Purification of epidermal plasminogen activator inhibitor
- 2 November 1986
- journal article
- Published by Wiley in FEBS Letters
- Vol. 208 (2) , 273-277
- https://doi.org/10.1016/0014-5793(86)81031-6
Abstract
A plasminogen activator inhibitor was purified from human cornified cell extract by DEAE-Sepharose, Sephacryl S-200, and high-performance liquid chromatographies on hydroxyapatite HPHT and anion-exchanger Mono Q at pH 7.2 and 8.0. The purified inhibitor showed Mr 43,000 and pI 5.2 50% inhibition of fibrinolytic activity (1.5 IU) of urokinase and tissue-type plasminogen activator was attained by 0.60 ng and 11.0 ng purified inhibitor, respectively. Synthetic substrate assay demonstrated slow tight-binding inhibition to both urokinase and tissue-type plasminogen activator. The inhibitor did not inactivate plasmin, thrombin, glandular kallikrein or trypsin.Keywords
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