Molecular characterization of human immunodeficiency virus (HIV)-1 and -2 in individuals from guinea-bissau with single or dual infections: predominance of a distinct HIV-1 subtype A/G recombinant in West Africa.

abstract：:Five revertants of a linker-scanning mutation adjacent to the stem-loop V attenuation determinant (X472) in the 5' noncoding region of poliovirus RNA were independently isolated from neuroblastoma cells and contained RNAs with seven nucleotide changes in the pyrimidine-rich region. Generation of the identical rare sec...

journal_title：Virology

authors： Stewart SR,Semler BL

更新日期：1999-11-25 00:00:00

abstract：:We demonstrate that the AL2 gene of Cabbage leaf curl virus (CaLCuV) activates the CP promoter in mesophyll and acts to derepress the promoter in vascular tissue, similar to that observed for Tomato golden mosaic virus (TGMV). Binding studies indicate that sequences mediating repression and activation of the TGMV and ...

journal_title：Virology

authors： Lacatus G,Sunter G

更新日期：2008-06-20 00:00:00

abstract：:Bipartite geminiviruses are small, plant-infecting viruses with genomes composed of circular, single-stranded DNA molecules, designated A and B. Although they are closely related genetically, individual bipartite geminiviruses frequently exhibit host-specific adaptation. Two such viruses are bean golden mosaic virus (...

journal_title：Virology

authors： Petty IT,Carter SC,Morra MR,Jeffrey JL,Olivey HE

更新日期：2000-11-25 00:00:00

abstract：:The yellow fever 17D virus is attenuated and used for human vaccination. Two of its substrains, 17D-204 and 17DD, are used for vaccine production. One of the remarkable properties of this vaccine is limited viral replication in the host but with significant dissemination of the viral mass, yielding a robust and long-l...

journal_title：Virology

authors： Marchevsky RS,Freire MS,Coutinho ES,Galler R

更新日期：2003-11-10 00:00:00

abstract：:A novel virus isolated from the feather follicles of cockatoos diagnosed as having psittacine beak and feather disease was characterized by electron microscopy, nucleic acid content, and polypeptide composition. Purified virions displayed an icosahedral symmetry, were nonenveloped, and had a mean diameter of 14 to 16 ...

journal_title：Virology

authors： Ritchie BW,Niagro FD,Lukert PD,Steffens WL 3rd,Latimer KS

更新日期：1989-07-01 00:00:00

abstract：:Although v-src, the oncogene of Rous sarcoma virus, has been shown to be capable of inducing lethal tumors at visceral sites distal to the primary tumor mass, the mechanisms opposing visceral tumor formation remain to be elucidated. In the present study, we show that visceral tumors, many of which represent a metastas...

journal_title：Virology

authors： Halpern MS,Wisner TW,Brown IP,England JM

更新日期：1993-11-01 00:00:00

abstract：:The mechanism of intracellular retention for the large surface protein (L) of duck hepatitis B virus (DHBV) was analyzed by examination of the transmembrane topologies and secretory properties of a collection of DHBV L mutants and compared with that of human hepatitis B virus (HBV) L. Our results demonstrate that, in ...

journal_title：Virology

authors： Gazina EV,Lin B,Gallina A,Milanesi G,Anderson DA

更新日期：1998-03-15 00:00:00

abstract：:HIV-1 infection leads to death of CD4(+) T cells in vivo and in vitro, although the mechanisms of this cell death are not well defined. We used flow cytometry to concurrently analyze infection and apoptosis of the CD4(+) CEM T cell line and human peripheral blood mononuclear cells (PBMC). Surprisingly, T cells product...

journal_title：Virology

authors： Rapaport E,Casella CR,Ikl,Mustafa F,Isaak D,Finkel TH

更新日期：1998-12-20 00:00:00

abstract：BACKGROUND:SARS-CoV-2 is a novel coronavirus and the cause of COVID-19. More than 80% of COVID-19 patients exhibit mild or moderate symptoms. In this study, we investigated the dynamics of viral load and antibodies against SARS-CoV-2 in a longitudinal cohort of COVID-19 patients with severe and mild/moderate diseases. ...

journal_title：Virology

authors： Li L,Liang Y,Hu F,Yan H,Li Y,Xie Z,Huang L,Zhao J,Wan Z,Wang H,Shui J,Cai W,Tang S

更新日期：2020-12-01 00:00:00

abstract：:The herpes simplex virus type 1 (HSV-1) latency associated transcript (LAT) gene's anti-apoptosis activity plays a central, but not fully elucidated, role in enhancing the virus's reactivation phenotype. In transient transfection experiments, LAT increases cell survival following an apoptotic insult in the absence of ...

journal_title：Virology

authors： Carpenter D,Hsiang C,Brown DJ,Jin L,Osorio N,BenMohamed L,Jones C,Wechsler SL

