Abstract:
:Hepatitis B virus (HBV) and woolly monkey hepatitis B virus (WMHBV) are primate hepadnaviruses that display restricted tissue and host tropisms. Hepatitis D virus (HDV) particles pseudotyped with HBV and WMHBV envelopes (HBV-HDV and WM-HDV) preferentially infect human and spider monkey hepatocytes, respectively, thereby confirming host range bias in vitro. The analysis of chimeric HBV and WMHBV large (L) envelope proteins suggests that the pre-S1 domain may comprise two regions that affect infectivity: one within the amino-terminal 40 amino acids of pre-S1 and one downstream of this region. In the present study, we further characterized the role of the amino terminus of pre-S1 in infectivity by examining the ability of synthetic peptides to competitively block HDV infection of primary human and spider monkey hepatocytes. A synthetic peptide representing the first 45 residues of the pre-S1 domain of the HBV L protein blocked infectivity of HBV-HDV and WM-HDV, with a requirement for myristylation of the amino terminal residue. Competition studies with truncated peptides suggested that pre-S1 residues 5 to 20 represent the minimal domain for inhibition of HDV infection and, thus, presumably represent the residues involved in virus-host receptor interaction. Recombinant pre-S1 proteins expressed in insect cells blocked infection with HBV-HDV and WM-HDV at a concentration of 1 nanomolar. The ability of short pre-S1 peptides to efficiently inhibit HDV infection suggests that they represent suitable ligands for identification of the HBV receptor and that a pre-S1 mimetic may represent a rational therapy for the treatment of HBV infection.
journal_name
J Viroljournal_title
Journal of virologyauthors
Barrera A,Guerra B,Notvall L,Lanford REdoi
10.1128/JVI.79.15.9786-9798.2005subject
Has Abstractpub_date
2005-08-01 00:00:00pages
9786-98issue
15eissn
0022-538Xissn
1098-5514pii
79/15/9786journal_volume
79pub_type
杂志文章abstract::The avian sarcoma and leukosis virus (ASLV) family of retroviruses contains five highly related envelope subgroups (A to E) thought to have evolved from a common viral ancestor in the chicken population. Three genetic loci in chickens determine the susceptibility or resistance of cells to infection by the subgroup A t...
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pub_type: 杂志文章
doi:10.1128/JVI.02206-07
更新日期:2008-03-01 00:00:00
abstract::We analyzed capsomeres of human papillomavirus type 16 (HPV16) consisting of the L1 major structural protein for their ability to trigger a cytotoxic T-cell (CTL) response. To this end, we immunized C57BL/6 mice and used the L1(165-173) peptide for ex vivo restimulation of splenocytes prior to analysis ((51)Cr release...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.8.4635-4645.2003
更新日期:2003-04-01 00:00:00
abstract::A herpes simplex virus type 1 (HSV-1) strain, B3, was found to have a short duplication on the left junction between the unique sequence (US) and the inverted repeat sequence (RS) in the S component of the genome DNA. A short region of RS contiguous to the left US-RS junction was duplicated in B3. Based on the nucleot...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.5.1877-1883.1989
更新日期:1989-05-01 00:00:00
abstract::Five regions of the human immunodeficiency virus type 1 (HIV-1) long terminal repeat (LTR) have been shown to be important in the transcriptional regulation of HIV in HeLa cells. These include the negative regulatory, enhancer, SP1, TATA, and TAR regions. Previous studies in which purified SP1 was used showed that the...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.6.2585-2591.1989
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abstract::Latency-associated transcript (LAT) promoter deletion mutants of herpes simplex virus type 1 have a reduced capacity to reactivate following adrenergic induction in the rabbit eye model. We have mapped a reactivation phenotype within LAT and describe the construction of recombinants in which poly(A) addition sites hav...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.4.2449-2459.1996
更新日期:1996-04-01 00:00:00
abstract::A promoter-trap retrovirus has been constructed in which a promoterless polyomavirus middle T antigen gene was inserted in the U3 region of the long terminal repeat of a replication-competent Moloney murine leukemia virus. The resulting virus, designated PyT, was used to infect mouse mammary glands in situ. As expecte...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.10.6810-6815.1996
更新日期:1996-10-01 00:00:00
abstract::The structures of DNAs present in various intracellular forms of simian virus 40 (SV40) nucleoprotein complexes were analyzed by micrococcal nuclease digestion. The results showed that the 70S SV40 chromatin was completely sensitive to nuclease digestion, whereas CsCl gradient-purified mature virion was completely res...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.44.2.603-609.1982
更新日期:1982-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1992-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:1980-06-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章,多中心研究
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更新日期:1995-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.8.2629-2635.1988
更新日期:1988-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.33.2.661-670.1980
更新日期:1980-02-01 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) immediate-early (IE) regulatory protein infected-cell protein 0 (ICP0) is a strong and global transactivator of both viral and cellular genes. In a previous study, we reported that ICP0 is highly phosphorylated and contains at least seven distinct phosphorylation signals as dete...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.2.1232-1243.2005
更新日期:2005-01-01 00:00:00
abstract::Dengue virus (DENV) and hepatitis C virus (HCV), members of the family Flaviviridae, are global human health concerns. As positive-strand RNA viruses, they each replicate in the cytoplasm of infected cells and induce distinct membranous replication compartments where most, if not all, steps of the viral life cycle occ...
