Conformational changes induced in the envelope glycoproteins of the human and simian immunodeficiency viruses by soluble receptor binding.

abstract：:The interaction of simian virus 40 (SV40) T antigen (T-ag) with the viral origin has served as a model for studies of site-specific recognition of a eukaryotic replication origin and the mechanism of DNA unwinding. These studies have revealed that a motif termed the "beta-hairpin" is necessary for assembly of T-ag on ...

journal_title：Journal of virology

authors： Kumar A,Meinke G,Reese DK,Moine S,Phelan PJ,Fradet-Turcotte A,Archambault J,Bohm A,Bullock PA

更新日期：2007-05-01 00:00:00

abstract：:We have previously described a nonconditional mutant of avian sarcoma virus (SE21Q1b) which fails to package viral RNA (Gallis et al., Virology 94:146-161, 1979; Linial et al., Cell 15:1371-1381, 1978). Quail cells transformed by SE21Q1b contain normal amounts of intracellular viral mRNA's for src, env, and gag-pol an...

journal_title：Journal of virology

authors： Shank PR,Linial M

更新日期：1980-11-01 00:00:00

abstract：:A characterization of the antigenic determinants (epitopes) of the glycoprotein (G) of infectious hematopoietic necrosis virus was made by expressing different regions of the G gene in Escherichia coli. A cDNA copy of the G gene was divided into four fragments by TaqI digestion, and the fragments were subcloned into p...

journal_title：Journal of virology

authors： Xu L,Mourich DV,Engelking HM,Ristow S,Arnzen J,Leong JC

更新日期：1991-03-01 00:00:00

abstract：:HIV-1 transmission occurs mainly through mucosal tissues. During mucosal transmission, HIV-1 preferentially infects α4β7+ gut-homing CCR7- CD4+ effector/effector memory T cells (TEM) and results in massive depletion of these cells and other subsets of TEM in gut-associated lymphoid tissues. However, besides being elim...

journal_title：Journal of virology

authors： Cheung KW,Wu T,Ho SF,Wong YC,Liu L,Wang H,Chen Z

更新日期：2018-03-28 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：:Severe complications of Zika virus (ZIKV) infection might be caused by inflammation, but how ZIKV induces proinflammatory cytokines is not understood. In this study, we show opposite regulatory effects of the ZIKV NS5 protein on interferon (IFN) signaling. Whereas ZIKV and its NS5 protein were potent suppressors of ty...

journal_title：Journal of virology

authors： Chaudhary V,Yuen KS,Chan JF,Chan CP,Wang PH,Cai JP,Zhang S,Liang M,Kok KH,Chan CP,Yuen KY,Jin DY

更新日期：2017-06-26 00:00:00

abstract：:Nonglucosylated T6 phage (T6gtam 16am30, hereafter called T6alpha gt-) were found to have two structural anomalies when compared with wild-type T6. The DNA of T6alpha gt- phage contains single-strand interruptions. These can be seen both during infection, in the pool of replicating DNA, and in DNA extracted from purif...

journal_title：Journal of virology

authors： Hewlett MJ,Mathews CK

更新日期：1975-04-01 00:00:00

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

authors： Madsen JM,Stoltzfus CM

更新日期：2005-08-01 00:00:00

abstract：:The binding of tail parts to the head of phage P22 is normally irreversible, but after adsorption to host cells sonication releases many of the tail parts intact. This release is dependent on the power of sonication, but is independent of the length of sonication from 2 to 32 s. This phenomenon has been used to show t...

journal_title：Journal of virology

authors： Ruddel M,Israel V

更新日期：1976-02-01 00:00:00

abstract：:A functional preinitiation transcription complex was formed by incubating vaccinia virus early transcription factor VETF and RAP94+ RNA polymerase with an early promoter template immobilized on paramagnetic particles. A preferred order of assembly, VETF followed by RNA polymerase, was demonstrated by stepwise addition...

journal_title：Journal of virology

authors： Baldick CJ Jr,Cassetti MC,Harris N,Moss B

更新日期：1994-09-01 00:00:00

abstract：:Polyoma virus particles were purified by equilibrium centrifugation in CsCl. Particles from three regions of the density gradient were examined for infectivity, for their ability to induce expanded pools of deoxyribonucleic acid (DNA) precursors, and for their ability to stimulate the synthesis of DNA. The most infect...

journal_title：Journal of virology

authors： Skoog L,Nordenskjöld BA,Lindberg U

更新日期：1970-07-01 00:00:00

abstract：:The dynamics of human immunodeficiency virus type 1 (HIV-1) transcription was analyzed in vitro and in vivo by using a specific molecular approach which allows accurate quantitation of the different classes of viral mRNAs. Unspliced (US) and multiply spliced (MS) HIV-1 transcripts were assayed by competitive reverse t...

