Source:http://linkedlifedata.com/resource/pubmed/id/12642101
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2003-3-18
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pubmed:abstractText |
The X-ray crystal structure of Cowpea chlorotic mottle bromovirus (CCMV) revealed a unique tubular structure formed by the interaction of the N-termini from six coat protein subunits at each three-fold axis of the assembled virion. This structure, termed the beta-hexamer, consists of six short beta-strands. The beta-hexamer was postulated to play a critical role in the assembly and stability of the virion by stabilizing hexameric capsomers. Mutational analyses of the beta-hexamer structure, utilizing both in vitro and in vivo assembly assays, demonstrate that this structure is not required for virion formation devoid of nucleic acids in vitro or for RNA-containing virions in vivo. However, the beta-hexamer structure does contribute to virion stability in vitro and modulates disease expression in vivo. These results support a model for CCMV assembly through pentamer intermediates.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0042-6822
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
306
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
280-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:12642101-Base Sequence,
pubmed-meshheading:12642101-Bromovirus,
pubmed-meshheading:12642101-Capsid Proteins,
pubmed-meshheading:12642101-Cryoelectron Microscopy,
pubmed-meshheading:12642101-Crystallography, X-Ray,
pubmed-meshheading:12642101-DNA, Viral,
pubmed-meshheading:12642101-Escherichia coli,
pubmed-meshheading:12642101-Fabaceae,
pubmed-meshheading:12642101-Image Processing, Computer-Assisted,
pubmed-meshheading:12642101-Models, Molecular,
pubmed-meshheading:12642101-Plant Diseases,
pubmed-meshheading:12642101-Protein Structure, Secondary,
pubmed-meshheading:12642101-Protein Subunits,
pubmed-meshheading:12642101-Recombinant Proteins,
pubmed-meshheading:12642101-Sequence Deletion
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pubmed:year |
2003
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pubmed:articleTitle |
Effects of the cowpea chlorotic mottle bromovirus beta-hexamer structure on virion assembly.
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pubmed:affiliation |
Department of Plant Sciences Plant Pathology, Montana State University, Bozeman, MT 59717, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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