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基于螺旋对序列分类的相互作用TM螺旋对三维建模

Towards 3D modeling of Interacting TM Helix Pairs Based on Classification of Helix Pair Sequence
课程网址: http://videolectures.net/prib2010_dyrka_t3mi/  
主讲教师: Witold Dyrka
开课单位: 华劳科技大学
开课时间: 2010-10-14
课程语种: 英语
中文简介:
跨膜蛋白的空间结构很难通过实验或计算方法获得。螺旋螺旋构象的识别是建模中必不可少的,螺旋构象提供了许多跨膜蛋白的结构骨架。跨膜蛋白中的大多数螺旋相互作用可根据其3D形状准确地分为几类。我们提出了一种随机上下文无关文法框架,结合了进化算法,以表示这些类的序列级特征。使用独立的测试集对描述符进行了测试,通常可达到ROC曲线下的面积0.60 0.70;有些达到了0.77。
课程简介: Spatial structures of transmembrane proteins are difficult to obtain either experimentally or by computational methods. Recognition of helix-helix contacts conformations, which provide structural skeleton of many transmembrane proteins, is essential in the modeling. Majority of helix-helix interactions in transmembrane proteins can be accurately clustered into a few classes on the basis of their 3D shape. We propose a Stochastic Context Free Grammars framework, combined with evolutionary algorithm, to represent sequence level features of these classes. The descriptors were tested using independent test sets and typically achieved the areas under ROC curves 0.60-0.70; some reached 0.77.
关 键 词: 蛋白空间结构; 进化算法; 螺旋构象
课程来源: 视频讲座网
数据采集: 2021-03-07:zyk
最后编审: 2021-03-10:zyk
阅读次数: 79