Begomovirus genetic diversity in the native plant reservoir Solanum nigrum: Evidence for the presence of a new virus species of recombinant nature.

abstract：:Human herpesvirus 6 (HHV-6) glycoprotein B (gB) is an abundantly expressed viral glycoprotein required for viral entry and cell fusion, and is highly conserved among herpesviruses. The present study examined the function of HHV-6 gB cytoplasmic tail domain (CTD). A gB CTD deletion mutant was constructed which, in cont...

journal_title：Virology

authors： Mahmoud NF,Jasirwan C,Kanemoto S,Wakata A,Wang B,Hata Y,Nagamata S,Kawabata A,Tang H,Mori Y

更新日期：2016-03-01 00:00:00

abstract：:The simian parainfluenza virus 5 (SV5) V/P gene encodes two proteins: V and the phosphoprotein P. The V and P proteins are amino coterminal for 164 residues, but they have unique carboxyl termini. The unique carboxyl terminus of V contains seven cysteine residues, resembles a zinc finger, and binds two atoms of zinc. ...

journal_title：Virology

authors： Lin GY,Paterson RG,Richardson CD,Lamb RA

更新日期：1998-09-15 00:00:00

abstract：:HIV-1 virus entry into target cells requires the envelope glycoprotein (Env) to first bind the primary receptor, CD4 and subsequently the co-receptor. Antibody access to the co-receptor binding site (CoRbs) in the pre-receptor-engaged state, prior to cell attachment, remains poorly understood. Here, we have demonstrat...

journal_title：Virology

authors： Boliar S,Patil S,Shukla BN,Ghobbeh A,Deshpande S,Chen W,Guenaga J,Dimitrov DS,Wyatt RT,Chakrabarti BK

更新日期：2018-06-01 00:00:00

abstract：:A mouse model system for a lethal encephalitis due to influenza has been established by stereotaxic microinjection with the recombinant R404BP strain of influenza A virus into the olfactory bulb of C57BL/6 mice. The virus infection spread selectively to neurons in nuclei of the broad areas of the brain parenchyma that...

journal_title：Virology

authors： Mori I,Liu B,Hossain MJ,Takakuwa H,Daikoku T,Nishiyama Y,Naiki H,Matsumoto K,Yokochi T,Kimura Y

更新日期：2002-11-25 00:00:00

abstract：:A novel human papillomavirus type (HPV) was cloned from an invasive cervical carcinoma. The viral clone showed no homology with other known prototypes of HPV (HPV-1 through HPV-57), except HPV-33 by Southern blot analysis under stringent conditions. It showed less than 20% homology to HPV-33 by reassociation kinetic a...

journal_title：Virology

authors： Matsukura T,Sugase M

更新日期：1990-08-01 00:00:00

abstract：:There is growing evidence that the receptor-binding characteristics of influenza viruses are affected by the host-dependent glycosylation of viral hemagglutinin (HA). To better understand these effects, we propagated two variants of the human influenza virus USSR/90/77 (which differed by the mutation Asn131 reversible...

journal_title：Virology

authors： Gambaryan AS,Marinina VP,Tuzikov AB,Bovin NV,Rudneva IA,Sinitsyn BV,Shilov AA,Matrosovich MN

更新日期：1998-08-01 00:00:00

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：:Binding of simian virus 40 (SV40) large T antigen to human and calf thymus topoisomerase I (topo I) was readily detected by using modified enzyme-linked immunosorbent assays and immunoblots. In addition to WT T antigen, binding could also be readily demonstrated with T antigen fragments from the amino-terminal region ...

journal_title：Virology

authors： Simmons DT,Melendy T,Usher D,Stillman B

更新日期：1996-08-15 00:00:00

abstract：:Prions were purified from scrapie-infected hamster brains and incubated for 24 hr at 65 degrees with 2 mM Zn2+ or 5 mM Mg2+; no loss of infectivity was observed. Bacteriophage M13, tobacco mosaic virus (TMV), potato virus X, and potato spindle tuber viroid were all inactivated by divalent metal ions under these condit...

journal_title：Virology

authors： Bellinger-Kawahara C,Diener TO,McKinley MP,Groth DF,Smith DR,Prusiner SB

更新日期：1987-09-01 00:00:00

abstract：:The cellular protein Cyclophilin A (Cyp A) is packaged into human immunodeficiency virus type 1 (HIV-1) particles through a specific interaction with the capsid domain of the Gag polyprotein. Inhibition of Cyp A incorporation by mutagenesis or cyclosporin treatment severely affects infectivity of all HIV-1 M subtypes ...

