Viral cytopathogenicity correlated with integration of ubiquitin-coding sequences.

abstract：:A full-length cDNA clone of the U1 (common) strain of tobacco mosaic virus (TMV) was constructed, and highly infectious transcripts were produced in vitro using bacteriophage T7 RNA polymerase. Frameshift mutations designed to cause premature termination of translation were introduced into either the 30-kDa movement p...

journal_title：Virology

authors： Holt CA,Beachy RN

更新日期：1991-03-01 00:00:00

abstract：:Unusual Plum pox virus (PPV) isolates (named Tat isolates) were discovered on sour cherry (Prunus cerasus) in Russia. They failed to be recognized by RT-PCR using commonly employed primers specific to the strains C or CR (the only ones that proved able to infect sour cherry) as well as to the strains M and W. Some of ...

journal_title：Virology

authors： Chirkov S,Ivanov P,Sheveleva A,Zakubanskiy A,Osipov G

更新日期：2017-02-01 00:00:00

abstract：:Herpes simplex virus encodes proteins, such as DNA polymerase, that are essential for its replication and proteins, such as thymidine kinase, that are not essential for replication in cell culture, but are important for pathogenesis in animal models. However, certain mutations affecting these proteins exert little or ...

journal_title：Virology

authors： Jacobson J,Kramer M,Rozenberg F,Hu A,Coen DM

更新日期：1995-01-10 00:00:00

abstract：:Foot-and-mouth disease virus (FMDV) VP1 G-H loop contains the major antigenic site. By replacing the sequence upstream of the RGD motif with a FLAG epitope, a marker virus for pathogenesis studies was generated. In cell culture, the recombinant virus containing FLAG (A24-FLAG) exhibited similar plaque phenotypes and g...

journal_title：Virology

authors： Lawrence P,Pacheco JM,Uddowla S,Hollister J,Kotecha A,Fry E,Rieder E

更新日期：2013-02-05 00:00:00

abstract：:Cytotoxic T-cell clones raised against X-31 (H3N2) influenza virus in C57BL/6 mice can be directed against an influenza A virus subtype specific determinant (1). A representative T-cell clone (A3.1) has been used in combination with a set of genetically typed recombinant viruses, to show that the A/PR/8/34 nucleoprote...

journal_title：Virology

authors： Townsend AR,Skehel JJ,Taylor PM,Palese P

更新日期：1984-03-01 00:00:00

abstract：:Crosslinking reagents were used to interrupt the process of filamentous phage morphogenesis and investigate the orientation in which nascent virions are extruded through the host cell membrane. Infected bacteria with emerging phage particles were crosslinked with glutaraldehyde. Immunoferritin-labeling studies on thes...

journal_title：Virology

authors： Lopez J,Webster RE

更新日期：1983-05-01 00:00:00

abstract：:The anatomy of DNA synthesized by five HSV-1 mutants previously shown to accumulate predominantly empty capsids at the nonpermissive temperature (NPT) was analyzed with Bg/II restriction digestion. At the NPT, all five generated DNA lacking termini, indicating that in the absence of packaging, viral DNA is not process...

journal_title：Virology

authors： Sherman G,Bachenheimer SL

更新日期：1987-06-01 00:00:00

abstract：:The Autographa californica M nucleopolyhedrovirus (AcMNPV) viral fibroblast growth factor (vFGF) has functional parallels to cellular FGFs. Deletion of the AcMNPV vfgf has no obvious phenotype in cell culture but delays the time of insect death. Here, we determined vFGF production during virus infection. vFGF was dete...

journal_title：Virology

authors： Lehiy CJ,Martinez O,Passarelli AL

更新日期：2009-12-05 00:00:00

abstract：:The single-cell ELISPOT assay was used to determine the frequency and isotype commitment of virus-specific antibody-forming cells (AFC) at different anatomical locations following intranasal Sendai virus infection of C57BL/6 and 129/Sv mice. AFC responses in the mediastinal and cervical lymph nodes showed sharp increa...

journal_title：Virology

authors： Sangster M,Hyland L,Sealy R,Coleclough C

更新日期：1995-02-20 00:00:00

abstract：:We analyzed various mutants of tomato leaf curl virus-India to investigate the role of ORFs AV3, AV2, and coat protein (CP) in viral replication, movement, and symptom development. The results of these studies indicate that ORF AV3 does not encode a protein. Plants inoculated with infectious DNA which contained deleti...