更新日期：2007-12-05 00:00:00

abstract：:Varicella zoster virus (VZV) is a neurotropic alphaherpesvirus that, following primary infection (varicella), establishes latency in sensory, autonomic, sympathetic and parasympathetic neurons, where it remains until reactivation (zoster). VZV-specific cell-mediated immune responses maintain VZV latency; thus, immunos...

journal_title：Virology

authors： Como CN,Pearce CM,Cohrs RJ,Baird NL

更新日期：2018-09-01 00:00:00

abstract：:The SARS-coronavirus (SARS-CoV) is the etiological agent of the severe acute respiratory syndrome (SARS). The SARS-CoV spike (S) glycoprotein mediates membrane fusion events during virus entry and virus-induced cell-to-cell fusion. The cytoplasmic portion of the S glycoprotein contains four cysteine-rich amino acid cl...

journal_title：Virology

authors： Petit CM,Chouljenko VN,Iyer A,Colgrove R,Farzan M,Knipe DM,Kousoulas KG

更新日期：2007-04-10 00:00:00

abstract：:RNA-binding proteins of coronavirus MHV-A59 were identified using an RNA overlay-protein blot assay (ROPBA). The major viral RNA-binding protein in virions and infected cells was the phosphorylated nucleocapsid protein N (50K). A new 140K virus structural protein was identified as a minor RNA-binding protein both in v...

journal_title：Virology

authors： Robbins SG,Frana MF,McGowan JJ,Boyle JF,Holmes KV

更新日期：1986-04-30 00:00:00

abstract：:The complete genomes of 30 Soybean mosaic virus (SMV) isolates and strains were sequenced in this study. Together with fourteen previously reported sequences, we analyzed the genetic structure of the SMV population. Analyses of genetic diversity showed that different genomic regions of SMV are under different evolutio...

journal_title：Virology

authors： Seo JK,Ohshima K,Lee HG,Son M,Choi HS,Lee SH,Sohn SH,Kim KH

更新日期：2009-10-10 00:00:00

abstract：:Commelina yellow mottle virus (CoYMV) is the type member of the badnaviruses, a genus of plant pararetroviruses. The N-terminus of the polyprotein encoded by ORF III has limited similarity to known cell-to-cell movement proteins. To test the hypothesis that the N-terminus is required for viral movement, the phenotypes...

journal_title：Virology

authors： Tzafrir I,Ayala-Navarrete L,Lockhart BE,Olszewski NE

更新日期：1997-06-09 00:00:00

abstract：:Studies were performed to induce cross-clade neutralizing antibodies (Abs) by testing various combinations of prime and boost constructs that focus the immune response on structurally-conserved epitopes in the V3 loop of HIV-1 gp120. Rabbits were immunized with gp120 DNA containing a V3 loop characterized by the GPGR ...

journal_title：Virology

authors： Zolla-Pazner S,Cohen S,Pinter A,Krachmarov C,Wrin T,Wang S,Lu S

更新日期：2009-09-15 00:00:00

abstract：:Selective inactivation of critical cysteine residues in human immunodeficiency virus type one (HIV-1) was observed after treatment with 4-vinylpyridine (4-VP), with and without the membrane-permeable metal chelator N,N,N',N'-tetrakis(2-pyridylmethyl)-ethylenediamine (TPEN). Chromatographic analysis showed that cystein...

journal_title：Virology

authors： Morcock DR,Thomas JA,Sowder RC 2nd,Henderson LE,Crise BJ,Gorelick RJ

更新日期：2008-05-25 00:00:00

abstract：:Hepatitis B virus large surface protein has the unusual property of accumulating in a particulate form within a preGolgi compartment, leading to marked proliferation of intracellular membranes. We show here that large surface protein activates the promoters for two lipogenic genes that code for farnesyl diphosphate sy...

journal_title：Virology

authors： Foo NC,Yen TS

更新日期：2000-04-10 00:00:00

abstract：:Many viruses, including human immunodeficiency virus type 1 (HIV-1), induce apoptosis and are affected by cellular expression of antiapoptotic genes. We sought to examine the effect of antiapoptotic gene expression on HIV replication by transfecting the promyelomonocytic cell line U937 with the bcl-xl gene to obtain c...

journal_title：Virology

authors： Marshall WL,Datta R,Hanify K,Teng E,Finberg RW

更新日期：1999-03-30 00:00:00

abstract：:A major 135-kDa DNA binding protein (mDBP) encoded by the BALF2 open reading frame of Epstein-Barr Virus (EBV) is known to be an essential protein for the induction of the lytic cycle. The present investigation was carried out to know whether this protein forms a complex in vivo with other viral DNA binding proteins (...

journal_title：Virology

authors： Zeng Y,Middeldorp J,Madjar JJ,Ooka T

更新日期：1997-12-22 00:00:00

abstract：:The effect of rev (art/trs) gene on the level of HIV-1 envelope (env) expression using recombinant adenovirus was investigated. Recombinant adenoviruses expressing either the envelope or the rev gene of the human immunodeficiency virus type 1 (HIV-1) were constructed by inserting the gene into an expression cassette. ...

