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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-3-11
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pubmed:abstractText |
In the present study we have determined the molecular mass of the beta-cell sulfonylurea receptor in its native form by two different experimental approaches; gel filtration chromatography and radiation inactivation analysis. We first confirmed that the denatured photolabelled MIN6 beta-cell receptor had a molecular size of 141 +/- 2 kDa (mean +/- S.E., n = 8). Under non-denaturing conditions, using gel filtration chromatography, apparent molecular masses of 166 +/- 1 kDa (mean +/- S.E., n = 3) and 182 +/- 5 kDa (mean +/- S.E., n = 4) were determined for the photoaffinity-labelled and unlabelled sulfonylurea receptor, respectively. We conclude that in the solubilized state the receptor exists as a monomer. Radiation inactivation analysis indicated that the receptor has a target size of 250 +/- 30 kDa (mean +/- S.E., n = 7). This value for the molecular mass is larger than that obtained from SDS-PAGE following photolabelling of the receptor (141 kDa) suggesting that the beta-cell sulfonylurea receptor is composed of more than one subunit in the native membrane.
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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/ATP-Binding Cassette Transporters,
http://linkedlifedata.com/resource/pubmed/chemical/Affinity Labels,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium Channels, Inwardly...,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Drug,
http://linkedlifedata.com/resource/pubmed/chemical/sulfonylurea receptor
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
338
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
98-102
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8307165-ATP-Binding Cassette Transporters,
pubmed-meshheading:8307165-Affinity Labels,
pubmed-meshheading:8307165-Cell Membrane,
pubmed-meshheading:8307165-Cells, Cultured,
pubmed-meshheading:8307165-Chromatography, Gel,
pubmed-meshheading:8307165-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:8307165-Islets of Langerhans,
pubmed-meshheading:8307165-Molecular Weight,
pubmed-meshheading:8307165-Potassium Channels,
pubmed-meshheading:8307165-Potassium Channels, Inwardly Rectifying,
pubmed-meshheading:8307165-Receptors, Drug
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pubmed:year |
1994
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pubmed:articleTitle |
Determination of the molecular mass of the native beta-cell sulfonylurea receptor.
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pubmed:affiliation |
Nuffield Department of Clinical Biochemistry, John Radcliffe Hospital, Headington, Oxford, UK.
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pubmed:publicationType |
Journal Article
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