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非参数法重建隐藏蛋白活性

Reconstructing hidden protein activity by nonparameteric methods
课程网址: http://videolectures.net/pim07_wernisch_rhp/  
主讲教师: Lorenz Wernisch
开课单位: 伦敦大学学院
开课时间: 2007-11-06
课程语种: 英语
中文简介:
大多数细胞过程不能直接测量。例如,蛋白质活性水平通常只能通过它们对基因表达的影响或其他蛋白质的修饰来间接评估。描述这种相互作用的功能关系的确切形式也是未知的。然而,通过将因子分析或动态模型与非参数回归方法相结合可以取得一些进展,这些方法不会对重构函数施加任何形式。另一方面,可识别性成为主要问题,需要与灵活性相平衡。我将报告我们在模拟和实验数据方面的经验,探索重建隐藏蛋白质活动和相互作用网络的局限性。
课程简介: Most of the cellular processes are not accessible to direct measurements. For example, the level of protein activities can often only be assessed indirectly by their effects on gene expression or the modification of other proteins. The exact form of the functional relationships describing such interactions are unknown as well. Nevertheless, some progress can be made by combining factor analysis or dynamical models with nonparametric regression methods, which don't impose any form on reconstructed functions. On the other hand, identifiability becomes are major problem and needs to be balanced against flexibility. I will report on our experience with simulated and experimental data in exploring the limits of reconstructing hidden protein activities and interaction networks.
关 键 词: 细胞; 蛋白质; 基因
课程来源: 视频讲座网
最后编审: 2020-10-22:chenxin
阅读次数: 53