Molluscum contagiosum virus topoisomerase: purification, activities, and response to inhibitors.

abstract：:We investigated the synergism between influenza virus and Streptococcus pneumoniae, particularly the role of deletions in the stalk region of the neuraminidase (NA) of H2N2 and H9N2 avian influenza viruses. Deletions in the NA stalk (ΔNA) had no effect on NA activity or on the adherence of S. pneumoniae to virus-infec...

journal_title：Journal of virology

authors： Chockalingam AK,Hickman D,Pena L,Ye J,Ferrero A,Echenique JR,Chen H,Sutton T,Perez DR

更新日期：2012-04-01 00:00:00

abstract：UNLABELLED:The gastrointestinal mucosa is the primary site where human immunodeficiency virus type 1 (HIV-1) invades, amplifies, and becomes persistently established, and cell-to-cell transmission of HIV-1 plays a pivotal role in mucosal viral dissemination. Mast cells are widely distributed in the gastrointestinal tra...

journal_title：Journal of virology

authors： Jiang AP,Jiang JF,Wei JF,Guo MG,Qin Y,Guo QQ,Ma L,Liu BC,Wang X,Veazey RS,Ding YB,Wang JH

更新日期：2015-12-30 00:00:00

abstract：:Human cytomegalovirus (HCMV) productive replication in vitro is most often studied in fibroblasts. In vivo, fibroblasts amplify viral titers, but transmission and pathogenesis require the infection of other cell types, most notably epithelial cells. In vitro, the study of HCMV infection of epithelial cells has been al...

journal_title：Journal of virology

authors： Weng C,Lee D,Gelbmann CB,Van Sciver N,Nawandar DM,Kenney SC,Kalejta RF

更新日期：2018-07-31 00:00:00

abstract：:The biological activity encoded in the putative protease gene (pro) of human T-cell leukemia virus type I was investigated by using a vaccinia virus expression vector. The 53-kilodalton gag precursor polyprotein was processed into the mature p19, p24, and p15 gag proteins when the gag and protease-coding sequence was ...

journal_title：Journal of virology

authors： Nam SH,Kidokoro M,Shida H,Hatanaka M

更新日期：1988-10-01 00:00:00

abstract：:Secondary cultures of chicken embryo fibroblasts were infected with the Schmidt Ruppin strain of Rous sarcoma virus (RSV). Five days after infection, the medium was replaced at 2-h intervals with phosphate-free Eagle medium containing 50 muCi of [32P]orthophosphate per ml. Virus was collected by centrifugation, and th...

journal_title：Journal of virology

authors： Jacobson AB,Bromley PA

更新日期：1975-01-01 00:00:00

abstract：:Alternative splicing of the human immunodeficiency virus type 1 (HIV-1) genomic mRNA produces more than 40 unique viral mRNA species, of which more than half remain incompletely spliced within an HIV-1-infected cell. Regulation of splicing at HIV-1 3' splice sites (3'ss) requires suboptimal polypyrimidine tracts, and ...

journal_title：Journal of virology

authors： Madsen JM,Stoltzfus CM

更新日期：2005-08-01 00:00:00

abstract：:It has been previously shown that rotavirus maturation and stability of the outer capsid are calcium-dependent processes. More recently, it has been hypothesized that penetration of the cell membrane is also affected by conformational changes of the capsid induced by Ca2+. In this study, we determined quantitatively t...

journal_title：Journal of virology

authors： Ruiz MC,Charpilienne A,Liprandi F,Gajardo R,Michelangeli F,Cohen J

更新日期：1996-08-01 00:00:00

abstract：:We have constructed a series of vectors based on simian foamy virus type 1 (SFV-1) to define the minimum cis-acting elements required for gene transfer. To characterize these vectors, we inserted the coding sequence of the bacterial lacZ gene linked to the cytomegalovirus immediate-early gene promoter. Introduction of...

journal_title：Journal of virology

authors： Wu M,Chari S,Yanchis T,Mergia A

更新日期：1998-04-01 00:00:00

abstract：:Cervical cancer develops through the combined activities of the human papillomavirus (HPV) E6 and E7 oncoproteins. A defining characteristic of E6 oncoproteins derived from cancer-causing HPV types is the presence of a PDZ binding motif (PBM) at the extreme carboxy terminus of the protein which is absent from E6 prote...

journal_title：Journal of virology

authors： Boon SS,Banks L

更新日期：2013-02-01 00:00:00

abstract：:Ebola virus (EBOV) continues to pose a significant threat to human health, as evidenced by the 2013-2016 epidemic in West Africa and the ongoing outbreak in the Democratic Republic of the Congo. EBOV causes hemorrhagic fever, organ damage, and shock culminating in death, with case fatality rates as high as 90%. This h...

