FIELD: medicine, biochemistry. SUBSTANCE: invention relates to new thrombolytic enzyme destabilase, endo-ε(γ-Glu)-Lys-isopeptidase, showing exo-ε(γ-Glu)-Lys-isopeptidase and amidolytic activity. Enzyme is obtained from leech of family Hirudinidae. Leech extract is subjected for affinity chromatography, purified additionally by ion-exchange chromatography, desalted by gel-filtration and protein of molecular mass 126 000 ± 300 Da is collected. Partial amino acid sequence of this enzyme is identified. Product can be used in medicine for thrombosis therapy and in experimental medicine. EFFECT: new enzyme indicated above, improved method of preparing. 2 dwg
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Authors
Dates
1998-06-10—Published
1994-12-23—Filed