Antitumor Activity of Bacillus natto. IV. Purification and Properties of an Extracellular Protease from Bacillus natto KMD 1126
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概要
- 論文の詳細を見る
An alkaline protease (peptidylpeptide hydrolase, EC class 3.4.4.) of Bacillus natto KMD 1126 was purified by ammonium sulfate fractionation, DEAE cellulose chromatography, CM cellulose chromatography, and Sephadex G 100 gel filtration. It had a pH optimum over the range of 8.5-9.5 toward casein substrate. It was not inactivated by chelating agents or sulfhydryl reagents, but completely inactivated by incubation with DFP. From these results and the substrate specificity, this enzyme resembles to alkaline protease of Bacillus natto Ns. However, the two enzyme differ in specific activity and kinetic properties. This enzyme had not cytolytic activity on Ehrlich ascites carcinoma cells. However, when a mixture of surfactin, the protease, and EDTA was incubated with carcinoma cells, synergetic effect on the cytolysis was observed.
- 社団法人日本薬学会の論文
- 1973-03-25
著者
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亀田 幸雄
Faculty of Pharmaceutical Sciences, Kanazawa University
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松井 勝彦
Faculty of Pharmaceutical Sciences, Kanazawa University
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細谷 和良
Faculty Of Pharmaceutical Sciences Kanazawa University
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亀田 幸雄
School Of Pharmacy Hokuriku University
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松井 勝彦
Faculty Of Pharmacy Hokuriku University
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能村 章
Faculty of Pharmaceutical Sciences, Kanazawa University
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菅野 則子
Faculty of Pharmaceutical Sciences, Kanazawa University
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能村 章
Faculty Of Pharmaceutical Sciences Kanazawa University
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松井 勝彦
Department Of Biochemistry School Of Pharmacy Hokuriku University
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菅野 則子
Faculty Of Pharmaceutical Sciences Kanazawa University
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