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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1979-5-16
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pubmed:abstractText |
Single bilayer vesicles of dimyristoylphosphatidylcholine have been investigated by small-angle X-ray scattering at 28 degrees C. The results indicate that these vesicles are hollow spherical shell structures with an outer radius of approximately 12 nm and a molecular weight of (3.2 +/- 0.5) X 10(6). The shell was found to be 4.4 +/- 0.2 nm thick with a cross-sectional electron-density profile characteristic for a single phospholipid bilayer. Upon interaction of these vesicles with apolipoprotein C-III from human very low density lipoproteins at a protein/lipid ratio greater than 0.08 (g/g), a complex containing 0.25 g of protein/g of lipid, with molecular weight of (3.9 +/- 0.4) X 10(5), is formed. The shape analysis indicates a highly asymmetric particle with an internal partition of low and high electron density resembling that produced by a bilayer structure. Model calculations and curve-fitting procedures show good agreement between the experimental scattering curve and that computed for an oblate ellipsoidal structure with dimensions of 17 X 17 X 5 nm and a 1 nm thick shell of high electron density surrounding the core of low electron density.
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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 |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
9
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pubmed:volume |
18
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
164-71
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:217404-Apolipoproteins,
pubmed-meshheading:217404-Humans,
pubmed-meshheading:217404-Lipoproteins, VLDL,
pubmed-meshheading:217404-Mathematics,
pubmed-meshheading:217404-Membranes, Artificial,
pubmed-meshheading:217404-Microscopy, Electron,
pubmed-meshheading:217404-Molecular Conformation,
pubmed-meshheading:217404-Phosphatidylcholines,
pubmed-meshheading:217404-Protein Binding,
pubmed-meshheading:217404-Protein Conformation,
pubmed-meshheading:217404-Scattering, Radiation,
pubmed-meshheading:217404-X-Rays
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pubmed:year |
1979
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pubmed:articleTitle |
Structure of the dimyristoylphosphatidylcholine vesicle and the complex formed by its interaction with apolipoprotein C-III: X-ray small-angle scattering studies.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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