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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1991-8-6
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pubmed:abstractText |
Apolipoprotein A1 (apoA1) was labelled with the excess of 2,2,6,6-tetramethylpiperidinyl-N-oxyl-4-(2,4-dichloro-1,3,5- triazinyl-6)-amine at pH 9.8. The products, containing 7.2 (+/- 1) paramagnetic labels per 1 molecule of apoA1, showed spin-spin and dipole-dipole exchange interactions. The ESR spectra of the spin labelled A1 (at 77K) had d1/d values 0.76 (at pH 7.4), 0.59 (in 3 M NaCl), 0.55 (in 3 M guanidinium hydrochloride), 0.44 (in 40% 2-chloroethanol). Micellar complexes of spin labelled apoA1/DMPC (1 : 20 mol/mol and 1 : 190 mol/mol) and HDL containing spin labelled apoA1 were prepared. Comparison of ESR spectra at 77 K showed that apoA1 structure varies in the complexes with different stoichiometry and in spin labelled HDL. These data show the importance of hydrophobic protein-protein interactions for the structure of HDL and synthetic complexes of apoA1 with phosphatidyl choline.
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pubmed:language |
rus
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
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pubmed:issn |
0132-3423
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
17
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
60-5
|
pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1648355-Apolipoprotein A-I,
pubmed-meshheading:1648355-Apolipoproteins A,
pubmed-meshheading:1648355-Dimyristoylphosphatidylcholine,
pubmed-meshheading:1648355-Electron Spin Resonance Spectroscopy,
pubmed-meshheading:1648355-Humans,
pubmed-meshheading:1648355-Hydrogen-Ion Concentration,
pubmed-meshheading:1648355-Microscopy, Electron,
pubmed-meshheading:1648355-Temperature
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pubmed:year |
1991
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pubmed:articleTitle |
[Features of the structure of apolipoprotein A1 as an HDL and complexes with dimyristoylphosphatidylcholine. A method for low temperature ESR-spectroscopy].
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pubmed:publicationType |
Journal Article,
English Abstract
|