秋水仙碱与胰蛋白酶相互作用的光谱性质研究
Natural Product Research and Development(2006)
Abstract
采用紫外光谱法和荧光光谱法研究了秋水仙碱与牛胰蛋白酶的相互作用。观测到秋水仙碱使胰蛋白酶的特征荧光峰猝灭。SternVolmer猝灭曲线显示,秋水仙碱对胰蛋白酶的荧光猝灭机制属于静态猝灭,猝灭常数Kq为6.60×1012(mol/L)1·s1;秋水仙碱与胰蛋白酶的结合常数为1.06×104L·mol1,结合位点数为1,作用力类型主要为疏水作用力。
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Key words
trypsin,colchicine,spectra properties
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