Rapid adaptation of avian H7N9 virus in pigs.

abstract：:The Epstein-Barr virus (EBV) predominantly establishes a latent infection in B lymphocytes, and occasionally switches from the latent state to the lytic cycle. In this report, we identified and examined the role of a lytic gene, BRRF2. We first prepared an antibody against BRRF2 and identified the gene product as a vi...

journal_title：Virology

authors： Watanabe T,Tsuruoka M,Narita Y,Katsuya R,Goshima F,Kimura H,Murata T

更新日期：2015-10-01 00:00:00

abstract：:Poliovirus procapsids, isolated and partially purified from infected HeLa cells, were found to dissociate into 14 S pentamers following freezing at -20 degrees overnight. Unlike pentameric subunits isolated directly from virus-infected cells or those obtained by alkaline treatment of procapsids, the "freeze-dissociate...

journal_title：Virology

authors： Onodera S,Phillips BA

更新日期：1987-08-01 00:00:00

abstract：:The glycoprotein E (gE) of varicella zoster virus (VZV), encoded by ORF68, is the most abundant viral glycoprotein. In the current experiments, we demonstrated that ORF68 deletion was incompatible with recovery of infectious virus from VZV cosmids. Replacing ORF68 at a nonnative AvrII site in the genome restored infec...

journal_title：Virology

authors： Mo C,Lee J,Sommer M,Grose C,Arvin AM

更新日期：2002-12-20 00:00:00

abstract：:The function of a substantial percentage of the putative protein-coding open reading frames (ORFs) in viral genomes is unknown. As their sequence is not similar to that of proteins of known function, the function of these ORFs cannot be assigned on the basis of sequence similarity. Methods complement or in combination...

journal_title：Virology

authors： Han LY,Cai CZ,Ji ZL,Chen YZ

更新日期：2005-01-05 00:00:00

abstract：:This work investigated whether the Escherichia coli RNase III gene, rnc+, could complement vp1080, a mutant vaccinia virus that is deleted of its E3L gene. Like E3L, rnc+ codes for a dsRNA binding protein that contains an additional nucleolytic activity. Rnc genes were cloned into the eukaryotic expression vector pMTV...

journal_title：Virology

authors： Shors T,Jacobs BL

更新日期：1997-01-06 00:00:00

abstract：:Plasmid p12929 was shown to integrate into the chromosome of Corynebacterium glutamicum RM3 and BL15. The minimal integrating fragment was subsequently defined. The arms flanking the integrated plasmid (attL and attR) were identified, allowing for the determination of the attP and the attB attachment sites. The attB s...

journal_title：Virology

authors： Moreau S,Le Marrec C,Blanco C,Trautwetter A

更新日期：1999-03-01 00:00:00

abstract：:An insertion mutation in the pol gene of Moloney murine leukemia virus (M-MuLV) was found to render the virus temperature-sensitive for replication. A provirus containing a 12-bp insertion at the boundary between the reverse transcriptase (RT) and integrase (IN) domains induced the formation of mutant virions containi...

journal_title：Virology

authors： Tanese N,Roth M,Epstein H,Goff SP

更新日期：1989-06-01 00:00:00

abstract：:Viral loads were investigated in SIVmnd-1 chronically infected mandrills and the results were compared with those previously observed in other nonpathogenic natural SIV infections. Four naturally and 11 experimentally SIVmnd-1-infected mandrills from a semi-free-ranging colony were studied during the chronic phase of ...

journal_title：Virology

authors： Pandrea I,Onanga R,Kornfeld C,Rouquet P,Bourry O,Clifford S,Telfer PT,Abernethy K,White LT,Ngari P,Müller-Trutwin M,Roques P,Marx PA,Simon F,Apetrei C

更新日期：2003-12-05 00:00:00

abstract：:Rotavirus infection was studied in adult nude mice (BALB/c background), alpha beta or gamma delta and alpha beta/gamma delta T cell receptor (TCR) knockout (-/-) mice (C57BL/6 and C57BL/6 x 129 backgrounds), and SCID mice (C57BL/6 background). The gamma delta TCR -/- mice cleared infection just like control mice. All ...

journal_title：Virology

authors： Franco MA,Greenberg HB

更新日期：1997-11-24 00:00:00

abstract：:Hemagglutination is an established method but has not been used previously to determine the efficacy of virus binding to a specific cellular receptor. Here we have utilized CD46-expressing erythrocytes from a transgenic mouse to establish whether and to what extent the species B adenoviruses (Ads) as well as Ad37 and ...

