A new hepatitis B virus variant in a chronic carrier with multiple episodes of viral reactivation and acute hepatitis.

abstract：:Pseudorabies virus (PRV) China reference strain Ea is genetically closely related to newly emerged variants; however, there is limited information about PRV Ea. Here, we compared PRV Ea with new variant strains by growth kinetics, genome sequencing, and protein expression analysis. Growth analysis showed that strain E...

journal_title：Virology

authors： Wang X,Wu CX,Song XR,Chen HC,Liu ZF

更新日期：2017-06-01 00:00:00

abstract：:Hepatitis B virus synthesizes multiple spliced RNAs that can be reverse transcribed into viral DNA. We thoroughly characterized the contribution of spliced RNAs to DNA synthesis in transfected cultures of Huh7 and HepG2 cells. We found that up to 50% of DNA within intracellular capsids is derived from five spliced RNA...

journal_title：Virology

authors： Abraham TM,Lewellyn EB,Haines KM,Loeb DD

更新日期：2008-09-15 00:00:00

abstract：:Matrix protein M1 purified from influenza A and B viruses has been analyzed for its ability to specifically interact with cellular proteins by immune coprecipitation and by an in vitro binding assay on nitrocellulose on PVDF membranes. When M1 was mixed with lysates of uninfected cells there was selective binding of h...

journal_title：Virology

authors： Zhirnov OP,Klenk HD

更新日期：1997-09-01 00:00:00

abstract：:A method was devised which allows the easy detection of mutations within the ner gene of Mu DNA. This method is based upon the observation that a transcriptional gene A-galK fusion containing the complete ner gene and the cts62 allele does not express the galK gene in an Escherichia coli strain lacking functional inte...

journal_title：Virology

authors： König U,Kirschner P,Schumann W

更新日期：1988-05-01 00:00:00

abstract：:Mycophenolic acid (MPA), an inhibitor of inosine monophosphate dehydrogenase, shows strong anti-HIV activity in vitro in both human peripheral blood CD4+ lymphocytes and macrophages, as well as established human cell lines. MPA shows its greatest antiviral effects during the early stages of HIV infection. By limiting ...

journal_title：Virology

authors： Ichimura H,Levy JA

更新日期：1995-08-20 00:00:00

abstract：:To begin to map functional domains of the Sendai P-L RNA polymerase complex we wanted to characterize the P binding site on the Sendai L protein. Analysis of in vitro and in vivo P-L polymerase complex formation with carboxyl-truncations of the L protein showed that the N-terminal half of the protein was required. Sit...

journal_title：Virology

authors： Chandrika R,Horikami SM,Smallwood S,Moyer SA

更新日期：1995-11-10 00:00:00

abstract：:The promotion of membrane fusion by the paramyxovirus hemagglutinin-neuraminidase (HN) and fusion (F) proteins requires that they be derived from homologous viruses, suggesting the possibility that the promotion of fusion requires a virus-specific communication between the two glycoprotein spikes. We have evaluated th...

journal_title：Virology

authors： Deng R,Wang Z,Mirza AM,Iorio RM

更新日期：1995-06-01 00:00:00

abstract：:A plasmid-based transfection system capable of generating infectious porcine circovirus type 2 (PCV2) was established. This system was then used in mutagenesis studies to investigate the involvement of a "conserved" nonanucleotide (which constitutes a portion of the loop sequence) located at the origin of DNA replicat...

journal_title：Virology

authors： Cheung AK

更新日期：2004-06-20 00:00:00

abstract：:Avian myelocytomatosis virus MC29 inoculated into the wing web of 1-day-old Brown Leghorn chickens causes a high incidence of tumors, predominantly endotheliomas that are apparently induced directly by the action of the viral myc gene. Mutants of MC29, in which portions of the v-myc gene have been deleted and which ha...

journal_title：Virology

authors： Enrietto PJ,Hayman MJ,Ramsay GM,Wyke JA,Payne LN

更新日期：1983-01-15 00:00:00

abstract：:A collection of randomly generated temperature-sensitive (ts) vaccinia virus (strain IHD-W) mutants were reported by S. Dales et al., (1978, Virology, 84, 403-428) in 1978 and characterized by electron microscopy. We have performed further genetic analysis on the Dales collection of mutants to make the mutants more us...

journal_title：Virology

authors： Lackner CA,D'Costa SM,Buck C,Condit RC

更新日期：2003-01-20 00:00:00

abstract：:The genus Badnavirus is characterized by members that are genetically and serologically heterogeneous which presents challenges for their detection and characterization. The presence of integrated badnavirus-like sequences in some host species further complicates detection using PCR-based protocols. To address these c...