journal_title：Journal of virology

authors： Bagnarelli P,Valenza A,Menzo S,Sampaolesi R,Varaldo PE,Butini L,Montroni M,Perno CF,Aquaro S,Mathez D,Leibowitch J,Balotta C,Clementi M

更新日期：1996-11-01 00:00:00

abstract：:The human cytomegalovirus (HCMV) major immediate-early (MIE) enhancer contains five functional cyclic AMP (cAMP) response elements (CRE). Because the CRE in their native context do not contribute appreciably to MIE enhancer/promoter activity in lytically infected human fibroblasts and NTera2 (NT2)-derived neurons, we ...

journal_title：Journal of virology

authors： Keller MJ,Wu AW,Andrews JI,McGonagill PW,Tibesar EE,Meier JL

更新日期：2007-06-01 00:00:00

abstract：:The Epstein-Barr virus (EBV)-induced membrane antigen (MA) was successfully solubilized from the membranes of viable EBV-infected Raji cells by treatment with papain (5 to 6 U per 1 X 10(7) to 2 X 10(7) cells). The loss of MA from viable cells was monitored by membrane immunofluorescence and antibody-dependent cellula...

journal_title：Journal of virology

authors： Pearson GR,Qualtiere LF

更新日期：1978-10-01 00:00:00

abstract：:The initial aim of this study was to combine attributes of adeno-associated virus (AAV) and adenovirus (Ad) gene therapy vectors to generate an Ad-AAV hybrid vector allowing efficient site-specific integration with Ad vectors. In executing our experimental strategy, we found that, in addition to the known incompatibil...

journal_title：Journal of virology

authors： Philpott NJ,Giraud-Wali C,Dupuis C,Gomos J,Hamilton H,Berns KI,Falck-Pedersen E

更新日期：2002-06-01 00:00:00

abstract：:The 2009 pandemic influenza virus (pdm/09) has been frequently introduced to pigs and has reassorted with other swine viruses. Recently, H3N2 reassortants with pdm/09-like internal genes were isolated in Guangxi and Hong Kong, China. Genetic and epidemiological analyses suggest that these viruses have circulated in sw...

journal_title：Journal of virology

authors： Fan X,Zhu H,Zhou B,Smith DK,Chen X,Lam TT,Poon LL,Peiris M,Guan Y

更新日期：2012-02-01 00:00:00

abstract：:To study the tissue specificity of mouse mammary tumor virus (MMTV) gene expression, we developed two series of transgenic mice, containing the MMTV proviral DNA of mammary (GR) and kidney (C3H-K) origin. The expression pattern in the MMTV(GR) transgenic mice is very similar to that observed in infected animals, e.g.,...

journal_title：Journal of virology

authors： Rollini P,Billotte J,Kolb E,Diggelmann H

更新日期：1992-07-01 00:00:00

abstract：:The Epstein-Barr virus (EBV) BamHI-A rightward transcripts (BARTs) are expressed in all EBV-associated tumors as well as in latently infected B cells in vivo and cultured B-cell lines. One of the BART family transcripts contains an open reading frame, RPMS1, that encodes a nuclear protein termed RPMS. Reverse transcri...

journal_title：Journal of virology

authors： Zhang J,Chen H,Weinmaster G,Hayward SD

更新日期：2001-03-01 00:00:00

abstract：:Viruses in the family Coronaviridae, within the order Nidovirales, are etiologic agents of a range of human and animal diseases, including both mild and severe respiratory diseases in humans. These viruses encode conserved replicase and structural proteins as well as more diverse accessory proteins, encoded in the 3' ...

journal_title：Journal of virology

authors： Goldstein SA,Thornbrough JM,Zhang R,Jha BK,Li Y,Elliott R,Quiroz-Figueroa K,Chen AI,Silverman RH,Weiss SR

更新日期：2017-02-14 00:00:00

abstract：:Human cytomegalovirus (HCMV) has been implicated as a potential cofactor in human immunodeficiency virus type 1 (HIV-1)-related disease. Previously, we reported that HCMV inhibits HIV-1 RNA and protein synthesis in cells productively infected with both viruses but, in transient assays, activates an HIV-1 long terminal...

