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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1983-8-11
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pubmed:abstractText |
An enzyme capable of degrading type V collagen was found in the sputum of patients with chronic obstructive pulmonary disease (COPD). This enzyme was found in a latent form and was activated by 4-aminophenylmercuric acetate (APMA). Molecular sieve chromatography on Ultrogel AcA-34 and affinity chromatography on type V collagen-Sepharose were successful in separating type V from type I collagenolytic activity. The enzyme became active after affinity chromatography and no longer required activation with APMA to manifest activity. It was found to be a metalloproteinase by virtue of its inhibition by ethylene-diaminetetraacetic acid and phenanthroline but not by phenylmethanesulfonyl fluoride or N-ethylmaleimide. Because degradation of matrix proteins is felt to be important in the pathogenesis of COPD, it is possible that the selective degradation of type V collagen by this enzyme may play a role in the development of COPD.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/4-aminophenylmercuriacetate,
http://linkedlifedata.com/resource/pubmed/chemical/Collagen,
http://linkedlifedata.com/resource/pubmed/chemical/Endopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Metalloendopeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Microbial Collagenase,
http://linkedlifedata.com/resource/pubmed/chemical/Phenylmercuric Acetate
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0003-0805
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
166-9
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6307100-Chromatography, Affinity,
pubmed-meshheading:6307100-Chromatography, Gel,
pubmed-meshheading:6307100-Collagen,
pubmed-meshheading:6307100-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6307100-Endopeptidases,
pubmed-meshheading:6307100-Humans,
pubmed-meshheading:6307100-Lung Diseases, Obstructive,
pubmed-meshheading:6307100-Metalloendopeptidases,
pubmed-meshheading:6307100-Microbial Collagenase,
pubmed-meshheading:6307100-Phenylmercuric Acetate,
pubmed-meshheading:6307100-Sputum
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pubmed:year |
1983
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pubmed:articleTitle |
Identification of a type V collagen-degrading enzyme from human sputum.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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