journal_title：Virology

authors： Padidam M,Beachy RN,Fauquet CM

更新日期：1996-10-15 00:00:00

abstract：:Spontaneous proteolysis of influenza virus M1 protein during crystallisation has defined an N-terminal domain of amino acids 1--164. Full-length M1, the N-terminal domain, and the C-terminal part of M1 (residues 165--252) were produced in Escherichia coli. In vitro tests showed that only full-length M1 and its N-termi...

journal_title：Virology

authors： Baudin F,Petit I,Weissenhorn W,Ruigrok RW

更新日期：2001-03-01 00:00:00

abstract：:The Rta (R transactivator) protein plays an essential role in the Epstein-Barr viral (EBV) lytic cascade. Rta activates viral gene expression by several mechanisms including direct and indirect binding to target viral promoters, synergy with EBV ZEBRA protein, and stimulation of cellular signaling pathways. We previou...

journal_title：Virology

authors： Chen LW,Raghavan V,Chang PJ,Shedd D,Heston L,Delecluse HJ,Miller G

更新日期：2009-04-10 00:00:00

abstract：:Equine herpesvirus 1 (EHV-1) recombinants that carry either a deletion of glycoprotein M (gM) or express mutant forms of gM were constructed. The recombinants were derived from strain Kentucky A (KyA), which also lacks genes encoding gE and gI. Plaques on RK13 cells induced by the gM-negative KyA were reduced in size ...

journal_title：Virology

authors： Seyboldt C,Granzow H,Osterrieder N

更新日期：2000-12-20 00:00:00

abstract：:To define the number of rhinovirus serotypes, cross neutralization tests and characterization studies were completed on 25 candidate prototype rhinoviruses submitted to a third phase of a collaborative program. Based on the results, 11 distinct prototype strains were designated and the numbering system was extended to...

journal_title：Virology

authors： Hamparian VV,Colonno RJ,Cooney MK,Dick EC,Gwaltney JM Jr,Hughes JH,Jordan WS Jr,Kapikian AZ,Mogabgab WJ,Monto A

更新日期：1987-07-01 00:00:00

abstract：:Sulfation is a common post-translational modification of secreted and membrane proteins, with the sulfate attached to tyrosine residues or to glycan side-chains. I have shown that varicella-zoster virus (VZV) envelope glycoproteins gpI, gpII, and gpIII can be labeled with [35S]sulfate. The predominant VZV glycoprotein...

journal_title：Virology

authors： Edson CM

更新日期：1993-11-01 00:00:00

abstract：:The influenza RNA polymerase is known to catalyse three distinct copying activities: (i) transcription of minus-sense virion RNA (vRNA) into mRNA, (ii) transcription of vRNA into full-length complementary RNA (cRNA), and (iii) transcription of cRNA to vRNA. Ever since the discovery of the conserved 13 and 12 long sequ...

journal_title：Virology

authors： Seong BL,Brownlee GG

更新日期：1992-01-01 00:00:00

abstract：:The Epstein-Barr virus (EBV) BGLF4 gene product is the only protein kinase encoded by the virus genome. In order to elucidate its physiological roles in viral productive replication, we here established a BGLF4-knockout mutant and a revertant virus. While the levels of viral DNA replication of the deficient mutant wer...

journal_title：Virology

authors： Murata T,Isomura H,Yamashita Y,Toyama S,Sato Y,Nakayama S,Kudoh A,Iwahori S,Kanda T,Tsurumi T

更新日期：2009-06-20 00:00:00

abstract：:The Gardner (GA) and Snyder-Theilen (ST) isolates of feline sarcoma virus (FeSV) represent genetic recombinants between feline leukemia virus (FeLV) and transformation-specific sequences (v-fes gene) of cat cellular origin. A related transforming gene (v-fps), common to the Fujinami, PRC II, and UR 1 strains of avian ...

journal_title：Virology

authors： Groffen J,Heisterkamp N,Shibuya M,Hanafusa H,Stephenson JR

更新日期：1983-03-01 00:00:00

abstract：:The human hepatitis B Virus genome (HBV) contains a liver-specific enhancer upstream of the X ORF which has been studied in detail by several investigators. A second liver-specific enhancer element, designated here as enhancer II, has been relatively recently described in the HBV genome, which is located within the co...

journal_title：Virology

authors： López-Cabrera M,Letovsky J,Hu KQ,Siddiqui A

更新日期：1991-08-01 00:00:00

abstract：:Although many workers have investigated the maturation and processing of the flavivirus nonstructural glycoprotein NS1 in infected cells, these studies have provided little insight into a possible function for NS1. In this study we investigated the subcellular localization of NS1 both by immunofluorescence and cryo-im...

