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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1982-12-2
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pubmed:abstractText |
Clathrin-associated proteins were separated from clathrin under various clathrin-denaturing conditions, i.e. heating, freezing and isoelectric precipitation. The proteins retained biological activity; they were purified further by affinity chromatography on calmodulin-conjugated CNBr-Sepharose 4B and used for antibody purification. The affinity-purified anti-(clathrin-associated proteins) antibodies gave a fluorescent dotted pattern in cultured fibroblasts consistent with the known distribution of clathrin. Chemical cross-linking of pure clathrin-associated proteins indicated that these polypeptides exist as monomers in solution, each possessing Ca2+-dependent affinity for calmodulin to which they bind in a 1:1 molar ratio. Chymotryptic treatment of coated vesicles selectively cleaved the clathrin-associated proteins into a 15 000-18 000-Mr doublet polypeptide. These subfragments retained their Ca2+-dependent affinity for calmodulin. Our results support a regulatory role for clathrin-associated proteins in clathrin assemblies.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
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pubmed:issn |
0014-2956
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
125
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
463-70
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7117245-Calcium,
pubmed-meshheading:7117245-Clathrin,
pubmed-meshheading:7117245-Cross-Linking Reagents,
pubmed-meshheading:7117245-Immunochemistry,
pubmed-meshheading:7117245-Membrane Proteins,
pubmed-meshheading:7117245-Protein Denaturation,
pubmed-meshheading:7117245-Spectrometry, Fluorescence
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pubmed:year |
1982
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pubmed:articleTitle |
Isolation and preliminary characterization of clathrin-associated proteins.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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