journal_title：Journal of virology

authors： Jankeel A,Menicucci AR,Woolsey C,Fenton KA,Mendoza N,Versteeg K,Cross RW,Geisbert TW,Messaoudi I

更新日期：2020-05-18 00:00:00

abstract：:trans activation of the human immunodeficiency virus type 1 long terminal repeat requires that the viral trans activator Tat interact with the trans-acting responsive region (TAR) RNA. Although the N-terminal 47 amino acids represent an independent activation domain that functions via heterologous nucleic acid-binding...

journal_title：Journal of virology

authors： Luo Y,Peterlin BM

更新日期：1993-06-01 00:00:00

abstract：:Expression of the selectable drug resistance gene in retroviral vectors used for gene therapy can lead to a decreased expression of the gene of interest and may induce a host immune response, resulting in a decreased efficiency of gene therapy. In this study, we demonstrate that high-frequency deletion of direct repea...

journal_title：Journal of virology

authors： Delviks KA,Pathak VK

更新日期：1999-10-01 00:00:00

abstract：:By using an isothermal multiply primed rolling-circle amplification protocol, the complete genomic DNA of a novel papillomavirus was amplified from a skin lesion biopsy of a Florida manatee (Trichechus manatus latirostris), one of the most endangered marine mammals in United States coastal waters. The nucleotide seque...

journal_title：Journal of virology

authors： Rector A,Bossart GD,Ghim SJ,Sundberg JP,Jenson AB,Van Ranst M

更新日期：2004-11-01 00:00:00

abstract：:Arginine methylation of human immunodeficiency virus type 1 (HIV-1) Tat protein downregulates its key function in viral-gene transactivation. The fate of methylated Tat is unknown, so it is unclear whether methylated Tat is degraded or persists in the cell for additional functions. Here we show that the arginine methy...

journal_title：Journal of virology

authors： Sivakumaran H,van der Horst A,Fulcher AJ,Apolloni A,Lin MH,Jans DA,Harrich D

更新日期：2009-11-01 00:00:00

abstract：:Bovine leukemia virus (BLV) from either persistently infected bat cells or fetal lamb kidney cells induced rapid syncytium formation in F81 indicator cells. Distinct syncytia were seen within 2 h after inoculation of cells with highly concentrated (500-fold) cell-free BLV preparations and within 4 to 8 h when unconcen...

journal_title：Journal of virology

authors： Graves DC,Jones LV

更新日期：1981-06-01 00:00:00

abstract：:The potential use of the modified vaccinia virus Ankara (MVA) strain as a live recombinant vector to deliver antigens and elicit protective immune responses against infectious diseases demands a comprehensive understanding of the effect of MVA infection on human host gene expression. We used microarrays containing mor...

journal_title：Journal of virology

authors： Guerra S,López-Fernández LA,Conde R,Pascual-Montano A,Harshman K,Esteban M

更新日期：2004-06-01 00:00:00

abstract：:The Kaposi's sarcoma-associated herpesvirus (KSHV) open reading frame 57 (ORF57)-encoded protein (Mta) is a multifunctional regulator of viral gene expression. ORF57 is essential for viral replication, so elucidation of its molecular mechanisms is important for understanding KSHV infection. ORF57 has been implicated i...

journal_title：Journal of virology

authors： Hunter OV,Sei E,Richardson RB,Conrad NK

更新日期：2013-04-01 00:00:00

abstract：:The human adenovirus type 2 (Ad2) mutant Ad2ts111 has previously been shown to contain two mutations which result in a complex phenotype. Ad2ts111 contains a single base change in the early region 1B (E1B) 19,000-molecular-weight (19K) coding region which yields a cyt deg phenotype and another defect which maps to the...

journal_title：Journal of virology

authors： Prelich G,Stillman BW

更新日期：1986-03-01 00:00:00

abstract：:The herpes simplex virus glycoprotein designated VP7(B2) is extracted from virions by nonionic detergent in the form of an oligomer, whereas the other detergent-soluble envelope proteins appear to be extracted as monomers. The subunits of the VP7(B2) oligomer cannot be dissociated by 2-mercaptoethanol and are also res...

journal_title：Journal of virology

authors： Sarmiento M,Spear PG

更新日期：1979-03-01 00:00:00

abstract：:We used 18 monoclonal antibodies against B19 parvovirus to identify neutralizing epitopes on the viral capsid. Of the 18 antibodies, 9 had in vitro neutralizing activity in a bone marrow colony culture assay. The overlapping polypeptide fragments spanning the B19 structural proteins were produced in a pMAL-c Escherich...

journal_title：Journal of virology

authors： Yoshimoto K,Rosenfeld S,Frickhofen N,Kennedy D,Hills R,Kajigaya S,Young NS

