Abstract:
:Recently it has been shown that kaposica, an immune evasion protein of Kaposi's sarcoma-associated herpesvirus, inactivates complement by acting on C3-convertases by accelerating their decay as well as by acting as a cofactor in factor I-mediated inactivation of their subunits C3b and C4b. Here, we have mapped the functional domains of kaposica. We show that SCRs 1 and 2 (SCRs 1-2) and 1-4 are essential for the classical and alternative pathway C3-convertase decay-accelerating activity (DAA), respectively, while the SCRs 2-3 are required for factor I cofactor activity (CFA) for C3b and C4b. SCR 3 and SCRs 1 and 4, however, contribute to optimal classical pathway DAA and C3b CFA, respectively. Binding data show that SCRs 1-4 and SCRs 1-2 are the smallest structural units required for measuring detectable binding to C3b and C4b, respectively. The heparin-binding site maps to SCR 1.
journal_name
J Viroljournal_title
Journal of virologyauthors
Mullick J,Singh AK,Panse Y,Yadav V,Bernet J,Sahu Adoi
10.1128/JVI.79.9.5850-5856.2005subject
Has Abstractpub_date
2005-05-01 00:00:00pages
5850-6issue
9eissn
0022-538Xissn
1098-5514pii
79/9/5850journal_volume
79pub_type
杂志文章abstract::We describe initial genetic and structural characterizations of HK97, a temperate bacteriophage of Escherichia coli. We isolated 28 amber mutants, characterized them with respect to what phage-related structures they make, and mapped many of them to restriction fragments of genomic DNA. Sodium dodecyl sulfate-polyacry...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.6.3227-3237.1991
更新日期:1991-06-01 00:00:00
abstract::The parameters governing the activity of the cloned T4 gene 23, which codes for the major T4 head protein, were analyzed. Suppressor-negative bacteria carrying wild-type T4 gene 23 cloned into plasmid pCR1 or pBR322 were infected with T4 gene 23 amber phage also carrying mutations in the following genes: (i) denA and ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.39.1.46-59.1981
更新日期:1981-07-01 00:00:00
abstract::The membrane glycoproteins Gn and Gc of Hantaan virus (HTNV) (family Bunyaviridae) are modified by N-linked glycosylation. The glycoproteins contain six potential sites for the attachment of N-linked oligosaccharides, five sites on Gn and one on Gc. The properties of the N-linked oligosaccharide chains were analyzed b...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.10.5414-5422.2004
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abstract::We previously reported that the cellular transcription factor hypoxia-inducible factor 1α (HIF-1α) binds a hypoxia response element (HRE) located within the promoter of Epstein-Barr virus's (EBV's) latent-lytic switch BZLF1 gene, Zp, inducing viral reactivation. In this study, EBV-infected cell lines derived from gast...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00722-20
更新日期:2020-08-31 00:00:00
abstract::A total of 103 amber mutants of coliphage P1 were tested for lysis of nonpermissive cells. Of these, 83 caused cell lysis at the normal lysis time and have defects in particle morphogenesis. Five amber mutants, with mutations in the same gene (gene 2), caused premature lysis and may have a defect in a lysis regulator....
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.35.2.519-530.1980
更新日期:1980-08-01 00:00:00
abstract::Since most human immunodeficiency virus (HIV) infections are initiated following mucosal exposure to the virus, the anatomic containment or abortion of an HIV infection is likely to require vaccine-elicited cellular immune responses in those mucosal sites. Studying vaccine-elicited mucosal immune responses has been pr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.22.11484-11490.2002
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abstract:UNLABELLED:Influenza A virus (IAV) entry is a multistep process that requires the interaction of the virus with numerous host factors. In this study, we demonstrate that prolidase (PEPD) is a cellular factor required by IAV for successful entry into target cells. PEPD was selected as a candidate during an entry screen ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00800-14
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abstract::10A1 murine leukemia virus can enter cells by using either of two different cell surface phosphate transport proteins, the gibbon ape leukemia virus receptor Glvr-1 (Pit-1) or the amphotropic retrovirus receptor Ram-1 (Pit-2). Glvr-1 and Ram-1 are widely expressed in different tissues, but the relative amounts of each...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.8.5564-5571.1996
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abstract::Infection of primary or secondary cultures of Chinese hamster embryo cells with simian virus 40 at a multiplicity of 20 to 50 induced synthesis of the virus-specific intranuclear T antigen in 80 to 90% of the cells within 48 to 72 hr. In the infected cultures, 30 to 50% more cells were recruited into deoxyribonucleic ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.6.6.738-749.1970
更新日期:1970-12-01 00:00:00
abstract::We showed previously that retrovirus vector particles can encapsidate RNAs without retroviral cis-acting sequences, that such RNAs are reverse transcribed in infected target cells, and that the cDNA copies are inserted into the host genome resulting in cDNA genes (R. Dornburg and H. M. Temin, Mol. Cell. Biol. 8:2328-2...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.2.886-889.1990
更新日期:1990-02-01 00:00:00
abstract::A recombinant capripoxvirus vaccine containing a cDNA of the peste-des-petits-ruminants virus (PPRV) fusion protein gene was constructed. A quick and efficient method was used to select a highly purified recombinant virus clone. A trial showed that a dose of this recombinant as low as 0.1 PFU protected goats against c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.2.1571-1577.2003
更新日期:2003-01-01 00:00:00
abstract::DDX21 regulates the biogenesis of rRNA and transcription of ribonucleoprotein genes. Recently, it has been reported that DDX21 regulates the growth of some RNA viruses through various mechanisms, such as inhibiting viral genome replication, suppressing virion assembly and release, and modulating antiviral immune respo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01222-19
