RNA-RNA相互作用预测:分拆函数和碱基配对概率
RNA-RNA interaction prediction: partition function and base pair pairing probabilities
摘要:
本文在Alkan { \it et al.}提出的模型的基础上,研究了反义RNA与靶mRNA的相互作用。(Alkan { \it等人},J. Comput.生物学,[2006年,第267- 282页])。我们的主要结果是分拆函数\cite{Backhofen}的推导(Chitsaz { \it et al.},Bioinformatics,to appear,2009),基于紧密结构的概念和碱基配对概率的计算。本文给出了折叠算法{ \sf rip},它计算了相互作用序列在$N,M$表示的$O(N^4M^2)+O(N^2M^4)$时间和$O(N^2M^2)$空间中的分拆函数和碱基配对概率。
英文摘要:
In this paper, we study the interaction of an antisense RNA and its target mRNA, based on the model introduced by Alkan {\it et al.} (Alkan {\it et al.}, J. Comput. Biol., Vol:267--282, 2006). Our main results are the derivation of the partition function \cite{Backhofen} (Chitsaz {\it et al.}, Bioinformatics, to appear, 2009), based on the concept of tight-structure and the computation of the base pairing probabilities. This paper contains the folding algorithm {\sf rip} which computes the partition function as well as the base pairing probabilities in $O(N^4M^2)+O(N^2M^4)$ time and $O(N^2M^2)$ space, where $N,M$ denote the lengths of the interacting sequences.
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