Abstract:
:The herpes simplex virus type 1 genome contains three origins of DNA replication: two copies of oriS and one copy of oriL. Although oriS has been characterized extensively, characterization of oriL has been severely limited by the inability to amplify oriL sequences in an undeleted form in Escherichia coli. We report the successful cloning of intact oriL sequences in an E. coli strain, SURE, which contains mutations in a series of genes involved in independent DNA repair pathways shown to be important in the rearrangement and deletion of DNA containing irregular structures such as palindromes. The oriL-containing clones propagated in SURE cells contained no deletions, as determined by Southern blot hybridization and DNA sequence analysis, and were replication competent in transient DNA replication assays. Deletion of 400 bp of flanking sequences decreased the replication efficiency of oriL twofold in transient assays, demonstrating a role for flanking sequences in enhancing replication efficiency. Comparison of the replication efficiencies of an 822-bp oriS-containing plasmid and an 833-bp oriL-containing plasmid demonstrated that the kinetics of replication of the two plasmids were similar but that the oriL-containing plasmid replicated 60 to 70% as efficiently as the oriS-containing plasmid at both early and late times after infection with herpes simplex virus type 1. The virus-specified origin-binding protein (OBP) and a cellular factor(s) (OF-1) have been shown in gel mobility shift experiments to bind specific sequences in oriS (C.E. Dabrowski, P. Carmillo, and P.A. Schaffer, Mol. Cell. Biol. 14:2545-2555, 1994; C.E. Dabrowski and P.A. Schaffer, J. Virol. 65:3140-3150, 1991). Although the nucleotides required for the binding of OBP to OBP binding site I in oriL and oriS are the same, a single nucleotide difference distinguishes OBP binding site III in the two origins. The nucleotides adjacent to oriS sites I and III have been shown to be important for the binding of OF-1 to oriS site I. Several nucleotide differences exist in these sequences in oriL and oriS. Despite these minor nucleotide differences, the protein-DNA complexes that formed with oriL and oriS sites I and III were indistinguishable when extracts of infected and uninfected cells were used as the source of protein. Furthermore, the results of competition analysis suggest that the proteins involved in protein-DNA complex formation with sites I and III of the two origins are likely the same.
journal_name
J Viroljournal_title
Journal of virologyauthors
Hardwicke MA,Schaffer PAdoi
10.1128/JVI.69.3.1377-1388.1995subject
Has Abstractpub_date
1995-03-01 00:00:00pages
1377-88issue
3eissn
0022-538Xissn
1098-5514journal_volume
69pub_type
杂志文章abstract::Equine rhinitis A virus (ERAV) has recently been classified as an aphthovirus, a genus otherwise comprised of the different serotypes of Foot-and-mouth disease virus (FMDV). FMDV initiates translation via a type II internal ribosomal entry site (IRES) and utilizes two in-frame AUG codons to produce the leader proteina...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.24.11708-11716.2000
更新日期:2000-12-01 00:00:00
abstract::The EFII cis element is a 38-bp sequence at the 5' end of the Rous sarcoma virus long terminal repeat, extending from nucleotides -229 to -192 (with respect to the viral transcription start site), which is recognized by sequence-specific DNA-binding proteins in avian fibroblast nuclear extracts (L. Sealy and R. Chalkl...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.11.6338-6352.1992
更新日期:1992-11-01 00:00:00
abstract::Recently, we showed that the Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV) VP80 protein is essential for the formation of both virion types, budded virus (BV) and occlusion-derived virus (ODV). Deletion of the vp80 gene did not affect assembly of nucleocapsids. However, these nucleocapsids were not ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00035-11
更新日期:2011-06-01 00:00:00
abstract::Tetherin/BST-2 is a host-encoded protein that restricts a wide diversity of viruses at the stage of virion release. However, viruses have evolved antagonists of Tetherin, including the Vpu and Nef proteins of primate lentiviruses. Like other host genes subject to viral antagonism, primate Tetherin genes have evolved u...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00468-10
更新日期:2010-07-01 00:00:00
abstract::Human T-cell lymphotropic virus type 1 (HTLV-1) is transmitted through a viral synapse and enters target cells via interaction with the glucose transporter GLUT1. Here, we show that Neuropilin-1 (NRP1), the receptor for semaphorin-3A and VEGF-A165 and a member of the immune synapse, is also a physical and functional p...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02719-05
更新日期:2006-07-01 00:00:00