更新日期:2019-11-26 00:00:00
abstract::Recently, we demonstrated that inverted repeat sequences inserted into first-generation adenovirus (Ad) vector genomes mediate precise genomic rearrangements resulting in vector genomes devoid of all viral genes that are efficiently packaged into functional Ad capsids. As a specific application of this finding, we gen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.11.9314-9324.1999
更新日期:1999-11-01 00:00:00
abstract::We have previously demonstrated that parainfluenza virus type 3 (PIV3), a significant respiratory pathogen, can markedly inhibit T-cell function in vitro. We now report that the virus potently induces interleukin-10 (IL-10) production by peripheral blood mononuclear cells. The IL-10 produced contributes to viral inhib...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.7.4845-4848.1996
更新日期:1996-07-01 00:00:00
abstract::We assessed the prediction that access of the viral NS1 protein to cellular PDZ domain protein networks enhances the virulence of highly pathogenic avian influenza A viruses. The NS1 proteins of most avian influenza viruses bear the C-terminal ligand sequence Glu-Ser-Glu-Val (ESEV) for PDZ domains present in multiple ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00610-10
更新日期:2010-10-01 00:00:00
abstract::Three fish retroviruses infecting walleyes constitute the recently recognized genus called epsilonretrovirus. The founding member of this group, walleye dermal sarcoma virus (WDSV), induces benign skin tumors in the infected fish and replicates near 4 degrees C. While the viral genomic sequence is known, biochemical c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.9.4341-4349.2002
更新日期:2002-05-01 00:00:00
abstract::The biological and genetic characteristics of murine leukemia viruses (MuLV) derived from leukemic and normal HRS/J mice were studied. T1-oligonucleotide fingerprinting and mapping of viral RNAs from unpassaged isolates revealed the presence of complex mixtures of viral genomes. MuLV that were purified by endpoint dil...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.50.2.397-407.1984
更新日期:1984-05-01 00:00:00
abstract:UNLABELLED:Hepatitis B virus (HBV)-specific cytotoxic T lymphocytes (CTLs) are critical in eliminating infection. We developed an animal model in which HBV-infected human hepatocytes are targeted by HBV-specific CTLs. After HBV inoculation in human hepatocyte-transplanted herpes simplex virus type-1 thymidine kinase-NO...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01126-15
更新日期:2015-10-01 00:00:00
abstract::Little is known about the mechanisms used by enveloped viruses to separate themselves from the cell surface at the final step of budding. However, small sequences in the Gag proteins of several retroviruses (L domains) have been implicated in this process. A sequence has been identified in the M proteins of rhabdoviru...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.4.3359-3365.1999
更新日期:1999-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.9.3371-3377.1988
更新日期:1988-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.4.5.567-573.1969
更新日期:1969-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.10.6021-6029.1995
更新日期:1995-10-01 00:00:00
abstract::Gammaretroviruses, such as murine leukemia virus (MLV), are functionally distinguished from lentiviruses, such as human immunodeficiency virus, by their inability to infect nondividing cells. Attempts to engineer this property into MLV have been hindered by an incomplete understanding of early events in the viral life...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00615-06
更新日期:2006-09-01 00:00:00
abstract::The tempo and intensity of retroviral neuropathogenesis are dependent on the capacity of the virus to invade the central nervous system. For murine leukemia viruses, an important determinant of neuroinvasiveness is the virus-encoded protein glycosylated Gag, the function of which in the virus life cycle is not known. ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.7.5619-5625.1998
更新日期:1998-07-01 00:00:00
abstract::Picornaviruses rearrange cellular membranes to form cytosolic replication sites. In the case of poliovirus and several other picornaviruses, these membranes are derived from subversion of the cellular autophagy pathway. We also reported observation of autophagosome-like structures during infection by two human rhinovi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00316-11
更新日期:2011-09-01 00:00:00
abstract::The S protein of bovine coronavirus (BCV) has been isolated from the viral membrane and purified by gradient centrifugation. Purified S protein was identified as a viral hemagglutinin. Inactivation of the cellular receptors by sialate 9-O-acetylesterase and generation of receptors by sialylation of erythrocytes with N...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.11.6232-6237.1991
更新日期:1991-11-01 00:00:00
abstract::Hepatitis C virus core protein forms the viral nucleocapsid and plays a critical role in the formation of infectious particles. In this study, we demonstrate that the highly conserved residue G33, located within domain 1 of the core protein, is important for the production of cell culture-infectious virus (HCVcc). Ala...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05452-11
更新日期:2012-01-01 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
pub_type: 杂志文章
doi:10.1128/JVI.66.12.7549-7554.1992
更新日期:1992-12-01 00:00:00
abstract::FeLV-FAIDS, an immunodeficiency-inducing isolate of feline leukemia virus, is composed of a pathogenic but replication-defective genome (molecular clone 61C) and a replication-competent but non-immunodeficiency-inducing variant genome (molecular clone 61E). The chimeric virus EECC, composed of the 5' gag-pol of 61E fu...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.9.4338-4345.1990
更新日期:1990-09-01 00:00:00
abstract::The level of RNase activity in human interferon preparations was examined. Although sequential purification of interferon resulted in nearly a 300-fold increase in specific activity, RNase-specific activity remained more or less constant. The implications of this finding for the analyses of the mode of action of inter...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.21.3.1247-1248.1977
更新日期:1977-03-01 00:00:00