journal_title:Journal of virology
pub_type: 杂志文章,评审
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更新日期:2014-06-01 00:00:00
abstract:UNLABELLED:Ebola virus (EBOV) causes hemorrhagic fevers with high mortality rates. During cellular entry, the virus is internalized by macropinocytosis and trafficked through endosomes until fusion between the viral and an endosomal membrane is triggered, releasing the RNA genome into the cytoplasm. We found that while...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03398-14
更新日期:2015-03-01 00:00:00
abstract::The RNA produced in vivo from bacteriophage phiX174 DNA has been analyzed by polyacrylamide-agarose gel electrophoresis and sedimentation in dimethyl sulfoxide gradients, and the results of Hayashi and Hayashi (1970) have been confirmed and extended. An efficient procedure for recovery of RNA from gels, followed by a ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.15.1.151-160.1975
更新日期:1975-01-01 00:00:00
abstract::Vpu is a 16-kDa membrane-associated phosphoprotein that is expressed from the same, singly spliced message as the human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein precursor, gp160. Previous studies suggest that Vpu functions in the late stages of viral replication, possibly in virus egression from the...
journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1979-06-01 00:00:00
abstract::Friend murine leukemia virus (F-MuLV) is a replication-competent, ecotropic, NB-tropic retrovirus which produces a rapidly fatal erythroleukemia in susceptible strains of mice. We previously molecularly cloned the entire F-MuLV genome. Transfection of this cloned DNA into NIH 3T3 mouse fibroblasts produces a virus wit...
journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2013-10-01 00:00:00
abstract::Human T-cell lymphotropic/leukemia virus type 1 (HTLV-1) transforms human T cells in vitro, and Tax, a potent transactivator of viral and cellular genes, plays a key role in cell immortalization. Tax activity is mediated by interaction with cellular transcription factors including members of the CREB/ATF family, the N...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.11.8852-8860.1998
更新日期:1998-11-01 00:00:00
abstract::Bluetongue virus (BTV), a member of the Reoviridae family, is an insect-borne animal pathogen. Virus release from infected cells is predominantly by cell lysis, but some BTV particles are also released from the plasma membrane. The nonstructural protein NS3 has been implicated in this process. Using alternate initiato...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02352-10
更新日期:2011-05-01 00:00:00
abstract::Simian virus 40 tumor (T) antigen, an established viral oncoprotein, causes alterations in cell growth control through interacting with, and altering the function of, cellular proteins. To examine the effects of T antigen on cell growth control, and to identify the cellular proteins with which it may functionally inte...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.2.756-763.1995
更新日期:1995-02-01 00:00:00
abstract::Mice homozygous for mutant alleles at the gray tremor (gt) locus develop a marked non-intention tremor beginning at 8 days of age. Most homozygous mice die by 3 months. Homozygotes exhibit intense vacuolation of the central nervous system gray matter and vacuolation and hypomyelination of some white matter tracts. Bas...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.3.2342-2345.1997
更新日期:1997-03-01 00:00:00
abstract::In our search for novel inhibitors of herpes simplex virus type 1 (HSV-1), a new class of thiourea inhibitors was discovered. N-(4-[3-(5-Chloro-2,4-dimethoxyphenyl)-thioureido]-phenyl)-acetamide and its 2-fluoro-benzamide derivative inhibited HSV-1 replication. HSV-2, human cytomegalovirus, and varicella-zoster virus ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.19.9054-9061.2000
更新日期:2000-10-01 00:00:00
abstract::The bovine leukemia virus (BLV) is an oncogenic retrovirus that is associated with the development of persistent lymphocytosis (PL) and lymphoma in cattle. While B lymphocytes have been shown to be the primary cellular target of BLV, recent studies suggest that some T lymphocytes and monocytes may be infected by the v...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.4.2178-2183.1996
更新日期:1996-04-01 00:00:00
abstract::The 5'-terminal nucleotide sequence from positions 50 to 130 of vesicular stomatitis virus RNA was determined indirectly by using a defective interfering particle RNA which contains covalently linked genomic minus and antigenomic plus sense RNAs. The last 18 nucleotides of the L gene coding for in the viral polymerase...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.34.2.550-559.1980
更新日期:1980-05-01 00:00:00
abstract::Today, global attention is focused on two influenza virus strains: the current pandemic strain, swine origin influenza virus (H1N1-2009), and the highly pathogenic avian influenza virus, H5N1. At present, the infection caused by the H1N1-2009 is moderate, with mortality rates of less <1%. In contrast, infection with t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02289-09
更新日期:2010-04-01 00:00:00
abstract::Structural proteins of temperature-sensitive (ts) mutants of vesicular stomatitis virus, Indiana serotype, were compared with those of wild-type and revertant virions by electrophoresis on polyacrylamide gels of partial digests with Staphylococcus aureus V8 protease. Mutants of complementation groups III (tsG31 and ts...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.37.1.248-255.1981
更新日期:1981-01-01 00:00:00