Abstract:
UNLABELLED:The immunoglobulin superfamily protein receptors for poliovirus, human rhinovirus, and coxsackievirus B (CVB) serve to bind the viruses to target cells and to facilitate the release of the virus genome by catalyzing the transition from the mature infectious virus to the A-particle uncoating intermediate. Receptor binding sites characterized by two equilibrium dissociation constants have been identified. The site with higher affinity is best observed at warmer temperatures and appears to correlate with the reversible conformational state in which the capsid is permeable to small molecules and peptides that are buried in the crystal structures are exposed. Measurements of CVB conversion to inactive particles over time in the presence of varied concentrations of soluble coxsackievirus and adenovirus receptor showed that the observed first-order rate constant varies with receptor concentration. The dose-response data, previously modeled as the sum of first-order reactions, have been used to evaluate models for the receptor-catalyzed conversion of CVB that include the high- and low-affinity binding sites associated with capsid breathing. Allosteric models wherein receptor binding shifts the equilibrium toward the open capsid conformation, in which the high-affinity binding site is available, best fit the data. IMPORTANCE:This paper compares models that relate the structural, mechanistic, and kinetic details of receptor-virus interactions known from previous work with human enteroviruses. New models are derived using recent results from receptor-catalyzed conversion of coxsackievirus B3 to non-infectious A-particles. Of those considered, the acceptable models include the capsid breathing cycle and two conformation-dependent receptor binding sites. The results indicate that the receptor enhancement of virus conversion to A-particles involves allostery through conformation selection.
journal_name
J Viroljournal_title
Journal of virologyauthors
Carson SDdoi
10.1128/JVI.01790-14subject
Has Abstractpub_date
2014-10-01 00:00:00pages
11568-75issue
19eissn
0022-538Xissn
1098-5514pii
JVI.01790-14journal_volume
88pub_type
杂志文章abstract::We isolated revertants of a polyomavirus whose origin of DNA replication contains a point mutation in the palindrome to which large T antigen binds. Four independent second-site revertants contain an Asp-286----Asn-286 substitution in large T antigen. This mutant large T antigen activates replication of DNAs containin...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.1.242-249.1989
更新日期:1989-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.10.2.318-319.1972
更新日期:1972-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.9.5882-5889.1994
更新日期:1994-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.16.8244-8251.2002
更新日期:2002-08-01 00:00:00
abstract::Our previous studies have argued persuasively that in murine sarcoma virus ts110 (MuSVts110) the gag and mos genes are fused out of frame due to a approximately 1.5-kilobase (kb) deletion of wild-type murine sarcoma virus 349 (MuSV-349) viral information. As a consequence of this deletion, infected cells grown at 39 d...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.53.2.624-633.1985
更新日期:1985-02-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.46.2.405-412.1983
更新日期:1983-05-01 00:00:00
abstract::A uniform nomenclature has been agreed upon for monoclonal antibodies directed against virus-coded proteins of simian virus 40 and polyoma virus. Blocks of numbers from PAb1 to PAb999 have been allocated to workers involved in the isolation of monoclonal antibodies of this type. The correspondence between PAb numbers ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.41.2.709-709.1982
更新日期:1982-02-01 00:00:00
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更新日期:2010-06-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/jvi.74.10.4721-4728.2000
更新日期:2000-05-01 00:00:00
abstract::Dengue virus (DENV) infection causes serious clinical symptoms, including dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). Vascular permeability change is the main feature of the diseases, and the abnormal expression of proinflammatory cytokines is the important cause of vascular permeability change. Ho...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00996-19
更新日期:2019-10-15 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.44.3.804-812.1982
更新日期:1982-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.57.1.229-236.1986
更新日期:1986-01-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02451-06
更新日期:2007-05-01 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:2006-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.75.17.8147-8157.2001
更新日期:2001-09-01 00:00:00
abstract::Positional homologs to the UL51 open reading frame of herpes simplex virus type 1 have been identified throughout the herpesvirus family. However, no respective protein has so far been described for any of the herpesviruses. With rabbit antisera directed against oligopeptides predicted to comprise antigenic regions of...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.7.5635-5638.1997
更新日期:1997-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.20.10995-11006.2004
更新日期:2004-10-01 00:00:00
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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
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2005-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00124-20
更新日期:2020-09-29 00:00:00
abstract::DNA vaccines have recently emerged at the forefront of approaches to harness the immune system in the prevention and treatment of viral infections, as well as the prevention and treatment of cancers. However, these vaccines suffer from limited efficacy since they often fail to produce significant antigen-specific CD8(...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01954-09
更新日期:2010-03-01 00:00:00
abstract:UNLABELLED:The RNA genome of respiratory syncytial virus (RSV) is constitutively encapsidated by the viral nucleoprotein N, thus forming a helical nucleocapsid. Polymerization of N along the genomic and antigenomic RNAs is concomitant to replication and requires the preservation of an unassembled monomeric nucleoprotei...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03666-14
更新日期:2015-04-01 00:00:00
abstract::A mutant of herpes simplex virus type 1 (HSV-1) in which glycoprotein H (gH) coding sequences were deleted and replaced by the Escherichia coli lacZ gene under the control of the human cytomegalovirus IE-1 gene promoter was constructed. The mutant was propagated in Vero cells which contained multiple copies of the HSV...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.1.341-348.1992
更新日期:1992-01-01 00:00:00
abstract::Previous findings of low levels of reverse transcriptase (RT) activity in chick cell-derived measles and mumps vaccines showed this activity to be associated with virus particles containing RNA of both subgroup E endogenous avian leukosis viruses (ALV-E) and endogenous avian viruses (EAV). These particles originate fr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.75.8.3605-3612.2001
更新日期:2001-04-01 00:00:00
abstract::The coding capacity of human cytomegalovirus (HCMV) for glycoproteins by far exceeds that of other herpesviruses. Few of these proteins have been characterized so far. We have investigated the gene product of reading frame UL132. The putative protein product of UL132 is a glycoprotein with a theoretical mass of 29.8 k...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.18.11837-11847.2005
更新日期:2005-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.10.5735-5743.1992
更新日期:1992-10-01 00:00:00
abstract::Four mutants of the virulent Mahoney strain of poliovirus were generated by introducing mutations in nucleotides (nt) 128 to 134 of the genome, a region that contains a part of the stem-loop II (SLII) structure located within the internal ribosomal entry site (IRES; nt 120 to 590) (K. Shiroki, T. Ishii, T. Aoki, Y. Ot...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.3.2398-2405.1998
更新日期:1998-03-01 00:00:00
abstract::Severe complications of Zika virus (ZIKV) infection might be caused by inflammation, but how ZIKV induces proinflammatory cytokines is not understood. In this study, we show opposite regulatory effects of the ZIKV NS5 protein on interferon (IFN) signaling. Whereas ZIKV and its NS5 protein were potent suppressors of ty...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00163-17
更新日期:2017-06-26 00:00:00