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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
15
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pubmed:dateCreated |
1983-9-9
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pubmed:abstractText |
An insulin-like growth factor II (IGF-II) receptor was purified from rat chondrosarcoma cells by Triton X-100 solubilization of a 100,000 X g membrane preparation and affinity chromatography on a multiplication-stimulating activity (MSA)-Sepharose column. Analysis of the purified receptor by sodium dodecyl sulfate-gel electrophoresis and silver staining showed a major band of Mr = 210,000 (Mr = 250,000 after reduction with dithiothreitol). When 125I-MSA was chemically cross-linked to the purified receptor and analyzed by sodium dodecyl sulfate-gel electrophoresis (with and without dithiothreitol) and autoradiography, the radioactive bands coincided with the Mr = 210,000 and 250,000 bands identified by silver staining. The purified receptor also appeared to contain an Mr = less than 68,000 species identified by silver staining in addition to the Mr = 250,000 binding component. IGF-I, IGF-II, and MSA-II inhibited binding of 125I-MSA to the purified receptor with the same relative potency as for binding to the intact chondrosarcoma cell (IGF-II greater than MSA-II greater than IGF-I), and insulin did not inhibit binding. The association constant (K alpha) for MSA-II binding to the purified receptor was 2 X 10(9) M-1. The purified receptor bound to concanavalin A-Sepharose and wheat germ lectin-Sepharose columns and was eluted with alpha-methyl-D-mannoside and N-acetyl-D-glucosamine, respectively, showing that the receptor is a glycoprotein.
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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/Cross-Linking Reagents,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin-Like Growth Factor II,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Somatomedin
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
10
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pubmed:volume |
258
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9033-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6307989-Animals,
pubmed-meshheading:6307989-Chromatography, Affinity,
pubmed-meshheading:6307989-Cross-Linking Reagents,
pubmed-meshheading:6307989-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6307989-Insulin-Like Growth Factor II,
pubmed-meshheading:6307989-Molecular Weight,
pubmed-meshheading:6307989-Osteosarcoma,
pubmed-meshheading:6307989-Peptides,
pubmed-meshheading:6307989-Rats,
pubmed-meshheading:6307989-Receptors, Cell Surface,
pubmed-meshheading:6307989-Receptors, Somatomedin
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pubmed:year |
1983
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pubmed:articleTitle |
Purification of an insulin-like growth factor II receptor from rat chondrosarcoma cells.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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