journal_title：Virology

authors： Andersson EK,Mei YF,Wadell G

更新日期：2010-06-20 00:00:00

abstract：:We assess the genetic relationships between 49 HIV-1 group O strains from 24 and 25 patients living in Cameroon and France, respectively. Strains were sequenced in four genomic regions: gag (p24) and three env regions (C2-V3, gp41, and for 22 C2-gp41). In each of the genomic regions analyzed, the genetic diversity amo...

journal_title：Virology

authors： Roques P,Robertson DL,Souquière S,Damond F,Ayouba A,Farfara I,Depienne C,Nerrienet E,Dormont D,Brun-Vézinet F,Simon F,Mauclère P

更新日期：2002-10-25 00:00:00

abstract：:We examined the molecular epidemiology and evolution of Ross River (RR) virus in Australia and the Pacific Islands. Nucleotide sequences of the E2 and E3 genes of five RR virus strains revealed remarkable conservation between 1959 and 1989 with a maximum divergence of only 3.3%. Sequence data from a 505-base pair frag...

journal_title：Virology

authors： Sammels LM,Coelen RJ,Lindsay MD,Mackenzie JS

更新日期：1995-09-10 00:00:00

abstract：:Following an increase in detection of enterovirus 68 (EV68) in community surveillance of respiratory infections in The Netherlands in 2010, epidemiological and virological analyses were performed to investigate the possible public health impact of EV68 infections. We retrospectively tested specimens collected from acu...

journal_title：Virology

authors： Meijer A,van der Sanden S,Snijders BE,Jaramillo-Gutierrez G,Bont L,van der Ent CK,Overduin P,Jenny SL,Jusic E,van der Avoort HG,Smith GJ,Donker GA,Koopmans MP

更新日期：2012-02-05 00:00:00

abstract：:A human B-lymphoid cell line, designated TG8, which does not express detectable levels of the EBV (Epstein-Barr virus)-associated nuclear antigen (EBNA), yet carries an average of one to two plasmid copies of the P3HR-1 EBV genome has been identified. TG8 can be superinfected by B95-8 EBV, resulting in up to 60-70% of...

journal_title：Virology

authors： Reisman D,Sugden B

更新日期：1984-08-01 00:00:00

abstract：:African swine fever virus (ASFV) growth and plaque formation were inhibited by phosphonoacetic acid (PAA) concentrations of 200 micrograms/ml or more. One spontaneous mutant and two mutants isolated from mutagenized virus were resistant to PAA inhibition and showed practically normal viral DNA synthesis in the presenc...

journal_title：Virology

authors： Marques MI,Costa JV

更新日期：1995-12-01 00:00:00

abstract：:The helix-destabilizing properties of a single-stranded DNA-binding protein, LEF-3, of Bombyx mori nucleopolyhedrovirus (BmNPV) were studied. Partial duplexes of DNA containing single-stranded (ss) tails of different sizes and orientations were used as substrates for assay of the unwinding ability of LEF-3. Upon nonco...

journal_title：Virology

authors： Mikhailov VS

更新日期：2000-04-25 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 HSV-1 genome is composed of two unique regions (UL and US) flanked by inverted repeats. During the course of DNA replication the two unique regions UL and US invert relative to one another. In this report we present evidence that cleavage is not necessary for genomic inversion to occur. We isolated and characteriz...

journal_title：Virology

authors： Lamberti C,Weller SK

更新日期：1996-12-15 00:00:00

abstract：:Replication of the satellite RNA of tobacco ringspot virus (sTobRV RNA) has been postulated to require rolling circle transcription. The expected product of rolling circle transcription, multimeric sTobRV RNA, is known to undergo self-cleavage in vitro to release unit-length sTobRV RNA. A spontaneous, efficient, not e...

journal_title：Virology

authors： Van Tol H,Buzayan JM,Bruening G

更新日期：1991-01-01 00:00:00

abstract：:Replication of Tomato bushy stunt virus (TBSV) RNA takes place on the cytosolic membrane surface of peroxisomes in plants and in yeast, a model host. To identify the host proteins involved in assisting the peroxisomal localization of the tombusvirus p33 replication protein, we tested if p33 could bind directly to yeas...

journal_title：Virology

authors： Pathak KB,Sasvari Z,Nagy PD

更新日期：2008-09-30 00:00:00

abstract：:Human Adenovirus Type 4 (HAdV-4) is responsible for epidemic outbreaks of Acute Respiratory Disease (especially in military recruits), and is known to cause significant morbidity with several reported cases of mortality. However, we do not understand why this serotype causes such high morbidity, and have little insigh...

