Abstract:
:The endogenous transcriptase present in purified vesicular stomatitis (VS) virions was solubilized with a Triton X-100 high-salt solution. The polymerase activity was purified on glycerol gradients and by phosphocellulose column chromatography; the viral proteins present in the active enzyme fractions were identified by sodium dodecyl sulfate polyacrylamide gel electrophoresis. It was demonstrated that L protein, but not NS protein, was required for in vitro RNA synthesis on the VS viral nucleocapsid template. Solubilized L protein rebinds to the ribonucleoprotein template when the transcription complex is reconstituted, and the RNA synthesized in vitro by purified L protein hybridizes to virion RNA. Cyanogen bromide peptide fingerprints indicate that the large L protein is a unique polypeptide chain. It is concluded that the L protein functions as the transcriptase, and the nucleocapsid NS protein is not essential for in vitro RNA synthesis.
journal_name
J Viroljournal_title
Journal of virologyauthors
Emerson SU,Wagner RRdoi
10.1128/JVI.12.6.1325-1335.1973subject
Has Abstractpub_date
1973-12-01 00:00:00pages
1325-35issue
6eissn
0022-538Xissn
1098-5514journal_volume
12pub_type
杂志文章abstract::Human norovirus (HuNoV) is a major causative agent of food-borne gastroenteritis worldwide. Currently, there are no vaccines or effective therapeutic interventions for this virus. Development of an attenuated vaccine for HuNoV has been hampered by the inability to grow the virus in cell culture. Thus, a vector-based v...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02332-10
更新日期:2011-03-01 00:00:00
abstract::Rotavirus is the major cause of diarrhea among young infants in both humans and animals. Immune protection of newborns by vaccination is difficult to achieve since there is not enough time to mount an immune response before exposure to the virus. We have designed a vaccination strategy mediating transfer of neutralizi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.19.8966-8971.2000
更新日期:2000-10-01 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
pub_type: 杂志文章
doi:10.1128/JVI.01370-12
更新日期:2012-11-01 00:00:00
abstract::The membrane glycoproteins G1 and G2 of Uukuniemi virus, a member of the Bunyaviridae family, are cotranslationally cleaved from a common precursor in the endoplasmic reticulum (ER). Here, we show that newly made G1 and G2 associate transiently with calnexin and calreticulin, two lectins involved in glycoprotein foldi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.7.6123-6127.1999
更新日期:1999-07-01 00:00:00
abstract::Zika virus (ZIKV) has emerged as a cause of congenital brain anomalies and a range of placenta-related abnormalities, highlighting the need to unveil the modes of maternal-fetal transmission. The most likely route of vertical ZIKV transmission is via the placenta. The earliest events of ZIKV transmission in the matern...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01905-16
更新日期:2017-01-31 00:00:00
abstract::We have devised an enrichment scheme for the isolation of export-competent derivatives of pseudorabies virus glycoprotein gIII signal peptide mutants. Enrichment is based upon a growth advantage imparted upon gIII-containing virions compared with virions lacking the glycoprotein. Each of identified derivatives suppres...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.5.2787-2794.1994
更新日期:1994-05-01 00:00:00
abstract::Human papillomavirus type 16 (HPV16) is the primary etiologic agent for cervical cancer. The infectious entry of HPV16 into cells occurs via a so-far poorly characterized clathrin- and caveolin-independent endocytic pathway, which involves tetraspanin proteins and actin. In this study, we investigated the specific rol...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02906-12
更新日期:2013-03-01 00:00:00
abstract::Vaccinia virus assembles two distinct lipoprotein membranes. The primary membrane contains nonglycosylated proteins, appears as crescents in the cytoplasm, and delimits immature and mature intracellular virions. The secondary or wrapping membrane contains glycoproteins, is derived from virus-modified trans-Golgi or en...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.21.11754-11766.2003
更新日期:2003-11-01 00:00:00
