rdf:type |
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lifeskim:mentions |
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pubmed:issue |
2
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pubmed:dateCreated |
1989-10-10
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pubmed:abstractText |
The (Ca2+ + Mg2+)-ATPase from sarcoplasmic reticulum (SR) has been solubilized with 1-alkanoyl propanediol-3-phosphorylcholines with chainlengths ranging between 8 and 12 C atoms. A marked dependence of the ATPase activity upon the chainlength was found, indicating that alkyl chainlengths with 12 C atoms are necessary for retention of activity. Addition of poly(ethylene glycol) to the eluting buffers used for gel filtration of the ATPase-detergent micelles was found to increase the activity and the long-term stability significantly. In the presence of Ca2+, the elution volume indicated an ATPase dimer, whereas in the absence of Ca2+ the elution volume indicated a monomeric solution. The purity of the preparations after gel filtration was improved by subsequent chromatography with a hydroxyapatite column.
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0006-3002
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
4
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pubmed:volume |
984
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
193-9
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:2548624-Animals,
pubmed-meshheading:2548624-Ca(2+) Mg(2+)-ATPase,
pubmed-meshheading:2548624-Calcium-Transporting ATPases,
pubmed-meshheading:2548624-Chromatography,
pubmed-meshheading:2548624-Chromatography, Gel,
pubmed-meshheading:2548624-Detergents,
pubmed-meshheading:2548624-Dithiothreitol,
pubmed-meshheading:2548624-Durapatite,
pubmed-meshheading:2548624-Enzyme Stability,
pubmed-meshheading:2548624-Hydroxyapatites,
pubmed-meshheading:2548624-Kinetics,
pubmed-meshheading:2548624-Muscles,
pubmed-meshheading:2548624-Phosphatidylcholines,
pubmed-meshheading:2548624-Polyethylene Glycols,
pubmed-meshheading:2548624-Rabbits,
pubmed-meshheading:2548624-Sarcoplasmic Reticulum,
pubmed-meshheading:2548624-Solubility
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pubmed:year |
1989
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pubmed:articleTitle |
Stabilization of detergent-solubilized Ca2+-ATPase by poly(ethylene glycol).
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pubmed:affiliation |
Institut für Biophysik und Strahlenbiologie der Universität Freiburg, F.R.G.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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