基于同源模建方法对玉米夜蛾信息素结合蛋白三维结构的预测与分析  

Pheromone Binding Protein of Helicoverpa zea based on Homology Modeling

作　　者：孙浩[1] 赵雷修[1] 周凡蕊[1] 高慧[2] 

机构地区：[1]西南林业大学理学院,云南昆明650224 [2]云南中医学院,云南昆明650500

出　　处：《宁夏农林科技》2013年第7期37-39,52,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：西南林业大学重点科研基金项目(110932)

摘　　要：玉米夜蛾食性杂,危害作物多,分布范围广。该研究用同源模建的方法构建了玉米夜蛾信息素结合蛋白的三维结构。Procheck、Verify 3D、Errat、ProSa2003等程序的评价结果表明模建结构是可靠的。模建结构显示玉米夜蛾的信息素结合蛋白由6个α-螺旋和连接这些螺旋的回折构成,底物结合口袋成锥形。6个保守的半胱氨酸形成3个对结构起稳定作用的二硫键。Helicoverpa zea is a major agricultural pest. It feed on many different plants. It can be found in many regions ot the world. The research predicts the three dimension structure of pheromone binding protein of Helicoverpa zea by homology modeling method. The evaluation of the model by Procheck, Verify 3D, Errat and ProSa2003 indicates that the model is reliable. The pheromone binding protein of Helicoverpa zea consists of 6 α-helices and loops between them. 6 conserved cysteines form 3 disulfide bonds which can stabilize the structure.

关 键 词：信息素结合蛋白 玉米夜蛾 同源模建 

分 类 号：Q966[生物学—昆虫学]