Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-3-11
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
338
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
98-102
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Determination of the molecular mass of the native beta-cell sulfonylurea receptor.
pubmed:affiliation
Nuffield Department of Clinical Biochemistry, John Radcliffe Hospital, Headington, Oxford, UK.
pubmed:publicationType
Journal Article