journal of virology

authors： Ichihashi Y,Oie M,Tsuruhara T

更新日期：1984-06-01 00:00:00

abstract：:Sequences of the human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) domain were determined by direct sequencing of HIV-1 RNA in successive plasma samples from eight seroconverting patients infected with virus bearing the T215Y/F amino acid substitution associated with zidovudine (ZDV) resistance. A...

journal_title：Journal of virology

authors： Yerly S,Rakik A,De Loes SK,Hirschel B,Descamps D,Brun-Vézinet F,Perrin L

更新日期：1998-05-01 00:00:00

abstract：:The barley stripe mosaic virus (BSMV) beta(b) gene product is the major viral nonstructural protein synthesized during early stages of the infection cycle and is required for systemic movement of the virus. To examine the biochemical properties of beta(b), a histidine tag was engineered at the amino terminus and the p...

journal_title：Journal of virology

authors： Donald RG,Lawrence DM,Jackson AO

更新日期：1997-02-01 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

abstract：:Murine gammaherpesvirus 68 (MHV-68) glycoprotein B (gB) was identified in purified virions by immunoblotting, immunoprecipitation, and immunoelectron microscopy. It was synthesized as a 120-kDa precursor in infected cells and cleaved into 65-kDa and 55-kDa disulfide-linked subunits close to the time of virion release....

journal_title：Journal of virology

authors： Lopes FB,Colaco S,May JS,Stevenson PG

更新日期：2004-12-01 00:00:00