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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1979-7-28
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pubmed:abstractText |
A procedure is described which permits the rapid isolation of large amounts of elastase and cathepsin G from purulent sputum. This procedure involves: (1) digestion of sputum with DNase, (2) extraction of the insoluble residue that remains with 1 M NaCl, pH 8, (3) affinity chromatography on Sepharose-bound Trasylol, and (4) separation of the two enzymes by chromatogrphy on CM-Sephadex. Starting with 500 g of sputum it was possible to isolate 175 mg of each of these two enzymes within 7 to 10 days. Active site titration indicated both enzymes to be at least 97% pure. Disc gel electrophoresis in the presence and absence of SDS and amino acid sequence of the N-terminal region support the conclusion that the elastase and cathepsin G isolated from sputum are identical to the same enzymes isolated directly from the leukocytes of human blood.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0032-7484
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
15-31
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:441048-Amino Acid Sequence,
pubmed-meshheading:441048-Binding Sites,
pubmed-meshheading:441048-Cathepsins,
pubmed-meshheading:441048-Chromatography, Affinity,
pubmed-meshheading:441048-Chromatography, Gel,
pubmed-meshheading:441048-Cystic Fibrosis,
pubmed-meshheading:441048-Deoxyribonucleases,
pubmed-meshheading:441048-Electrophoresis, Disc,
pubmed-meshheading:441048-Humans,
pubmed-meshheading:441048-Leukocytes,
pubmed-meshheading:441048-Pancreatic Elastase,
pubmed-meshheading:441048-Sputum,
pubmed-meshheading:441048-Suppuration
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pubmed:year |
1979
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pubmed:articleTitle |
A rapid procedure for the large scale purification of elastase and cathepsin G from human sputum.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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