abstract::We have developed a reconstituted system which models the events associated with human immunodeficiency virus type 1 (HIV-1) plus-strand transfer. These events include synthesis of plus-strand strong-stop DNA [(+) SSDNA] from a minus-strand DNA donor template covalently attached to human tRNA3Lys, tRNA primer removal,...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.6.4794-4805.1999
更新日期:1999-06-01 00:00:00
abstract::The Rep78 and Rep68 proteins of adeno-associated virus type 2 (AAV) are multifunctional proteins which are required for viral replication, regulation of AAV promoters, and preferential integration of the AAV genome into a region of human chromosome 19. These proteins bind the hairpin structures formed by the AAV inver...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.3.2084-2093.1999
更新日期:1999-03-01 00:00:00
abstract::Type C RNA virus(es) was readily released from primary lymphosarcoma cell cultures of WH/J rabbits after induction with halogenated pyrimidines. The virus contained an RNA-directed DNA polymerase and the p30 structural protein. The rabbit virus RNA-directed DNA polymerase and p30 protein shared antigenic homologies wi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.27.2.313-319.1978
更新日期:1978-08-01 00:00:00
abstract::We report on the use of spectral map analysis of the inter- and intraclade neutralization data of 14 sera of human immunodeficiency virus type 1 (HIV-1)-infected individuals and 16 primary isolates, representing genetic clades A to H in group M and group O. This multivariate analysis has been used previously to study ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.9.6235-6243.1996
更新日期:1996-09-01 00:00:00
abstract::The E1 helicase of papillomaviruses is required for replication of the viral double-stranded DNA genome, in conjunction with cellular factors. DNA replication is initiated at the viral origin by the assembly of E1 monomers into oligomeric complexes that have unwinding activity. In vivo, this process is catalyzed by th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.9.5178-5191.2003
更新日期:2003-05-01 00:00:00
abstract::Epstein-Barr virus (EBV) is a ubiquitous human pathogen associated with Burkitt's lymphoma and nasopharyngeal carcinoma. Although the EBV genome harbors more than a hundred genes, a full transcription map with EBV polyadenylation profiles remains unknown. To elucidate the 3' ends of all EBV transcripts genome-wide, we...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01593-18
更新日期:2019-01-04 00:00:00
abstract::The release of the ribonucleic acid (RNA)-containing phage MS2 from Escherichia coli is accompanied by cellular lysis at 37 C, whereas at 30 C phage are released from intact cells. Chloramphenicol or rifampin prevents the release of progeny phage particles at both temperatures. Neither drug causes an immediate cessati...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.8.3.257-264.1971
更新日期:1971-09-01 00:00:00
abstract::The Ebola virus glycoprotein mucin-like domain (MLD) is implicated in Ebola virus cell entry and immune evasion. Using cryo-electron tomography of Ebola virus-like particles, we determined a three-dimensional structure for the full-length glycoprotein in a near-native state and compared it to that of a glycoprotein la...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00870-14
更新日期:2014-09-01 00:00:00
abstract::The alphavirus Semliki Forest virus (SFV) infects cells through low-pH-induced membrane fusion mediated by the E1 protein, a class II virus membrane fusion protein. During fusion, E1 inserts into target membranes via its hydrophobic fusion loop and refolds to form a stable E1 homotrimer. Mutation of a highly conserved...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00167-06
更新日期:2006-06-01 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
pub_type: 杂志文章
doi:10.1128/JVI.00592-19
更新日期:2019-09-12 00:00:00
abstract::Human immunodeficiency virus (HIV) infections in sub-Saharan Africa represent about 56% of global infections. Study of active-site mutations (the V82A single mutation and the V82F I84V double mutation) in the less-studied South African HIV type 1 subtype C (C-SA) protease indicated that neither mutation had a signific...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00726-08
更新日期:2008-11-01 00:00:00
abstract::The adenovirus type 4 origins of replication are located at each end of the linear, protein-linked viral DNA molecule and consist of the terminal 18 bp of the viral genome. The sequence of the first 8 bp of the viral genome varies among different adenovirus serotypes, but the sequence from bp 9 to 18 is conserved in a...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.9.5037-5044.1991
