Biological activities of a synthetic peptide composed of two unlinked domains from a retroviral transmembrane protein sequence.

abstract：:The capsid mRNA transcripts of human bocavirus 1 (HBoV1) can be generated by alternative splicing from the mRNA precursor transcribed from the P5 promoter. However, the alternative translation regulation mechanism of capsid mRNA transcripts is largely unknown. Here we report that the polycistronic capsid mRNA transcri...

journal_title：Journal of virology

authors： Liu X,Hao S,Chen Z,Xu H,Wang H,Huang M,Guan W

更新日期：2018-10-12 00:00:00

abstract：:To study the role of the biochemical and physiological activities of simian virus 40 (SV40) large T antigen in the lytic and transformation processes, we have analyzed DNA replication-defective, transformation-competent T-antigen mutants. Here we describe two such mutants, C8/SV40 and T22/SV40, and also summarize the ...

journal_title：Journal of virology

authors： Manos MM,Gluzman Y

更新日期：1985-01-01 00:00:00

abstract：:Viral manipulation of transduction pathways associated with key cellular functions such as survival, response to microbial infection, and cytoskeleton reorganization can provide the supportive milieu for a productive infection. Here, we demonstrate that vaccinia virus (VACV) infection leads to activation of the stress...

journal_title：Journal of virology

authors： Pereira AC,Leite FG,Brasil BS,Soares-Martins JA,Torres AA,Pimenta PF,Souto-Padrón T,Traktman P,Ferreira PC,Kroon EG,Bonjardim CA

更新日期：2012-01-01 00:00:00

abstract：:The double-stranded-DNA bacteriophages employ powerful molecular motors to translocate genomic DNA into preformed capsids during the packaging step in phage assembly. Bacillus subtilis bacteriophage 29 has an oligomeric prohead RNA (pRNA) that is an essential component of its packaging motor. The crystal structure of ...

journal_title：Journal of virology

authors： Zhao W,Saha M,Ke A,Morais MC,Jardine PJ,Grimes S

更新日期：2012-11-01 00:00:00

abstract：:The intranuclear structure of parental adenovirus 2 DNA was studied using digestion with micrococcal nuclease as a probe. When cultures were infected with 32P-labeled virions, at a multiplicity of 3,000 particles per cell, 14 to 21% of parental DNA penetrated the cell and reached the nucleus. Of this parental DNA, 60%...

journal_title：Journal of virology

authors： Sergeant A,Tigges MA,Raskas HJ

更新日期：1979-03-01 00:00:00

abstract：:Simian immunodeficiency virus (SIV) and human immunodeficiency virus (HIV) infections lead to rapid depletion of CD4(+) T cells from gut-associated lymphoid tissue (GALT). Although the administration of antiretroviral therapy (ART) has been shown to increase CD4(+) T-cell levels in the peripheral blood in both SIV and...

journal_title：Journal of virology

authors： George MD,Reay E,Sankaran S,Dandekar S

更新日期：2005-03-01 00:00:00

abstract：:Mutants of bacteriophage T4D that are defective in genes 42 (dCMP hydroxymethylase), 46 (DNA exonuclease), and 56 (dCTPase) produce limited amounts of phage DNA in Escherichia coli B. In this DNA, glucoylated 5-hydroxymethylcytosine is completely replaced by cytosine. We found that this DNA rapidly becomes fragmented ...

journal_title：Journal of virology

authors： Carlson K,Wiberg JS

更新日期：1983-10-01 00:00:00

abstract：:Epstein-Barr virus (EBV)-encoded molecules have been detected in the tumor tissues of several cancers, including nasopharyngeal carcinoma (NPC), suggesting that EBV plays an important role in tumorigenesis. However, the nature of EBV with respect to genome width in vivo and whether EBV undergoes clonal expansion in th...

journal_title：Journal of virology

authors： Liu P,Fang X,Feng Z,Guo YM,Peng RJ,Liu T,Huang Z,Feng Y,Sun X,Xiong Z,Guo X,Pang SS,Wang B,Lv X,Feng FT,Li DJ,Chen LZ,Feng QS,Huang WL,Zeng MS,Bei JX,Zhang Y,Zeng YX

更新日期：2011-11-01 00:00:00

abstract：:Reverse transcriptases (RTs) are found in a wide variety of mobile genetic elements including viruses, retrotransposons, and infectious organellar introns. An invariant triad of aspartates is thought to be required for the catalytic function of RTs. We generated RT mutants in the yeast retrotransposon Ty1, changing ea...

journal_title：Journal of virology

authors： Uzun O,Gabriel A

更新日期：2001-07-01 00:00:00

abstract：:The hepadnavirus reverse transcriptase is a multifunction enzyme. In addition to its role in DNA synthesis, the polymerase is required for RNA packaging and also functions as the primer for minus-strand DNA synthesis. Previously, we demonstrated that the protein-priming activity of the polymerase requires a viral RNA ...