更新日期：1991-12-01 00:00:00

abstract：:AV3 cells (continuous human amnion) infected with the Onderstepoort strain of canine distemper virus produced cell fusion within 2 to 5 hr when added to AV3 cell monolayers. An apparent requirement for intact, infected cells was demonstrated by showing that (i) frozen-and-thawed infected cells failed to induce fusion,...

journal_title：Journal of virology

authors： Rankin AM,Fisher LE,Bussell RH

更新日期：1972-12-01 00:00:00

abstract：:The involvement of two bacteriophage T4 gene products in the initiation of T4 tail tube and sheath polymerization on mature baseplates has been studied by radioautography of acrylamide gels of various partially completed tail structures. The products of genes 48 and 54 (P48[the nomenclature P48 refers to the protein p...

journal_title：Journal of virology

authors： Berget PB,Warner HR

更新日期：1975-12-01 00:00:00

abstract：:Attempts to elicit broadly neutralizing antibody responses by human immunodeficiency virus type 1 (HIV-1) vaccine antigens have been met with limited success. To better understand the requirements for cross-neutralization of HIV-1, we have characterized the neutralizing antibody specificities present in the sera of th...

journal_title：Journal of virology

authors： Dhillon AK,Donners H,Pantophlet R,Johnson WE,Decker JM,Shaw GM,Lee FH,Richman DD,Doms RW,Vanham G,Burton DR

更新日期：2007-06-01 00:00:00

abstract：:The vaccinia virus F10 protein is one of two virally encoded protein kinases. A phenotypic analysis of infections involving a tetracycline-inducible recombinant (vDeltaiF10) indicated that F10 is involved in the early stages of virion morphogenesis, as previously reported for the mutants ts28 and ts15. The proteins en...

journal_title：Journal of virology

authors： Punjabi A,Traktman P

更新日期：2005-02-01 00:00:00

abstract：:Besides its role in viral assembly, the vesicular stomatitis virus (VSV) matrix (M) protein causes cytopathic effects such as cell rounding (D. Blondel, G. G. Harmison, and M. Schubert, J. Virol. 64:1716-1725, 1990). DNA cotransfection assays demonstrated that VSV M protein was able to inhibit the transcription of a r...

journal_title：Journal of virology

authors： Paik SY,Banerjea AC,Harmison GG,Chen CJ,Schubert M

更新日期：1995-06-01 00:00:00

abstract：:The full-length viral RNA of human immunodeficiency virus type 1 (HIV-1) functions both as the mRNA for the viral structural proteins Gag and Gag/Pol and as the genomic RNA packaged within viral particles. The packaging signal which Gag recognizes to initiate genome encapsidation is in the 5' untranslated region (UTR)...

journal_title：Journal of virology

authors： Anderson EC,Lever AM

更新日期：2006-11-01 00:00:00

abstract：:Betanodaviruses, the causal agents of viral nervous necrosis in marine fish, have bipartite positive-sense RNAs as genomes. The larger genomic segment, RNA1 (3.1 kb), encodes an RNA-dependent RNA polymerase, and the smaller genomic segment, RNA2 (1.4 kb), codes for the coat protein. Betanodaviruses have marked host sp...

journal_title：Journal of virology

authors： Iwamoto T,Okinaka Y,Mise K,Mori K,Arimoto M,Okuno T,Nakai T

更新日期：2004-02-01 00:00:00

abstract：:Profiles of bacteriophage T4 early proteins resolved by a two-dimensional nonequilibrium pH gradient electrophoresis system (P. Z. O'Farrell, H. M. Goodman, and P. H. O'Farrell, Cell 12:1133--1142, 1977) are presented. Over 65 phage-induced proteins were resolved. Amber or deletion mutants were used to identify 17 pro...

journal_title：Journal of virology

authors： Cook KS,Seasholtz AF

更新日期：1982-06-01 00:00:00

abstract：:Major histocompatibility complex E (MHC-E) is a highly conserved nonclassical MHC-Ib molecule that tightly binds peptides derived from leader sequences of classical MHC-Ia molecules for presentation to natural killer cells. However, MHC-E also binds diverse foreign and neoplastic self-peptide antigens for presentation...

journal_title：Journal of virology

authors： Abdulhaqq SA,Wu H,Schell JB,Hammond KB,Reed JS,Legasse AW,Axthelm MK,Park BS,Asokan A,Früh K,Hansen SG,Picker LJ,Sacha JB

更新日期：2019-09-12 00:00:00

abstract：:Infection of cells with poliovirus induces a massive intracellular membrane reorganization to form vesicle-like structures where viral RNA replication occurs. The mechanism of membrane remodeling remains unknown, although some observations have implicated components of the cellular secretory and/or autophagy pathways....

journal_title：Journal of virology

authors： Belov GA,Altan-Bonnet N,Kovtunovych G,Jackson CL,Lippincott-Schwartz J,Ehrenfeld E

更新日期：2007-01-01 00:00:00