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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1990-2-9
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pubmed:abstractText |
A new and specific tissue kallikrein-binding protein was identified in mammalian serum and in secreted transformed-cell culture media (Chao et al., Biochem. J. 239: 325-331, 1986). We have designated this kallikrein-binding protein as "kallistatin". Human kallistatin has been purified from serum, using chromatographic steps including DEAE-Sephadex, hydroxylapatite, Cibacron blue-Sepharose, Sephacryl S200, and preparative polyacrylamide gel electrophoresis. The purified kallistatin consists of a single polypeptide chain with an apparent molecular weight of approximately 54 kDa and isoelectric point of approximately 5.0. Kallistatin was eluted as a single peak on reverse-phase HPLC. The purified kallistatin and 125I-labelled human tissue kallikrein form a approximately a 92 kDa SDS- and heat-stable complex. The complex formation is pH dependent and is inhibited by 0.1% (W/V) of deoxycholate or SDS but not by 0.5% (W/V) of Triton X-100, digitonin, Lubrol or CHAPS. A approximately 54 kDa protein was identified in partially purified kallistatin by polyclonal anti-kallistatin antibodies in Western blot analysis and by its binding to 125I-labelled-human tissue kallikrein in ligand blotting. The role of kallistatin in regulating tissue kallikrein activity and metabolism may now be evaluated.
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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 |
0065-2598
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
247B
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-8
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2558505-Blotting, Western,
pubmed-meshheading:2558505-Carrier Proteins,
pubmed-meshheading:2558505-Chromatography,
pubmed-meshheading:2558505-Chromatography, High Pressure Liquid,
pubmed-meshheading:2558505-Chromatography, Ion Exchange,
pubmed-meshheading:2558505-Durapatite,
pubmed-meshheading:2558505-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:2558505-Humans,
pubmed-meshheading:2558505-Hydroxyapatites,
pubmed-meshheading:2558505-Kallikreins,
pubmed-meshheading:2558505-Molecular Weight
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pubmed:year |
1989
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pubmed:articleTitle |
Human kallistatin, a new tissue kallikrein-binding protein: purification and characterization.
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pubmed:affiliation |
Department of Pharmacology, Medical University of South Carolina, Charleston 29425.
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pubmed:publicationType |
Journal Article
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