Source:http://linkedlifedata.com/resource/pubmed/id/17078073
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2006-12-13
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pubmed:abstractText |
Electron microscopy and infrared and Raman spectroscopy have been used here to study the morphology, size distribution, secondary and tertiary structures of protein particles assembled from a truncated hepatitis C virus (HCV) core protein covering the first 120 aa. Particles of pure protein, having similar morphology and size distribution of those of nucleocapsids found in sera from HCV-infected patients, have been visualized for the first time. The secondary structure of these protein particles involve beta-sheet enrichment in relation to its protein monomer. Tertiary/quaternary structure has also been studied using the dynamics of H/D exchange. With this aim infrared spectra were measured as a function of H/D exchange time and subsequently analyzed by principal component analysis and two-dimensional correlation spectroscopy. Temporal dynamics of exchange for these protein particles were as follows: arginine residues exchanged first, followed by turn and unordered structures, followed by beta-sheets which may act as linkers of protein monomers.
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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 |
Jan
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pubmed:issn |
1097-0134
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pubmed:author | |
pubmed:copyrightInfo |
(c) 2006 Wiley-Liss, Inc.
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pubmed:issnType |
Electronic
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pubmed:day |
1
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pubmed:volume |
66
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
110-7
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pubmed:meshHeading |
pubmed-meshheading:17078073-Arginine,
pubmed-meshheading:17078073-Circular Dichroism,
pubmed-meshheading:17078073-Deuterium Exchange Measurement,
pubmed-meshheading:17078073-Dimerization,
pubmed-meshheading:17078073-Microscopy, Electron,
pubmed-meshheading:17078073-Models, Molecular,
pubmed-meshheading:17078073-Nucleocapsid,
pubmed-meshheading:17078073-Protein Structure, Secondary,
pubmed-meshheading:17078073-Protein Structure, Tertiary,
pubmed-meshheading:17078073-Recombinant Proteins,
pubmed-meshheading:17078073-Spectroscopy, Fourier Transform Infrared,
pubmed-meshheading:17078073-Spectrum Analysis, Raman,
pubmed-meshheading:17078073-Viral Core Proteins,
pubmed-meshheading:17078073-Virus Assembly
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pubmed:year |
2007
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pubmed:articleTitle |
Spectroscopic study of conformational changes accompanying self-assembly of HCV core protein.
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pubmed:affiliation |
Instituto de Estructura de la Materia (CSIC), Serrano 121, 28006 Madrid, Spain.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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