Abstract:
:Identification of cell surface viral binding proteins is important for understanding viral attachment and internalization. We have fused the pre-S domain of the duck hepatitis B virus (DHBV) large envelope protein to glutathione S-transferase and demonstrated a 170-kDa binding protein (p170) in [35S]methionine-labeled duck hepatocyte lysates. This glycoprotein was found abundantly in all extrahepatic tissues infectible with DHBV and in some noninfectible tissues, though it is not secreted into the blood. The interaction of pre-S fusion protein with p170 was competitively inhibited by wild-type DHBV in a dose-dependent manner. In addition, infection of hepatocytes with DHBV blocked the binding of pre-S fusion protein to p170, which suggests a biological role for p170 during natural infection. The p170 binding site was mapped to a conserved sequence of 16 amino acid residues (positions 87 to 102) by using 24 pre-S deletion mutants; this binding domain coincides with a major virus-neutralizing antibody epitope. Furthermore, site-directed mutagenesis revealed that an arginine residue at position 97 is critical for p170 binding. p170 was purified by a combination of ion-exchange and affinity chromatographies, and four peptide sequences were obtained. Two peptides showed significant similarities to human and animal carboxypeptides H, M, and N. Taken together, these results raise the possibility that the p170 binding protein is important during the replication cycle of DHBV.
journal_name
J Viroljournal_title
Journal of virologyauthors
Tong S,Li J,Wands JRdoi
10.1128/JVI.69.11.7106-7112.1995subject
Has Abstractpub_date
1995-11-01 00:00:00pages
7106-12issue
11eissn
0022-538Xissn
1098-5514journal_volume
69pub_type
杂志文章abstract::The major envelope glycoprotein of bovine leukemia virus was isolated by lectin-bound Sepharose and DEAE-cellulose column chromatography. This protein was shown to have a molecular weight of about 41,000 and to lack detectable immunological cross-reactivity with glycoproteins of other oncornaviruses. Sera obtained fro...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.23.2.443-447.1977
更新日期:1977-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.47.2.354-362.1983
更新日期:1983-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.21.1.408-410.1977
更新日期:1977-01-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02322-09
更新日期:2010-03-01 00:00:00
abstract::Antigens derived from host cells are detectable in the envelope of human immunodeficiency virus type 1 (HIV-1) and result in a distinctive viral phenotype reflecting that of the host cell. An immunomagnetic capture assay targeting discriminatory host proteins was developed to differentiate between HIV-1 derived from m...
journal_title:Journal of virology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Bovine viral diarrhea virus (BVDV), a pestivirus of the Flaviviridae family, is an economically important cattle pathogen with a worldwide distribution. Both noncytopathic (ncp) and cytopathic (cp) biotypes of BVDV can be isolated from persistently infected cattle suffering from the lethal mucosal disease. The cp biot...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.10.4692-4698.2001
更新日期:2001-05-01 00:00:00
abstract::Knowledge of the mechanisms of virus dissemination in acute measles is cursory, but cells of the monocyte/macrophage (MM) lineage appear to be early targets. We characterized the dissemination of the Edmonston B vaccine strain of measles virus (MV-Ed) in peripheral blood mononuclear cells (PBMC) of two mouse strains e...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.7.3343-3351.2001
更新日期:2001-04-01 00:00:00
abstract::Although picornavirus RNA genomes contain a 3'-terminal poly(A) tract that is critical for their replication, the impact of encephalomyocarditis virus (EMCV) infection on the host poly(A)-binding protein (PABP) remains unknown. Here, we establish that EMCV infection stimulates site-specific PABP proteolysis, resulting...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00896-12
更新日期:2012-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.10.4448-4455.2000
更新日期:2000-05-01 00:00:00
abstract::Kaposi's sarcoma-associated herpesvirus (KSHV) is the infectious cause of Kaposi's sarcoma, primary effusion lymphoma, and plasmablastic multicentric Castleman's disease. STAT3 has been shown to be important for the maintenance of primary effusion lymphoma cells in culture and is chronically activated in many tumor ce...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01769-06
更新日期:2007-03-01 00:00:00
abstract::The influenza A virus NS1 protein contains a conserved 4-amino-acid-residue PDZ-ligand binding motif (PBM) at the carboxyl terminus that can function as a virulence determinant by targeting cellular PDZ proteins. The NS1 proteins from avian and human viral isolates have consensus PBM sequences ESEV and RSKV, respectiv...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05070-11
更新日期:2011-10-01 00:00:00
abstract::We tested whether the selection of target sites can be manipulated by fusing retroviral integrase with a sequence-specific DNA-binding protein. A hybrid protein that has the Escherichia coli LexA protein fused to the C terminus of the human immunodeficiency virus type 1 integrase was constructed. The fusion protein, I...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.1.37-46.1996
更新日期:1996-01-01 00:00:00
abstract::The human immunodeficiency virus type 1 Vpu protein is a 16-kDa phosphoprotein which enhances the efficiency of virion production and induces rapid degradation of CD4, the cellular receptor for human immunodeficiency virus. The topology of membrane-inserted Vpu was investigated by using in vitro-synthesized Vpu cotran...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.8.5056-5061.1993
更新日期:1993-08-01 00:00:00
abstract::The open reading frame III of Borna disease virus (BDV) codes for a protein with a mass of 16 kDa, named p16 or BDV-M. p16 was described as an N-glycosylated protein in several previous publications and therefore was termed gp18, although the amino acid sequence of p16 does not contain any regular consensus sequence f...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.24.12098-12104.2001
更新日期:2001-12-01 00:00:00