journal_title：Virology

authors： Wiegers K,Kräusslich HG

更新日期：2002-03-15 00:00:00

abstract：:Infection with the Tucson strain of coxsackievirus B1 (CVB1T) causes the development of chronic inflammatory myopathy (CIM) and hind limb weakness in susceptible strains of mice. In this study, a panel of six plaque-purified viruses exhibiting either small or large plaque phenotypes was derived from parental CVB1T and...

journal_title：Virology

authors： Tam PE,Messner RP

更新日期：1997-06-23 00:00:00

abstract：:The Tat regulatory protein encoded by human immunodeficiency virus type 1 (HIV-1) induces high levels of transcription from the viral long terminal repeat (LTR) promoter element after interacting with a promoter proximal RNA target sequence. In the wild-type HIV-1 LTR, this activation is facilitated by the synergistic...

journal_title：Virology

authors： Madore SJ,Cullen BR

更新日期：1995-02-01 00:00:00

abstract：:We describe the in vitro selection and characterisation of virus derived from B/Beijing/1/87 passaged in the presence of zanamivir. During zanamivir passage, the phenotype of virus isolates was either drug dependent or drug resistant in plaque reduction assays. The susceptibility of the neuraminidase of the drug-depen...

journal_title：Virology

authors： Barnett JM,Cadman A,Burrell FM,Madar SH,Lewis AP,Tisdale M,Bethell R

更新日期：1999-12-20 00:00:00

abstract：:Alphaherpesviruses comprise closely related viruses of man and animal, including herpes simplex virus, varicella-zoster virus and pseudorabies virus (PRV). Here, using methyl-beta-cyclodextrin and fluorescently tagged PRV, we directly show that depletion of cholesterol from the plasma membrane of host cells significan...

journal_title：Virology

authors： Desplanques AS,Nauwynck HJ,Vercauteren D,Geens T,Favoreel HW

更新日期：2008-07-05 00:00:00

abstract：:Mouse mammary tumor virus (MMTV) induces breast cancer in mice in the absence of known virally-encoded oncogenes. Tumorigenesis by MMTV is thought to occur primarily through insertional mutagenesis, leading to the activation of cellular proto-oncogenes and outgrowth of selected cells. Here we investigated whether MMTV...

journal_title：Virology

authors： Kincaid RP,Panicker NG,Lozano MM,Sullivan CS,Dudley JP,Mustafa F

更新日期：2018-01-01 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：:The HPV16 E7 oncoprotein and 17β-estradiol are important factors for the induction of premalignant lesions and cervical cancer. The study of these factors is crucial for a better understanding of cervical tumorigenesis. Here, we assessed the global gene expression profiles induced by the HPV16 E7 oncoprotein and/or 17...

journal_title：Virology

authors： Cortés-Malagón EM,Bonilla-Delgado J,Díaz-Chávez J,Hidalgo-Miranda A,Romero-Cordoba S,Uren A,Celik H,McCormick M,Munguía-Moreno JA,Ibarra-Sierra E,Escobar-Herrera J,Lambert PF,Mendoza-Villanueva D,Bermudez-Cruz RM,Gariglio P

更新日期：2013-12-01 00:00:00

abstract：:It was recently proposed that HIV RT mutations that decrease RNase H activity increase zidovudine (AZT) resistance by delaying the degradation of the RNA template, allowing more time for AZTMP excision from the 3' end of the viral DNA. This predicts that suboptimal concentrations of an RNase H Inhibitor (RNHI), which ...

journal_title：Virology

authors： Davis CA,Parniak MA,Hughes SH

更新日期：2011-10-25 00:00:00

abstract：:Nucleotide sequencing studies (D. J. McGeoch, A. Dolan, S. Donald, and F. Rixon, 1985, J. Mol. Biol. 181, 1-14) have indicated that herpes simplex virus type 1 (HSV-1) has a coding sequence, referred to as US7, between the genes for the glycoproteins D and E (gD and gE). Northern blot analysis and nucleotide sequencin...

journal_title：Virology

authors： Hodgman TC,Minson AC

更新日期：1986-08-01 00:00:00

abstract：:DI7 is a defective interfering RNA derived from RNA 2 of tobacco rattle tobravirus (TRV) isolate PpK20. Tobacco was transformed with DI7 cDNA fused to the CaMV 35S promoter. Upon infection of the transgenic plants with TRV isolate PpK20 or the serologically unrelated isolate PaY4, the transgenic DI7 RNA started to acc...