journal_title：Virology

authors： Chanda PK,Natuk RJ,Mason BB,Bhat BM,Greenberg L,Dheer SK,Molnar-Kimber KL,Mizutani S,Lubeck MD,Davis AR

更新日期：1990-04-01 00:00:00

abstract：:Powassan virus (POWV, Flaviviridae: Flavivirus) is the sole North American member of the tick-borne encephalitis complex and consists of two distinct lineages that are maintained in ecologically discrete enzootic transmission cycles. The underlying genetic mechanisms that lead to niche partitioning in arboviruses are ...

journal_title：Virology

authors： Brackney DE,Brown IK,Nofchissey RA,Fitzpatrick KA,Ebel GD

更新日期：2010-07-05 00:00:00

abstract：:The 5' untranslated region (5'UTR) of coxsackievirus B3 (CVB3) RNA forms a highly ordered secondary structure that has been implicated in controlling initiation of viral translation by internal ribosomal entry. To test this hypothesis, synthetic bicistronic RNAs, with all or part of the 5'UTR in the intercistronic spa...

journal_title：Virology

authors： Yang D,Wilson JE,Anderson DR,Bohunek L,Cordeiro C,Kandolf R,McManus BM

更新日期：1997-02-03 00:00:00

abstract：:The efficacy of combining immunization with human immunodeficiency vitus type 1 (HIV-1) DNA and HIV-1 recombinant proteins to obtain protection from chimeric simian/human immunodeficiency virus (SHIV) was determined. Four cynomolgus monkeys received four gene-gun immunizations intraepidermally of plasmid DNA encoding ...

journal_title：Virology

authors： Putkonen P,Quesada-Rolander M,Leandersson AC,Schwartz S,Thorstensson R,Okuda K,Wahren B,Hinkula J

更新日期：1998-10-25 00:00:00

abstract：:Unlike cell lines transformed with Polyomaviruses, transformants derived by focus formation or colony formation in agarose medium after transfer into rat fibroblast cells (FR3T3 line) of Bovine Papilloma Type 1 (BPV1) DNA were consistently observed to grow poorly in suspension and to remain highly serum dependent for ...

journal_title：Virology

authors： Grisoni M,Meneguzzi G,de Lapeyrière O,Binétruy B,Rassoulzadegan M,Cuzin F

更新日期：1984-06-01 00:00:00

abstract：:Genetic variation in dengue 2 isolates from various geographic areas was examined by oligonucleotide fingerprinting of the 40 S genome RNA. Oligonucleotide maps of geographically isolated and epidemiologically unrelated viruses were very distinct. Direct comparison of the oligonucleotide map of the dengue 2 prototype ...

journal_title：Virology

authors： Trent DW,Grant JA,Rosen L,Monath TP

更新日期：1983-07-30 00:00:00

abstract：:The bacteriophage T4 e gene encodes lysozyme (e-lysozyme), which releases progeny phage after normal infection of Escherichia coli cells. A mutation in the spackle gene suppresses the defect in e-lysozyme (Emrich, 1968). The spackle gene was mapped between genes 41 and 61, but its precise location has not previously b...

journal_title：Virology

authors： Kai T,Ueno H,Otsuka Y,Morimoto W,Yonesaki T

更新日期：1999-08-01 00:00:00

abstract：:Sindbis virus (SINV) induces inflammatory and vasoactive responses that are associated with rash and arthritis in human infections. The mechanisms underlying infection-associated microvasculopathy are still unknown. We investigated whether endothelial cells infected by SINV are differentially responsive to bradykinin ...

journal_title：Virology

authors： Rust NM,Papa MP,Scovino AM,da Silva MM,Calzavara-Silva CE,Marques ET Jr,Peçanha LM,Scharfstein J,Arruda LB

更新日期：2012-01-05 00:00:00

abstract：:Methods currently used for HIV-1 viral load measurements are very sensitive, but cannot distinguish between infectious and noninfectious particles. Here we describe the development of a novel, sensitive, and highly reproducible method that allows rapid isolation and quantification of infectious particles from patient ...

journal_title：Virology

authors： Rusert P,Fischer M,Joos B,Leemann C,Kuster H,Flepp M,Bonhoeffer S,Günthard HF,Trkola A

更新日期：2004-08-15 00:00:00

abstract：:Old world hantaviruses, causing hemorrhagic fever with renal syndrome (HFRS), still present a public health problem in Asia and Eastern Europe. The majority of cases has been recorded in China. The aim of our study was to generate human recombinant neutralizing antibodies to a hantavirus by phage display technology. T...

journal_title：Virology

authors： Koch J,Liang M,Queitsch I,Kraus AA,Bautz EK

更新日期：2003-03-30 00:00:00