abstract::Previous studies using wild-type Encephalomyocarditis virus (EMCV) and Mengo virus, which have long poly(C) tracts (61 to 146 C's) at the 5' nontranslated region of the genome, and variants of these viruses genetically engineered to truncate or substitute the poly(C) tracts have produced conflicting data on the role o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.17.9136-9146.2003
更新日期:2003-09-01 00:00:00
abstract::The membrane-proximal region of the human immunodeficiency virus type 1 (HIV-1) transmembrane protein (TM) is critical for envelope (Env)-mediated membrane fusion and contains the target for broadly reactive neutralizing antibody 2F5. It has been proposed that 2F5 neutralization might involve interaction of its long, ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.5.2539-2547.2006
更新日期:2006-03-01 00:00:00
abstract::The DA strain and other members of the TO subgroup of Theiler's murine encephalomyelitis virus (TMEV) induce an early transient subclinical neuronal disease followed by a chronic progressive inflammatory demyelination, with persistence of the virus in the central nervous system (CNS) for the life of the mouse. Althoug...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00178-11
更新日期:2011-09-01 00:00:00
abstract::Mammalian reoviruses are internalized into cells by receptor-mediated endocytosis. Within the endocytic compartment, the viral outer capsid undergoes acid-dependent proteolysis resulting in removal of the sigma3 protein and proteolytic cleavage of the mu1/mu1C protein. Ammonium chloride (AC) is a weak base that blocks...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.2.671-681.2006
更新日期:2006-01-01 00:00:00
abstract:UNLABELLED:Paramyxoviruses and other negative-strand RNA viruses encode matrix proteins that coordinate the virus assembly process. The matrix proteins link the viral glycoproteins and the viral ribonucleoproteins at virus assembly sites and often recruit host machinery that facilitates the budding process. Using a co-...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02103-14
更新日期:2014-11-01 00:00:00
abstract::Crimean-Congo hemorrhagic fever virus (CCHFV), a member of the genus Nairovirus of the family Bunyaviridae, causes severe disease with high rates of mortality in humans. The CCHFV M RNA segment encodes the virus glycoproteins G(N) and G(C). To understand the processing and intracellular localization of the CCHFV glyco...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.10.6152-6161.2005
更新日期:2005-05-01 00:00:00
abstract::Engineered alphavirus vectors expressing reporters of infection have been used for a number of years due to their relatively low costs for analysis of virus replication and the capacity to utilize imaging systems for longitudinal measurements of growth within single animals. In general, these vectors have been derived...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02990-13
更新日期:2014-02-01 00:00:00
abstract::The RNA of infectious bursal disease virus was reexamined in a detailed analysis. It could be established that its genome consists of two segments of double-stranded RNA. The RNA is RNase resistant and has a sedimentation coefficient of 14S and a buoyant density of 1.62 g/ml. The purine/pyrimidine ratio is nearly 1; t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.31.3.584-589.1979
更新日期:1979-09-01 00:00:00
abstract::The human papillomavirus (HPV) minor capsid protein L2 plays important roles in the generation of infectious viral particles and in the initial steps of infection. Here we show that HPV-16 L2 protein is sumoylated at lysine 35 and that sumoylation affects its stability. Interestingly, the sumoylated form of L2 cannot ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01269-10
更新日期:2010-11-01 00:00:00
abstract::The human cytomegalovirus UL47 open reading frame encodes a 110-kDa protein that is a component of the virion tegument. We have constructed a cytomegalovirus mutant, ADsubUL47, in which the central portion of the UL47 open reading frame has been replaced by two marker genes. The mutant replicated to titers 100-fold lo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.3.1043-1050.2002
更新日期:2002-02-01 00:00:00
abstract::Herpes simplex virus (HSV) is an important human pathogen with a high worldwide seroprevalence. HSV enters epithelial cells, the primary site of infection, by a low-pH pathway. HSV glycoprotein B (gB) undergoes low pH-induced conformational changes, which are thought to drive membrane fusion. When neutralized back to ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01034-18
更新日期:2018-08-16 00:00:00
abstract::Vaccine-elicited immunoglobulin G (IgG) has been shown to be important for protection against simian-human immunodeficiency virus (SHIV) infection in rhesus monkeys. However, it remains unclear whether vaccine-elicited IgA responses are beneficial or detrimental for protection. In this study, we evaluated the kinetics...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00537-18
更新日期:2018-07-17 00:00:00
abstract::The gastrointestinal tract is constantly exposed to a variety of potentially invasive bacteria and viruses. The first line of defense of the host against these pathogens is the intestinal mucosal surface, which consists of epithelial cells, intraepithelial lymphocytes (IELs), mucus, and secretory immunoglobulins. Litt...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.8.3507-3512.1989
更新日期:1989-08-01 00:00:00
abstract::Influenza virus hemagglutinin consists of a highly variable and immunodominant head domain and a more conserved but immunosubdominant stalk domain. We introduced seven N-linked glycosylation sites in the hemagglutinin head domain to shield the immunodominant antigenic sites. The hyperglycosylated hemagglutinin enhance...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02608-13
更新日期:2014-01-01 00:00:00
abstract::Measles virus (MeV) is an enveloped RNA virus bearing two envelope glycoproteins, the hemagglutinin (H) and fusion (F) proteins. Upon receptor binding, the H protein triggers conformational changes of the F protein, causing membrane fusion and subsequent virus entry. MeV may persist in the brain, infecting neurons and...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01727-19
更新日期:2020-01-06 00:00:00