journal_title：Journal of virology

authors： Wang GH,Zoulim F,Leber EH,Kitson J,Seeger C

更新日期：1994-12-01 00:00:00

abstract：:Marburg virus (MARV) has been associated with sporadic episodes of hemorrhagic fever, including a recent highly publicized outbreak in Angola that produced severe disease and significant mortality in infected patients. MARV is also considered to have potential as a biological weapon. Recently, we reported the developm...

journal_title：Journal of virology

authors： Daddario-DiCaprio KM,Geisbert TW,Geisbert JB,Ströher U,Hensley LE,Grolla A,Fritz EA,Feldmann F,Feldmann H,Jones SM

更新日期：2006-10-01 00:00:00

abstract：:Host cell-mediated proteolytic cleavage of the human immunodeficiency virus type 1 (HIV-1) gp160 precursor glycoprotein into gp120 and gp41 subunits is required to generate fusion-competent envelope glycoprotein (Env) spikes. The gp120-directed broadly neutralizing monoclonal antibodies (bNabs) isolated from HIV-infec...

journal_title：Journal of virology

authors： Chakrabarti BK,Feng Y,Sharma SK,McKee K,Karlsson Hedestam GB,Labranche CC,Montefiori DC,Mascola JR,Wyatt RT

更新日期：2013-12-01 00:00:00

abstract：:The effects of human papillomavirus type 18 (HPV-18) E6 and E7 proteins on global patterns of host gene expression in primary human keratinocytes grown in organotypic raft culture system were assessed. Primary human keratinocytes were infected with retroviruses that express the wild-type HPV-18 E6 and E7 genes from th...

journal_title：Journal of virology

authors： Garner-Hamrick PA,Fostel JM,Chien WM,Banerjee NS,Chow LT,Broker TR,Fisher C

更新日期：2004-09-01 00:00:00

abstract：:A retrovirus vector has been developed that selects for instances in which the provirus integrates in close proximity to cellular promoters. Coding sequences for a selectable marker (histidinol dehydrogenase) were inserted into the 3' long terminal repeat (LTR) of an enhancerless Molony murine leukemia virus. Although...

journal_title：Journal of virology

authors： von Melchner H,Ruley HE

更新日期：1989-08-01 00:00:00

abstract：:The envelope of class I viruses can be a target for potent viral inhibitors, such as the human immunodeficiency virus type 1 (HIV-1) inhibitor enfuvirtide, which are derived from the C-terminal heptad repeat (HR2) of the transmembrane (TM) subunit. Resistance to an HR2-based peptide inhibitor of a model retrovirus, su...

journal_title：Journal of virology

authors： Amberg SM,Netter RC,Simmons G,Bates P

更新日期：2006-01-01 00:00:00

abstract：:Our previous studies have shown that targeting DNA vaccine-encoded major histocompatibility complex class I epitopes to the proteasome enhanced CD8(+) T-cell induction and protection against lymphocytic choriomeningitis virus (LCMV) challenge. Here, we expand these studies to evaluate CD4(+) T-cell responses induced b...

journal_title：Journal of virology

authors： Rodriguez F,Harkins S,Redwine JM,de Pereda JM,Whitton JL

更新日期：2001-11-01 00:00:00

abstract：:Retroviral Gag proteins have the ability to induce budding and particle release from the plasma membrane when expressed in the absence of all of the other virus-encoded components; however, the locations of the functional domains within the Gag protein that are important for this process are poorly understood. It was ...

journal_title：Journal of virology

authors： Weldon RA Jr,Wills JW

更新日期：1993-09-01 00:00:00

abstract：:Efforts to induce broadly reactive immunity against human immunodeficiency virus type 1 (HIV-1) have been impaired by the extent of sequence variation exhibited by this lentivirus. Cytotoxic T lymphocytes (CTL) specific for other viruses such as influenza virus have been shown to mediate immunity against divergent vir...

journal_title：Journal of virology

authors： Johnson RP,Hammond SA,Trocha A,Siliciano RF,Walker BD

更新日期：1994-05-01 00:00:00

abstract：:Three drug-dependent mutants of human rhinovirus 16 (HRV16) were characterized by sequence analyses of spontaneous mutant isolates and were genetically reconstructed from a parental cDNA plasmid. These mutants formed plaques in the presence but not in the absence of the selecting antiviral drug, WIN 52035, which binds...

journal_title：Journal of virology

authors： Wang W,Lee WM,Mosser AG,Rueckert RR

更新日期：1998-02-01 00:00:00

abstract：UNLABELLED:Multiple cellular pathways are regulated by small ubiquitin-like modifier (SUMO) modification, including ubiquitin-mediated proteolysis, signal transduction, innate immunity, and antiviral defense. In the study described in this report, we investigated the effects of SUMO on the replication of two members of...

journal_title：Journal of virology

authors： Maarifi G,Hannoun Z,Geoffroy MC,El Asmi F,Zarrouk K,Nisole S,Blondel D,Chelbi-Alix MK

