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首页> 外文期刊>Anticancer Research: International Journal of Cancer Research and Treatment >Cytolytic Activity and Molecular Feature of Cardiotoxin and Cardiotoxin-like Basic Protein: The Electrostatic Potential Field Is an Important Factor for Cell Lytic Activity
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Cytolytic Activity and Molecular Feature of Cardiotoxin and Cardiotoxin-like Basic Protein: The Electrostatic Potential Field Is an Important Factor for Cell Lytic Activity

机译:心肌毒素和心脏毒素样碱性蛋白质的细胞溶解活性和分子特征:静电势场是细胞裂解活动的重要因素

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Background/Aim: Cardiotoxin (CT) is a well-known cell lytic protein and has been purified from cobra venom. Cardiotoxin-like basic protein (CLBP) has two amino acid insertions and does not exhibit cell lytic activity. The molecular features of these CT family proteins were examined in the present study using molecular modeling and molecular simulation techniques. Materials and Methods: Molecular models of CT and CLBP were constructed based on the X-ray data of Naja mossambica mossambica CT VII4 (Protein Data Bank ID: 1CDT). The structural features of these models were examined using molecular orbital and electrostatic potential parameters. Results: The stereo-hydrophobicities and molecular torsions of CT and CLBP, which are indexes of structural features, were similar. Electrostatic potential fields (ESP) differed between CT and CLBP and this was considered one of the critical factors in molecular titer. Conclusion: The distribution of ESP fields may affect the cytolytic activity of the CT family.
机译:背景/目的:心脏毒素(CT)是一种众所周知的细胞裂解蛋白,已从Cocra Venom纯化。类似的碱性碱性蛋白质(CLBP)具有两个氨基酸插入,并且没有表现出细胞裂解活性。使用分子建模和分子模拟技术在本研究中检查了这些CT家族蛋白的分子特征。材料和方法:基于Naja Mossambica Mossambica CT VII4(蛋白质数据库ID:1CDT)的X射线数据构建CT和CLBP的分子模型。使用分子轨道和静电势参数检查这些模型的结构特征。结果:CT和CLBP的立体 - 疏水性和分子扭转,其是结构特征指标,是相似的。 CT和CLBP之间的静电势场(ESP)不同,这被认为是分子滴度中的关键因素之一。结论:ESP场的分布可能影响CT家族的细胞溶解活性。

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