journal_title：Virology

authors： Visser PB,Brown DJ,Brederode FT,Bol JF

更新日期：1999-10-10 00:00:00

abstract：:The P1a protein of the ipomovirus Cucumber vein yellowing virus is one of the self-cleavage serine proteases present in Potyviridae family members. P1a is located at the N-terminal end of the viral polyprotein, and is closely related to potyviral P1 protease. For its proteolytic activity, P1a requires a still unknown ...

journal_title：Virology

authors： Shan H,Pasin F,Valli A,Castillo C,Rajulu C,Carbonell A,Simón-Mateo C,García JA,Rodamilans B

更新日期：2015-02-01 00:00:00

abstract：:Infection with Epstein-Barr virus (EBV) usually leads to a latent state in B lymphocytes. The virus can be reactivated through two viral transactivators, Zta and Rta, leading to a cascade of gene expression. An EBV DNA array was generated to analyze the pattern of transcription of the entire EBV genome under various c...

journal_title：Virology

authors： Lu CC,Jeng YY,Tsai CH,Liu MY,Yeh SW,Hsu TY,Chen MR

更新日期：2006-02-20 00:00:00

abstract：:It has previously been shown that a far-upstream region of the herpes simplex virus immediate early (IE) gene 3 increases the expression of a linked thymidine kinase (TK) gene and also contains sequences which respond to stimulation of transcription by a virion component. The effects of altering the orientation and di...

journal_title：Virology

authors： Preston CM,Tannahill D

更新日期：1984-09-01 00:00:00

abstract：:In HSV types 1 and 2, gH forms a noncovalent heterodimer with gL. Previous studies demonstrated that the first 323 amino acids of gH1 and the first 161 amino acids of gL1 are sufficient for gH/gL binding. For gL1, substitution of any of its four cysteine (C) residues (all located within the gH/gL binding region) destr...

journal_title：Virology

authors： Cairns TM,Landsburg DJ,Whitbeck JC,Eisenberg RJ,Cohen GH

更新日期：2005-02-20 00:00:00

abstract：:How the H7N9 avian influenza virus gained the distinct ability to infect humans is unclear. Pigs are an important host in influenza virus ecology because they are susceptible to infection with both avian and human influenza viruses and are often involved in interspecies transmission. Here, we passaged one avian isolat...

journal_title：Virology

authors： Xu L,Bao L,Deng W,Zhu H,Li F,Chen T,Lv Q,Yuan J,Xu Y,Li Y,Yao Y,Gu S,Yu P,Chen H,Qin C

更新日期：2014-03-01 00:00:00

abstract：:The results of a previous study suggested that the poly(A) sequence in barley stripe mosaic virus (BSMV) RNA is intercalated between a 3'-terminal tyrosine-accepting structure and the 5'-terminal coding part of the BSMV genome. Here we show that poly(A)+ and poly(A)- fractions of BSMV RNA can be cleaved into two fragm...

journal_title：Virology

authors： Agranovsky AA,Dolja VV,Atabekov JG

更新日期：1982-05-01 00:00:00

abstract：:Chikungunya virus (CHIKV) infection leads to activation of innate immune response by triggering Toll-like receptor (TLR) pathways resulting in elevated cytokines and type-I interferon levels. Genetic variations of these genes may influence human CHIKV-susceptibility and disease progression. Present study aimed to iden...

journal_title：Virology

authors： Dutta SK,Tripathi A

更新日期：2017-11-01 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：:Maturation of T4 can proceed in the presence of 5-methyltryptophan or puromycin. Puromycin inhibits phage protein synthesis within a few seconds, thus limiting the amount of phage precursor material available for maturation. After the arrest of protein synthesis, maturation continues unabated until the limiting protei...

journal_title：Virology

authors： Piechowski MM,Susman M

更新日期：1966-03-01 00:00:00

abstract：:Hepatitis B virus transcripts and DNA from paired samples of neoplastic and nonneoplastic liver tissue of HBsAg seropositive patients were analyzed. The data obtained support the view that transcription of integrated DNA is frequent, both in neoplastic as well as in nonneoplastic liver tissue. In the case of one patie...

journal_title：Virology

authors： Loncarević IF,Schranz P,Zentgraf H,Liang XH,Herrmann G,Tang ZY,Schröder CH

更新日期：1990-01-01 00:00:00