更新日期：2016-06-24 00:00:00

abstract：:Rhesus rhadinovirus (RRV) is a gammaherpesvirus closely related to Kaposi's sarcoma-associated herpesvirus (KSHV), an oncogenic virus linked to the development of Kaposi's sarcoma and several other lymphoproliferative diseases, including primary effusion lymphoma and multicentric Castleman's disease. RRV naturally inf...

journal_title：Journal of virology

authors： Zhang W,Zhou F,Greene W,Gao SJ

更新日期：2010-11-01 00:00:00

abstract：:Members of the Paramyxovirinae subfamily rely on the concerted action of two envelope glycoprotein complexes, attachment protein H and the fusion (F) protein oligomer, to achieve membrane fusion for viral entry. Despite advances in X-ray information, the organization of the physiological attachment (H) oligomer in fun...

journal_title：Journal of virology

authors： Brindley MA,Plemper RK

更新日期：2010-12-01 00:00:00

abstract：:Hemagglutinin (HA) of influenza virus must be activated by proteolysis before the virus can become infectious. Previous studies indicated that HA cleavage is driven by membrane-bound or extracellular serine proteases in the respiratory tract. However, there is still uncertainty as to which proteases are critical for a...

journal_title：Journal of virology

authors： Magnen M,Gueugnon F,Guillon A,Baranek T,Thibault VC,Petit-Courty A,de Veer SJ,Harris J,Humbles AA,Si-Tahar M,Courty Y

更新日期：2017-07-27 00:00:00

abstract：:Viruses efficiently block the host antiviral response in order to replicate and spread before host intervention. The mechanism initiating antiviral immunity during stealth viral replication is unknown, but recent data demonstrate that defective viral genomes generated at peak virus replication are critical for this pr...

journal_title：Journal of virology

authors： López CB

更新日期：2014-08-01 00:00:00

abstract：:The 86-kDa IE2 protein (IE86) of human cytomegalovirus (HCMV) can act as both an activator and a repressor of gene expression. The mechanisms for both of these functions are not well defined. It has recently been demonstrated that this protein has sequence-specific DNA binding properties: it interacts directly with a ...

journal_title：Journal of virology

authors： Arlt H,Lang D,Gebert S,Stamminger T

更新日期：1994-07-01 00:00:00

abstract：:Cleavage of varicella-zoster virus DNA with the restriction endonucleases PstI, XbaI, and BglII resulted in 18, 22, and 20 fragments, respectively. Based on the molecular weights and molarities of these fragments, a molecular weight of 84 x 10(6) could be calculated for the varicella-zoster virus genome. In both the X...

journal_title：Journal of virology

authors： Dumas AM,Geelen JL,Weststrate MW,Wertheim P,van der Noordaa J

更新日期：1981-08-01 00:00:00

abstract：:Processing of dengue virus type 2 polyprotein precursor NS3-NS4A-NS4B-NS5 could be mediated by the catalytically active NS3 protease domain and NS2B in trans at the dibasic sites NS3-NS4A and NS4B-NS5. Subcellular localization of the unprocessed precursor NS3-NS4A-NS4B-NS5 showed that it was confined to a distinct sub...

journal_title：Journal of virology

authors： Zhang L,Mohan PM,Padmanabhan R

更新日期：1992-12-01 00:00:00

abstract：:TNPO3 is a nuclear importer required for HIV-1 infection. Here, we show that depletion of TNPO3 leads to an HIV-1 block after nuclear import but prior to integration. To investigate the mechanistic requirement of TNPO3 in HIV-1 infection, we tested the binding of TNPO3 to the HIV-1 core and found that TNPO3 binds to t...

journal_title：Journal of virology

authors： Valle-Casuso JC,Di Nunzio F,Yang Y,Reszka N,Lienlaf M,Arhel N,Perez P,Brass AL,Diaz-Griffero F

更新日期：2012-05-01 00:00:00

abstract：:Protective immunity to rotavirus (RV) is primarily mediated by antibodies produced by RV-specific memory B cells (RV-mBc). Of note, most of these cells express IgM, but the function of this subset is poorly understood. Here, using limiting dilution assays of highly sort-purified human IgM(+) mBc, we found that 62% and...

journal_title：Journal of virology

authors： Narváez CF,Feng N,Vásquez C,Sen A,Angel J,Greenberg HB,Franco MA

更新日期：2012-10-01 00:00:00

abstract：:The complete genome sequences of two Sulfolobus spindle-shaped viruses (SSVs) from acidic hot springs in Kamchatka (Russia) and Yellowstone National Park (United States) have been determined. These nonlytic temperate viruses were isolated from hyperthermophilic Sulfolobus hosts, and both viruses share the spindle-shap...

journal_title：Journal of virology

authors： Wiedenheft B,Stedman K,Roberto F,Willits D,Gleske AK,Zoeller L,Snyder J,Douglas T,Young M

更新日期：2004-02-01 00:00:00