Source:http://linkedlifedata.com/resource/pubmed/id/12470664
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2002-12-9
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pubmed:abstractText |
Recent studies have shown that paramyxovirus might adopt a similar molecular mechanism of virus entry and fusion in which the attachment glycoprotein binds receptor/s and triggers the conformational changes of the fusion protein. There are two conserved regions of heptad repeat (HR1 and HR2) in the fusion protein and they were shown with fusion-inhibition effects in many paramyxoviruses, including measles virus. They also appear to show characteristic structure in the fusion core: the HR1/HR2 forms stable six-helix coiled-coil centered by HR1 and is surrounded by HR2 (trimer of HR1/HR2), which represents the post-fusion conformational structure. In this study, we expressed the HR1 and HR2 of measles virus fusion protein as a single chain (named 2-Helix) and subsequently tested its formation of trimer. Indeed, the results do show that the HR1 and HR2 interact with each other and form stable six-helix coiled-coil bundle. This is the first member in genus Morbillivirus of family Paramyxoviridae to be confirmed with this characteristic structure and provides the basis for the HR2-inhibition effects on virus fusion/entry for measles virus.
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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 |
Dec
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
299
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
897-902
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:12470664-Amino Acid Sequence,
pubmed-meshheading:12470664-Circular Dichroism,
pubmed-meshheading:12470664-Measles virus,
pubmed-meshheading:12470664-Membrane Fusion,
pubmed-meshheading:12470664-Molecular Sequence Data,
pubmed-meshheading:12470664-Protein Structure, Quaternary,
pubmed-meshheading:12470664-Protein Structure, Secondary,
pubmed-meshheading:12470664-Repetitive Sequences, Amino Acid,
pubmed-meshheading:12470664-Sequence Alignment,
pubmed-meshheading:12470664-Viral Fusion Proteins
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pubmed:year |
2002
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pubmed:articleTitle |
The fusion protein core of measles virus forms stable coiled-coil trimer.
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pubmed:affiliation |
Department of Molecular Virology, Institute of Microbiology, Chinese Academy of Sciences, Zhongguancun Beiyitiao, Beijing 100080, China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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