Effects of Metal Ions on the Glycylglycine Dipeptidase-II

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  • Glycylglycine Dipeptidaseに対する金属イオンの影響-II
  • Glycylglycine Dipeptidase ニ タイスル キンゾク イオン ノ エイキョウ 2

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Abstract

Effect of metals on the activity of glycylglycine (GG) dipeptidase in pyloric caeca of bonito and yellow-tail was investigated. The results were shown as follows:<br> 1. The GG dipeptidase was greatly activated by Co++ and Mn++, as those from other sources, and also activated by Mg++ as the GG dipeptidase of tunny, while such an activation by Mg++ is not known for the enzyme from other sources.<br> 2. When Co++, Mn++ and Mg++ were 10-3 M in concei tration, the activity of GG dipeptidase was found to be at a maximum.<br> 3. The GG dipeptidase was inhibited by Zn++, Pb++, Cd++ and Ag+, but not by Sr++.<br> 4. The effect of Mg and Mn salts on the activity of GG dipeptidase was not affected by their negative radicals (SO4"or Cl').

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 21 (10), 1070-1075, 1956

    The Japanese Society of Fisheries Science

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