journal_title：Virology

authors： Hartman ZC,Appledorn DM,Serra D,Glass O,Mendelson TB,Clay TM,Amalfitano A

更新日期：2008-05-10 00:00:00

abstract：:The immunogenicity of capsomeres of human papillomavirus type 33 was evaluated in a dose-response analysis. Capsomeres were obtained free of capsids by expression of L1 carrying the single point mutation C427S. Neutralizing antibodies were detected using an in vitro pseudoinfection assay. Capsomeres induced type-speci...

journal_title：Virology

authors： Fligge C,Giroglou T,Streeck RE,Sapp M

更新日期：2001-05-10 00:00:00

abstract：:When effector CD4+ T cells carrying integrated HIV-1 proviruses revert back to a resting memory state, the virus can remain silent in those cells for years. Following re-exposure to the nominal antigen or in response to other stimuli (e.g. pro-inflammatory cytokines), these cells can begin to produce virus. Here we de...

journal_title：Virology

authors： Thibault S,Imbeault M,Tardif MR,Tremblay MJ

更新日期：2009-06-20 00:00:00

abstract：:Hematopoietic malignant cells of various types were isolated from ICFW mice inoculated as newborn or adult with F-MuLV and grafted into recipient mice. After repeated in vivo cell transplants, several recombinant polytropic viruses (also termed MCF or dualtropic viruses) were isolated from tumors by limiting dilution....

journal_title：Virology

authors： Della-Valle V,Wendling F,Sitbon M,Varlet P,Mathieu-Mahul D,Larsen CJ

更新日期：1990-10-01 00:00:00

abstract：:Hepatitis C virus (HCV) nonstructural protein 5B (NS5B) RNA-dependent RNA polymerase (RdRp) has acquired a unique beta-hairpin in the thumb subdomain which protrudes toward the active site. We report here that this beta-hairpin plays an important role in positioning the 3' terminus of the viral RNA genome for correct ...

journal_title：Virology

authors： Hong Z,Cameron CE,Walker MP,Castro C,Yao N,Lau JY,Zhong W

更新日期：2001-06-20 00:00:00

abstract：:Monoclonal antibody 1B4, previously shown to be protective in vivo and to cross-react with both virally encoded and normal host cell proteins, was used to screen a lambda gt11 cDNA derived from mRNA harvested from mouse embryo fibroblasts 24 hr after infection with murine cytomegalovirus (MCMV). A 700-bp cDNA was iden...

journal_title：Virology

authors： Dallas PB,Lyons PA,Hudson JB,Scalzo AA,Shellam GR

更新日期：1994-05-01 00:00:00

abstract：:The second smallest subgenomic messenger RNA, mRNA5, of the coronavirus infectious bronchitis virus includes in its "5' unique region" two separate open reading frames (5a and 5b), whose coding function has not so far been established, and thus it may represent a dicistronic messenger RNA. We report here that two poly...

journal_title：Virology

authors： Liu DX,Inglis SC

更新日期：1992-01-01 00:00:00

abstract：:Epstein-Barr virus (EBV) DNA polymerase mediates viral DNA replication during the lytic phase of the EB virus life cycle. In order to characterize its enzymatic activities EBV DNA polymerase was purified more than 1200-fold from chemically induced B95-8 cells. One polypeptide with molecular weight of 110,000 correspon...

journal_title：Virology

authors： Tsurumi T

更新日期：1991-05-01 00:00:00

abstract：:Productive infection by human immunodeficiency virus type I (HIV-1) in the central nervous system (CNS) involves mainly macrophages and microglial cells. A frequency of less than 10% of human astrocytes is estimated to be infectable with HIV-1. Nonetheless, this relatively low percentage of infected astrocytes, but as...

journal_title：Virology

authors： Fang J,Acheampong E,Dave R,Wang F,Mukhtar M,Pomerantz RJ

更新日期：2005-06-05 00:00:00

abstract：:Loading of most endogenous peptides on major histocompatibility complex class I molecules is conditional on their transport into the endoplasmic reticulum (ER) by the peptide transporter TAP. We describe an HSV-2/1 cross-reactive cytotoxic T-cell (CTL) epitope that is processed in a TAP1-independent manner in vivo fol...

journal_title：Virology

authors： Paliard X,Doe B,Selby MJ,Hartog K,Lee AY,Burke RL,Walker CM

更新日期：2001-03-30 00:00:00