journal_title：Virology

authors： Sukal AC,Kidanemariam DB,Dale JL,Harding RM,James AP

更新日期：2019-03-01 00:00:00

abstract：:A non-plaque-forming vaccine strain of NDV (NDV-B1) interferes with the infection of cultured chick embryo cells by the virulent plaque-forming NDV-L strain. The level of interference increases when the concentration of interfering virus is increased or when the time between infection and superinfection is increased. ...

journal_title：Virology

authors： Bratt MA,Rubin H

更新日期：1967-12-01 00:00:00

abstract：:Programmed Death-1 (PD-1), a member of T cell costimulatory molecules is expressed in high levels on antigen specific T cells during chronic viral infection, whereas PD-1 expression in the context of HIV-1 infected CD4+ T cells is not known. Here we report that productively infected CD4+ T cells lose PD-1, whereas bys...

journal_title：Virology

authors： Venkatachari NJ,Buchanan WG,Ayyavoo V

更新日期：2008-06-20 00:00:00

abstract：:An Autographa californica nuclear polyhedrosis virus gene encoding an occlusion-derived virus (ODV) envelope protein of 56 kDa was identified and sequenced. Transcription initiates from a conserved baculovirus late motif (ATAAG) with transcripts detected from 16 through 72 hr p.i. The protein is detected in infected c...

journal_title：Virology

authors： Braunagel SC,Elton DM,Ma H,Summers MD

更新日期：1996-03-01 00:00:00

abstract：:Insertion of nucleotide sequences encoding "tags" that can be expressed in specific viral proteins during an infection is a useful strategy for purifying viral proteins and their functional complexes from infected cells and/or for visualizing the dynamics of their subcellular location over time. To identify regions in...

journal_title：Virology

authors： Teterina NL,Lauber C,Jensen KS,Levenson EA,Gorbalenya AE,Ehrenfeld E

更新日期：2011-01-05 00:00:00

abstract：:Twelve avian reovirus strain 176 proteins, 10 structural (lambda 1, lambda 2, lambda 3, mu 1, mu 2/mu 2C, sigma 1, sigma 2, sigma 3, and sigma 4), and 2 nonstructural (mu NS and sigma NS) were identified and characterized by electrophoretic analysis of purified virions and infected cell lysates. Three of the identifie...

journal_title：Virology

authors： Ni Y,Ramig RF,Kemp MC

更新日期：1993-03-01 00:00:00

abstract：:Human papillomavirus type 27 (HPV-27) and HPV-2c are isolates of the same virus as judged by genomic sequence identity. In a 400-bp stretch of the long control region and the E6 and L1 genes no changes were found between HPV-27 and HPV-2c whereas 55 changes were found between HPV-27 and HPV-2a. This justifies the elev...

journal_title：Virology

authors： Chan SY,Tan CH,Delius H,Bernard HU

更新日期：1994-06-01 00:00:00

abstract：:Disruption of the perforin gene results in primary immunodeficiency and an increased susceptibility to opportunistic pathogens. Perforin-deficient (PKO) mice fail to clear primary lymphocytic choriomeningitis virus (LCMV) Armstrong, resulting in persistent infection and functional exhaustion of virus-specific CD8+ T c...

journal_title：Virology

authors： Humphreys TD,Khanolkar A,Badovinac VP,Harty JT

更新日期：2008-01-20 00:00:00

abstract：:The nucleoprotein (NP) of the influenza A virus encapsidates the viral RNA and participates in the infectious life cycle of the virus. The aims of this study were to find the degree of conservation of NP among all virus subtypes and hosts and to identify conserved binding sites, which may be utilised as potential drug...

journal_title：Virology

authors： Kukol A,Hughes DJ

更新日期：2014-04-01 00:00:00

abstract：:Rotaviral RNA was detected in the stool sample of an asymptomatic fattening pig at a Slovenian pig farm. To characterize the rotavirus, RT-PCR was used, employing primers specific for the VP7, VP4 and NSP4 genes. Specific products were purified and the sequencing reaction was performed for the molecular analysis of am...

journal_title：Virology

authors： Steyer A,Poljsak-Prijatelj M,Barlic-Maganja D,Jamnikar U,Mijovski JZ,Marin J

更新日期：2007-03-15 00:00:00

abstract：:The HIV-1 accessory gene product Vpr can inhibit cell proliferation via cell cycle arrest at the G(2) phase, and it can induce apoptosis after G(2) arrest. We found recently that C81, a carboxy-terminally truncated form of Vpr, induced apoptosis via G(1) arrest but did not induce G(2) arrest of the cell cycle. Thus, i...