abstract::Molecularly cloned proviral DNA of avian oncogenic retrovirus CMII was isolated by screening a genomic library of a CMII-transformed quail cell line with a myc-specific probe. On a 10.4-kilobase EcoRI fragment, the cloned DNA contained 4.4 kilobases of CMII proviral sequences extending from the 5' long terminal repeat...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.54.2.576-585.1985
更新日期:1985-05-01 00:00:00
abstract::We have previously designed in vitro model systems to characterize the herpes simplex virus type 1 (HSV-1) genome during in vitro virus latency. Latency was established by treatment of infected human embryo lung fibroblast (HEL-F) cells or rat fetal neurons with (E)-5-(2-bromovinyl)-2'-deoxyuridine and human leukocyte...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.49.1.205-213.1984
更新日期:1984-01-01 00:00:00
abstract::We reported previously that an N-terminally truncated insulinlike growth factor I receptor (IGFR) fused to avian sarcoma virus UR2 gag p19 had a greater transforming potential than did the native IGFR, but it failed to cause tumors in vivo. To investigate whether the 36 amino acids (aa) of the IGFR extracellular (EC) ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.1.9-18.1993
更新日期:1993-01-01 00:00:00
abstract::The genome structure of a newly isolated sarcoma virus, Y73, was studied. Y73 is a defective, potent sarcomagenic virus and contains 4.8-kilobase (kb) RNA as its genome; in contrast, helper virus associated with Y73 had 8.5-kb RNA, similar to other avian leukemia viruses. Fingerprinting analysis these RNAs demonstrate...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.38.2.430-437.1981
更新日期:1981-05-01 00:00:00
abstract::Human cytomegalovirus (HCMV) UL84 is a phosphoprotein that shuttles from the nucleus to the cytoplasm and is required for oriLyt-dependent DNA replication and viral growth. UL84 was previously shown to interact with IE2 (IE86) in infected cells, and this interaction down-regulates IE2-mediated transcriptional activati...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01559-07
更新日期:2008-01-01 00:00:00
abstract::The role of cellular genes in West Nile virus (WNV) replication is not well understood. Examination of cellular transcripts upregulated during WNV infection revealed an increase in the expression of the src family kinase (SFK) c-Yes. WNV-infected cell lines treated with the SFK inhibitor PP2 demonstrated a 2- to 4-log...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.18.11943-11951.2005
更新日期:2005-09-01 00:00:00
abstract::The Group B Staphylococcus phage P11-M15 is shown to be 51% protein and 49% deoxyribonucleic acid (DNA). The intact virion has a molecular weight of 66.7 x 10(6) daltons. The purified viral DNA has a molecular weight of 32.7 x 10(6) daltons. The intact virion is shown to be composed of a polyhedral head which is attac...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.9.4.664-671.1972
更新日期:1972-04-01 00:00:00
abstract::Autographa californica nuclear polyhedrosis virus (AcMNPV) is a double-stranded DNA virus that expresses several immediate-early genes under the control of different promoters. The expression of one of these transcription units, IE-N, is shown here, by a transient expression assay, to be regulated by both cis- and tra...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.2.945-951.1991
更新日期:1991-02-01 00:00:00
abstract::Some retroviruses with an extended repeat (R) region encode the polyadenylation signal within the R region such that this signal is present at both the 5' and 3' ends of the viral transcript. This necessitates differential regulation to either repress recognition of the 5' polyadenylation signal or enhance usage of th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.1.81-91.1999
更新日期:1999-01-01 00:00:00
abstract::To study the expression of the Autographa californica nuclear polyhedrosis virus (AcNPV) genome, intracellular virus-specific proteins and mRNAs were pulsed-labeled, extracted, and analyzed at 6-h intervals during the replicative cycle. Most RNAs were detected between 12 and 24 h postinfection (p.i.), but many continu...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.50.3.739-747.1984
更新日期:1984-06-01 00:00:00
abstract::GP64, the major envelope glycoprotein of the Autographa californica multicapsid nucleopolyhedrovirus (AcMNPV) budded virion, is important for host cell receptor binding and mediates low-pH-triggered membrane fusion during entry by endocytosis. In the current study, we examined the functional role of the AcMNPV GP64 tr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02104-07
更新日期:2008-04-01 00:00:00
abstract::Typical herpes simplex virus (HSV) capsids contain seven proteins that form a T=16 icosahedron of 1,250-A diameter. Infection of cells with recombinant baculoviruses expressing two of these proteins, VP5 (which forms the pentons and hexons in typical HSV capsids) and VP19C (a component of the triplexes that connect ad...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.8.6821-6830.1999