journal_title：Virology

authors： Mackenzie JM,Jones MK,Young PR

更新日期：1996-06-01 00:00:00

abstract：:Cauliflower mosaic virus (CaMV) uses a specialised translation mechanism to bypass the long leader sequence of the 35S RNA. The effect of the CaMV 35S RNA leader sequence on the expression of a downstream beta-glucuronidase (GUS) reporter gene was studied in transgenic tobacco plants. Enzymatic GUS assays of these tra...

journal_title：Virology

authors： Schärer-Hernández N,Hohn T

更新日期：1998-03-15 00:00:00

abstract：:In HIV-1 infection, plasma viral load (VL) has dual implications for pathogenesis and public health. Based on well-known patterns of HIV-1 evolution and immune escape, we hypothesized that VL is an evolving quantitative trait that depends heavily on duration of infection (DOI), demographic features, human leukocyte an...

journal_title：Virology

authors： Prentice HA,Price MA,Porter TR,Cormier E,Mugavero MJ,Kamali A,Karita E,Lakhi S,Sanders EJ,Anzala O,Amornkul PN,Allen S,Hunter E,Kaslow RA,Gilmour J,Tang J,IAVI Africa HIV Prevention Partnership.

更新日期：2014-01-20 00:00:00

abstract：:Rice tungro disease is caused by a complex of two viruses, Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV). To examine the RNAi-based defence response in rice during tungro disease, we characterized the virus-derived small RNAs and miRNAs by Deep Sequencing. We found that, while 21 nt/22 nt...

journal_title：Virology

authors： Zarreen F,Kumar G,Johnson AMA,Dasgupta I

更新日期：2018-10-01 00:00:00

abstract：:Long-term non-progressive HIV infection, characterized by low but detectable viral load and stable CD4 counts in the absence of antiviral therapy, is observed in about 5% of HIV-infected patients. Here we identified four therapy naïve individuals who are strongly seropositive for HIV-1 but who lack evidence of detecta...

journal_title：Virology

authors： Kloosterboer N,Groeneveld PH,Jansen CA,van der Vorst TJ,Koning F,Winkel CN,Duits AJ,Miedema F,van Baarle D,van Rij RP,Brinkman K,Schuitemaker H

更新日期：2005-08-15 00:00:00

abstract：:Lymphoid cell lines were derived from three avian leukosis virus (ALV)-induced lymphomas. These cell lines contained proviral DNA sequences integrated upstream from the c-myc proto-oncogene, expressed increased levels of c-myc RNA, and were tumorigenic in syngeneic animals. While cell surface immunoglobulin (IgM) was ...

journal_title：Virology

authors： Baba TW,Giroir BP,Humphries EH

更新日期：1985-07-15 00:00:00

abstract：:A series of CD8(+) T cell clones, specific for the IE1 epitope YPHFMPTNL, of the immediate-early protein 1 of the murine cytomegalovirus (MCMV) were generated in order to determine their protective activity against this infection and correlate their phenotypic markers with antiviral activity. We found that the adoptiv...

journal_title：Virology

authors： Fernandez JA,Zavala F,Tsuji M

更新日期：1999-03-01 00:00:00

abstract：:CD8 T cells are necessary for controlling tumors induced by mouse polyoma virus (PyV), but the effector mechanism(s) responsible have not been determined. We examined the PyV tumorigenicity in C57BL/6 mice mutated in Fas or carrying targeted disruptions in the perforin gene or in both TNF receptor type I and type II g...

journal_title：Virology

authors： Byers AM,Hadley A,Lukacher AE

更新日期：2007-02-20 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：:It has been suggested that, in addition to viral proteins, host proteins are involved in RNA virus replication. In this study the RNA helicase domain of the Tobacco mosaic virus (TMV) replicase proteins was used as bait in the yeast two-hybrid system to identify tobacco proteins with a putative role in TMV replication...

journal_title：Virology

authors： Abbink TE,Peart JR,Mos TN,Baulcombe DC,Bol JF,Linthorst HJ

更新日期：2002-04-10 00:00:00

abstract：:Many plant virus coat proteins have binding sites for divalent cations, particularly calcium. It has been speculated that the purpose of such sites is to ensure that plant viruses release their RNA only in the host cytoplasm which has a low calcium concentration. By comparison to tomato bushy stunt virus, two of the a...

journal_title：Virology

authors： Laakso MM,Heaton LA

更新日期：1993-12-01 00:00:00