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  • Title: Some properties of two purified fibinolytic enzymes from Bacillus subtilis and B. polymyxa.
    Author: Fayek KI, El-Sayed ST.
    Journal: Z Allg Mikrobiol; 1980; 20(6):383-7. PubMed ID: 6775427.
    Abstract:
    Two fibrinolytic enzymes isolated from B. subtilis and from B. polymyxa were purified using a five step method. The pH optimum for the enzyme from B. subtilis was 7.2 and for the enzyme from B. polymyxa was 7.0. Both enzymes were activated by Cu++. The molecular weight of the first enzyme was 29,400 and that for the second enzyme was 18,000 on the basis of gel filtration on Sephadex G-100. The enzyme from B. subtilis has higher affinity to buffalo fibrin than towards human fibrin. The enzyme from B. polymyxa has higher affinity to human fibrin than towards buffalo fibrin.
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