journal_title：Virology

authors： Nishizawa M,Kamata M,Mojin T,Nakai Y,Aida Y

更新日期：2000-10-10 00:00:00

abstract：:The role of bean common mosaic necrosis potyvirus (BCMNV) and lettuce mosaic potyvirus (LMV) proteins was investigated in terms of their capacity to function as viral movement proteins (MPs). Using Escherichia coli-expressed proteins and microinjection techniques, direct evidence was obtained that both the potyviral c...

journal_title：Virology

authors： Rojas MR,Zerbini FM,Allison RF,Gilbertson RL,Lucas WJ

更新日期：1997-10-27 00:00:00

abstract：:The 5'-terminal noncoding region sequences were determined for the genome RNAs of seven strains of St. Louis encephalitis virus (SLEV) and one strain of West Nile virus (WNV) using a single synthetic cDNA primer complementary to the 5'-terminus of the coding region of a strain of WNV RNA. The 5'-terminal sequences obt...

journal_title：Virology

authors： Brinton MA,Dispoto JH

更新日期：1988-02-01 00:00:00

abstract：:Coronaviruses have a marked tropism for epithelial cells. Entry and release of the porcine transmissible gastroenteritis virus (TGEV) is restricted to apical surfaces of polarized epithelial cells, as we have recently shown (J. W. A. Rossen, C. P. J. Bekker, W. F. Voorhout, G. J. A. M. Strous, A. van der Ende, and P. ...

journal_title：Virology

authors： Rossen JW,Voorhout WF,Horzinek MC,van der Ende A,Strous GJ,Rottier PJ

更新日期：1995-06-20 00:00:00

abstract：:This study attempts to isolate and characterize West Nile virus-binding molecules on the plasma membrane of Vero and murine neuroblastoma cells that is responsible for virus entry. Pretreatment of Vero cells with proteases, glycosidases (endoglycosidase H, alpha-mannosidase), and sodium periodate strongly inhibited We...

journal_title：Virology

authors： Chu JJ,Ng ML

更新日期：2003-08-01 00:00:00

abstract：:Mutational analyses were carried out to investigate whether the nuclear inclusion protein a (NIa) C-terminal amino acids of turnip mosaic potyvirus play any roles in the cis-cleavage between NIa and NIb. The processing rate of the NIa-NIb junction sequence was decreased significantly by either V240D or Q243A mutation ...

journal_title：Virology

authors： Kim DH,Han JS,Lew J,Kim SS,Kang BH,Hwang DC,Jang DS,Kim W,Song BD,Choi KY

更新日期：1998-02-01 00:00:00

abstract：:The human T cell leukemia virus type I (HTLV-I) is an oncogenic retrovirus that is etiologically linked to the genesis of adult T cell leukemia (ATL) as well as HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Emerging evidence suggests that the pathogenicity of HTLV-I involves deregulated activati...

journal_title：Virology

authors： Harhaj EW,Harhaj NS,Grant C,Mostoller K,Alefantis T,Sun SC,Wigdahl B

更新日期：2005-03-01 00:00:00

abstract：:Temperate coliphage P2 integrates its genome into the host chromosome upon lysogenization via a site-specific recombination event mediated by an integrase belonging to the complex family of tyrosine recombinases. The host integration site attB (BOB') is localized in the end of the cyaR gene and shares 27 nucleotides w...

journal_title：Virology

authors： Sylwan L,Frumerie C,Haggård-Ljungquist E

更新日期：2010-09-01 00:00:00

abstract：:Flock house virus (FHV) is the best studied member of the Nodaviridae, a family of small, nonenveloped, isometric RNA viruses of insects and fish. Nodavirus genomes comprise two single-stranded positive-sense RNA segments (RNAs 1 and 2) that encode the viral RNA-dependent RNA polymerase (RdRp) and capsid protein precu...

journal_title：Virology

authors： Albariño CG,Price BD,Eckerle LD,Ball LA

更新日期：2001-10-25 00:00:00

abstract：:The effects of inhibitors, which interfere with oligosaccharide trimming by blocking mannosidases, on the processing and export of the viral glycoproteins of Rous sarcoma virus (RSV), have been studied. 1-Deoxymannojirimycin (DIM) prevents removal of mannose residues from the Man9 (GlcNAc)2 oligosaccharide whereas swa...

journal_title：Virology

authors： Bosch JV,Tlusty A,McDowell W,Legler G,Schwarz RT

更新日期：1985-05-01 00:00:00