Studies on an <i>in Vitro</i> Catalase Inhibitor from Silkworm Blood:II. Fractionation of the Inhibitor

J-STAGE
  • OHOKA TADAKAZ
    Department of Biology, Faculty of Science, Tokyo Metropolitan University

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1. A catalase inhibitor was isolated from silkworm blood plasma in a partially purified form, its specific activity being raised to about 500-fold as compared with the starting material.<br> 2. The inhibiting action of the inhibitor was found to be intensified by preincubating the enzyme in the presence of nitrate, nitrite or chloride.<br> 3. The increase in catalatic activity, ob-served on dilution of silkworm blood plasma, was explained by this effect of the anions present in the blood plasma.<br> The author wishes to express his thanks to Prof. A. Takamiya of the Tokyo University for valuable advices on this work.

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