更新日期:1999-08-01 00:00:00
abstract::Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe acute respiratory infection with as yet unclear epidemiology. We previously showed that MERS-CoV counteracts parts of the innate immune response in human bronchiolar cells. Here we analyzed accessory proteins 3, 4a, 4b, and 5 for their abilities to ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01845-13
更新日期:2013-11-01 00:00:00
abstract::Human CD317 (BST-2/tetherin) is an intrinsic immunity factor that blocks the release of retroviruses, filoviruses, herpesviruses, and arenaviruses. It is unclear whether CD317 expressed endogenously in rodent cells has the capacity to interfere with the replication of the retroviral rodent pathogen murine leukemia vir...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01067-10
更新日期:2010-11-01 00:00:00
abstract::Cytotoxic T lymphocytes (CTL) play an important role in recovery from a number of viral infections. They are also implicated in virus-induced immunopathology as best demonstrated in lymphocytic choriomeningitis virus (LCMV) infection of adult immunocompetent mice. In the present study, the structure of the T-cell rece...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.12.5919-5926.1990
更新日期:1990-12-01 00:00:00
abstract::PM2 DNA was prepared with different superhelical densities (sigma) in order to examine the relationship betweenn supercoiling and the occurrence of a region(s) of unpaired bases in this DNA. A previous study showed that CH3HgOH reacts with native superhelical PM2 DNA more rapidly than the nicked form II. This evaluati...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.18.1.195-204.1976
更新日期:1976-04-01 00:00:00
abstract::Defective reovirions lacking the largest (L-1) of the normal 10 genomic segments grow only in association with helper reovirus. Because of the similarity in properties of defective and infectious virions, separation of the two populations by physical methods has been unseccessful. Controlled digestion of purified viru...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.15.4.954-963.1975
更新日期:1975-04-01 00:00:00
abstract::Translation of poliovirus RNA occurs by the binding of ribosomes to an internal segment of RNA sequence within the 5' untranslated region of the viral RNA. This region is predicted to consist of six domains (I to VI) that possess complex secondary and tertiary structures. Domain IV is a large region in which alteratio...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.7.4381-4389.1995
更新日期:1995-07-01 00:00:00
abstract::We analyzed a region of the capsid of canine parvovirus (CPV) which determines the ability of the virus to infect canine cells. This region is distinct from those previously shown to determine the canine host range differences between CPV and feline panleukopenia virus. It lies on a ridge of the threefold spike of the...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.12.9214-9222.1997
更新日期:1997-12-01 00:00:00
abstract::The relative contribution of measles virus hemagglutinin (H)- or fusion protein (F)-specific antibodies to virus neutralization (VN) has not been demonstrated. We have depleted these specific antibodies from sera collected from young adults, who had been vaccinated during childhood, by prolonged incubation with viable...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.17.11547-11551.2005
更新日期:2005-09-01 00:00:00
abstract::Strains of Bacillus that harbor defective phage PBSX were found to be insensitive to SP-10(C), although the phage adsorbed to these insensitive strains. Strains that did not carry the phage were sensitive to SP-10(C). B. subtilis 168 ind(-), which can be tranduced by SP-10(C) but is nonpermissive for the phage, was re...
journal_title:Journal of virology
pub_type: 杂志文章
doi:
更新日期:1968-08-01 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
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
pub_type: 杂志文章
doi:10.1128/JVI.68.12.8437-8442.1994
更新日期:1994-12-01 00:00:00
abstract::Interferons inhibit the replication of vesicular stomatitis virus (VSV), but not of encephalomyocarditis virus (EMCV), in mouse JLSV-11 cells. We report the isolation of clonal derivatives from this cell line in which the replication of both viruses is impaired by interferons. These clones were selected from the paren...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.9.3175-3181.1988
更新日期:1988-09-01 00:00:00
abstract::In the course of our studies on oxidative stress as a component of pathological processes in humans, we showed that microintrusion into cells with microcapillary and ultramicroelectrochemical detection could mimic many types of mechanical intrusion leading to an instant (0.1 s) and high (some femtomoles) burst release...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.2.1447-1452.1999
更新日期:1999-02-01 00:00:00