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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7-8
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pubmed:dateCreated |
1994-4-14
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pubmed:abstractText |
The calcium-dependent ATPase from sarcoplasmic reticulum of rabbit has been purified and reconstituted in dispersions containing pure phosphatidylcholines. Each phosphatidylcholine (PC) had palmitate (16:0) at the sn-1 position of glycerol and stearate (18:0), oleate (18:1), linoleate (18:2), arachidonate (20:4), or docosahexaenoate (22:6) at the sn-2 position. The activities and activation energies of the enzyme indicated that the best enzyme function occurred when 16:0-18:1 PC or 16:0-18:2 PC was the lipid in which the ATPase was embedded. Circular dichroism measurements made as a function of temperature suggested that the protein in 16:0-18:0 and 16:0-18:1 PC behaved most like sarcoplasmic reticulum or purified ATPase. The results suggest that there may be an optimal lipid environment for the ATPase which is provided by 16:0-18:1 PC and 16:0-18:2 PC, the two most common lipids of the sarcoplasmic reticulum.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcium-Transporting ATPases,
http://linkedlifedata.com/resource/pubmed/chemical/Fatty Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Lipids,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylcholines,
http://linkedlifedata.com/resource/pubmed/chemical/Solutions
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pubmed:status |
MEDLINE
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pubmed:issn |
0829-8211
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
381-9
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:8123254-Animals,
pubmed-meshheading:8123254-Calcium-Transporting ATPases,
pubmed-meshheading:8123254-Circular Dichroism,
pubmed-meshheading:8123254-Crystallization,
pubmed-meshheading:8123254-Enzyme Activation,
pubmed-meshheading:8123254-Fatty Acids,
pubmed-meshheading:8123254-Lipid Metabolism,
pubmed-meshheading:8123254-Lipids,
pubmed-meshheading:8123254-Muscles,
pubmed-meshheading:8123254-Phosphatidylcholines,
pubmed-meshheading:8123254-Rabbits,
pubmed-meshheading:8123254-Sarcoplasmic Reticulum,
pubmed-meshheading:8123254-Solutions,
pubmed-meshheading:8123254-Thermodynamics
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pubmed:articleTitle |
Reconstitution of rabbit sarcoplasmic reticulum calcium ATPase in a series of phosphatidylcholines containing a saturated and an unsaturated chain: suggestion of an optimal lipid environment.
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pubmed:affiliation |
Department of Biochemistry, Memorial University of Newfoundland, St. John's, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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