杀线虫苏云金芽孢杆菌毒素Cry5Aa柔韧性分析  

Flexibility Analysis of Nematicidal Cry5Aa of Bacillus Thuringiensis

作　　者：赵新民[1] 彭晓赟[1] 刘淑云[1] 周攀登[1] 徐玲[1] 夏莉[1] 

机构地区：[1]湖南城市学院化学与环境工程学院,湖南益阳413000

出　　处：《广东化工》2014年第9期35-36,共2页Guangdong Chemical Industry

基　　金：湖南省自然科学基金项目(12JJ3021)

摘　　要：采用正则模式分析了杀线虫苏云金芽孢杆菌毒素Cry5Aa的柔韧性,计算了正则模式模拟毒素的主成分,B-因子、蛋白质铰链点和氨基酸残基相关性,结果表明,Cry5Aa结构域Ⅰα2螺旋一段插入序列具有较大的柔韧性,其运动与其他氨基酸残基的相关性较小。Normal mode analysis was used to study the flexibility of nematicidal Cry5Aaof Bacillus thuringiensis. The principal components, B-factors, hinge points and residue correlations were calculated and detected. Results showed that the special insertion structure of helixa2 of domain Ⅰ of the toxin has the higher flexibility. It has low motion correlation with the other residues of the toxin

关 键 词：线虫 苏云金芽孢杆菌 Cry5Aa 正则振动模式 柔韧性 

分 类 号：TQ[化学工程]