更新日期:1991-09-01 00:00:00
abstract::Arenaviruses are rodent-borne viruses with a bisegmented RNA genome. A genetically unique arenavirus, Lujo virus, was recently discovered as the causal agent of a nosocomial outbreak of acute febrile illness with hemorrhagic manifestations in Zambia and South Africa. The outbreak had a case fatality rate of 80%. A rev...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01144-12
更新日期:2012-10-01 00:00:00
abstract::Modification of proteins by ubiquitin is essential for numerous cellular processes. The RING-H2 finger motif has been implicated in ubiquitin-conjugating enzyme (E2)-dependent ubiquitination. Four proteins, WSSV199, WSSV222, WSSV249, and WSSV403, from white spot syndrome virus (WSSV) contain the RING-H2 motif. Here we...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.14.8764-8772.2005
更新日期:2005-07-01 00:00:00
abstract::Utilizing a human cytomegalovirus-specific fusion inhibitor and an antiglycoprotein H antibody, we studied the role of virion fusion in interferon-stimulated gene (ISG) induction. Our results indicate that ISG induction does not occur when virion-mediated, post-high-affinity attachment events are inhibited by either r...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.12.6688-6691.2004
更新日期:2004-06-01 00:00:00
abstract:UNLABELLED:Cell culture systems reproducing virus replication can serve as unique models for the discovery of novel bioactive molecules. Here, using a hepatitis C virus (HCV) cell culture system, we identified neoechinulin B (NeoB), a fungus-derived compound, as an inhibitor of the liver X receptor (LXR). NeoB was init...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00856-16
更新日期:2016-09-29 00:00:00
abstract::Human hepatitis B virus (HBV) is a small DNA virus that replicates inside the viral nucleocapsid by reverse transcription of an RNA intermediate. Encapsidation of this RNA pregenome is mediated by the interaction of the viral replication enzyme P with the structured 5'-proximal RNA element epsilon; replication was tho...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.5.2764-2773.1996
更新日期:1996-05-01 00:00:00
abstract::Severe acute respiratory syndrome (SARS) coronavirus (SARS-CoV) is known to take an endosomal pathway for cell entry; however, it is thought to enter directly from the cell surface when a receptor-bound virion spike (S) protein is affected by trypsin, which induces cleavage of the S protein and activates its fusion po...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01412-08
更新日期:2008-12-01 00:00:00
abstract::Genetic and phylogenetic analyses suggest that the pandemic H1N1/2009 virus was derived from well-established swine influenza lineages; however, there is no convincing evidence that the pandemic virus was generated from a direct precursor in pigs. Furthermore, the evolutionary dynamics of influenza virus in pigs have ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01679-14
更新日期:2014-10-01 00:00:00
abstract::An assay to identify interactions between Citrus Dwarfing Viroid (CDVd) and Citrus Tristeza Virus (CTV) showed that viroid titer was enhanced by the coinfecting CTV in Mexican lime but not in etrog citron. Since CTV encodes three RNA silencing suppressors (RSSs), p23, p20 and p25, an assay using transgenic Mexican lim...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02619-13
更新日期:2014-01-01 00:00:00
abstract::The Borna disease virus (BDV) is the prototype member of the Bornaviridae, and it replicates in the cell nucleus. The BDV p24P and p40N proteins carry nuclear localization signals (NLS) and are found in the nuclei of infected cells. The BDV p10 protein does not have an NLS, but it binds with P and/or N and is transloc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.7.3413-3417.2000
更新日期:2000-04-01 00:00:00
abstract:UNLABELLED:In Kaposi's sarcoma-associated herpesvirus (KSHV), poly(ADP-ribose) polymerase 1 (PARP-1) acts as an inhibitor of lytic replication. Here, we demonstrate that KSHV downregulated PARP-1 upon reactivation. The viral processivity factor of KSHV (PF-8) interacted with PARP-1 and was sufficient to degrade PARP-1 ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00559-15
更新日期:2015-09-01 00:00:00