journal_title：Journal of virology

authors： Koval V,Jault FM,Pal PG,Moreno TN,Aiken C,Trono D,Spector SA,Spector DH

更新日期：1995-03-01 00:00:00

abstract：:A panel of 28 insertion mutants of the human immunodeficiency virus type 1 (HIV-1) Gag precursor (Pr55Gag) was constructed by linker-insertion mutagenesis and expressed in recombinant baculovirus-infected insect cells. One set of 14 mutants carried the normal N-myristylation signal; the other set constituted their non...

journal_title：Journal of virology

authors： Chazal N,Carrière C,Gay B,Boulanger P

更新日期：1994-01-01 00:00:00

abstract：:Biological and genetic variability is a prominent feature of human immunodeficiency virus (HIV) strains, especially in tropism, syncytium formation, and replicative capacity. To determine whether there were variable host cell effects on HIV replication in monocytes, three different strains of low-passage-number monocy...

journal_title：Journal of virology

authors： Chang J,Naif HM,Li S,Sullivan JS,Randle CM,Cunningham AL

更新日期：1996-11-01 00:00:00

abstract：:We report the use of a HeLa whole cell extract (WCE) runoff transcription system for the study of cis- and trans-acting elements, participating in the regulation of transcription initiation from the P38 promoter of the parvovirus minute virus of mice (MVM). Our initial studies with HeLa WCE indicated that transcriptio...

journal_title：Journal of virology

authors： Krauskopf A,Resnekov O,Aloni Y

更新日期：1990-01-01 00:00:00

abstract：:Poliovirus has been studied as a live recombinant vaccine vector because of its attractive characteristics. The genetic instability, however, has hampered recombinant polioviruses (PVs) from being developed as an appropriate vaccine. A variety of different foreign inserts were cloned directly into our poliovirus Sabin...

journal_title：Journal of virology

authors： Lee SG,Kim DY,Hyun BH,Bae YS

更新日期：2002-02-01 00:00:00

abstract：:Cottontail rabbit papillomavirus induces strictly epithelial tumors in both cottontail and domestic rabbits. A high proportion of the initial benign papillomas progress within 8 to 14 months to invasive carcinomas. With the help of mRNA-specific riboprobes for E6, E7, E1, E2, L1 and L2, we investigated by in situ hybr...

journal_title：Journal of virology

authors： Zeltner R,Borenstein LA,Wettstein FO,Iftner T

更新日期：1994-06-01 00:00:00

abstract：:DNA replication intermediates of three plasmids containing all or part of a modified Epstein-Barr virus cis-acting plasmid maintenance region (oriP) were examined to further investigate oriP function. Replication intermediates were analyzed in vivo and in vitro by neutral-neutral two-dimensional gel electrophoresis. T...

journal_title：Journal of virology

authors： Platt TH,Tcherepanova IY,Schildkraut CL

更新日期：1993-03-01 00:00:00

abstract：:Reovirus encephalitis in mice was used as a model system to investigate astrocyte activation (astrogliosis) following viral infection of the brain. Reovirus infection resulted in astrogliosis, as evidenced by increased expression of glial fibrillary acidic protein (GFAP), and the upregulation of genes that have been p...

journal_title：Journal of virology

authors： Clarke P,Zhuang Y,Berens HM,Leser JS,Tyler KL

更新日期：2019-05-01 00:00:00

abstract：:Longitudinal studies of T cell immune responses during viral infections in humans are essential for our understanding of how effector T cell responses develop, clear infection, and provide long-lasting immunity. Here, following an outbreak of a Puumala hantavirus infection in the human population, we longitudinally an...

journal_title：Journal of virology

authors： Lindgren T,Ahlm C,Mohamed N,Evander M,Ljunggren HG,Björkström NK

更新日期：2011-10-01 00:00:00

abstract：:Luteoviruses avoid degradation in the hemolymph of their aphid vector by interacting with a GroEL homolog from the aphid's primary endosymbiotic bacterium (Buchnera sp.). Mutational analysis of GroEL from the primary endosymbiont of Myzus persicae (MpB GroEL) revealed that the amino acids mediating binding of Potato l...

journal_title：Journal of virology

authors： Hogenhout SA,van der Wilk F,Verbeek M,Goldbach RW,van den Heuvel JF

更新日期：2000-05-01 00:00:00

abstract：:Two major DNA variants have been isolated from serially propagated stocks of the WR strain of vaccinia virus. Restriction enzyme mapping of the two variants with HindIII, AvaI, XhoI, SstII, and SmaI revealed a 6.3-megadalton deletion in the smaller DNA variant. The deletion was mapped at ca. 6.8 megadaltons in from th...

journal_title：Journal of virology

authors： Panicali D,Davis SW,Mercer SR,Paoletti E

更新日期：1981-03-01 00:00:00