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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1993-9-27
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pubmed:abstractText |
The 26S protease complex was purified from chick skeletal muscle and shown to consist of unusually heterogeneous 21-140 kDa polypeptides, including the 21-32 kDa subunits of the 20S proteasome. Electron microscopic analysis revealed that the 26S complex may have a symmetric morphology with two large rectangular terminal domains attached to a thinner central 20S proteasome domain. The 26S complex was capable of degrading the peptide substrates of the 20S proteasome, including Suc-LLVY-AMC, N-Cbz-LLE-NA and N-Cbz-ARR-MNA. The two enzyme complexes showed similar sensitivities to various site-specific protease inhibitors, although their sensitivities to SDS were differed from each other. Immunoprecipitation with anti-26S complex antibody reduced peptide hydrolysis by the 20S proteasome. Similarly, anti-20S proteasome antibody inhibited peptide hydrolysis by the 26S complex. These results demonstrate that the 26S protease complex contains the 20S proteasome as a functional and structural component.
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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/Cysteine Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Multienzyme Complexes,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Protease Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Proteasome Endopeptidase Complex
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1039-9712
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
121-30
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8358324-Amino Acid Sequence,
pubmed-meshheading:8358324-Animals,
pubmed-meshheading:8358324-Chickens,
pubmed-meshheading:8358324-Cysteine Endopeptidases,
pubmed-meshheading:8358324-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:8358324-Endopeptidases,
pubmed-meshheading:8358324-Hydrolysis,
pubmed-meshheading:8358324-Microscopy, Electron,
pubmed-meshheading:8358324-Molecular Sequence Data,
pubmed-meshheading:8358324-Multienzyme Complexes,
pubmed-meshheading:8358324-Muscles,
pubmed-meshheading:8358324-Peptides,
pubmed-meshheading:8358324-Protease Inhibitors,
pubmed-meshheading:8358324-Proteasome Endopeptidase Complex
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pubmed:year |
1993
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pubmed:articleTitle |
Structure and properties of the 26S protease complex from chick skeletal muscle.
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pubmed:affiliation |
Department of Molecular Biology, College of Natural Sciences, Seoul National University, Korea.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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