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RnaPredict—An Evolutionary Algorithm for RNA Secondary Structure Prediction

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3 Author(s)
Wiese, K.C. ; Simon Fraser Univ., Surrey ; Deschenes, A.A. ; Hendriks, A.G.

This paper presents two in-depth studies on RnaPredict, an evolutionary algorithm for RNA secondary structure prediction. The first study is an analysis of the performance of two thermodynamic models, Individual Nearest Neighbor (INN) and Individual Nearest Neighbor Hydrogen Bond (INN-HB). The correlation between the free energy of predicted structures and the sensitivity is analyzed for 19 RNA sequences. Although some variance is shown, there is a clear trend between a lower free energy and an increase in true positive base pairs. With increasing sequence length, this correlation generally decreases. In the second experiment, the accuracy of the predicted structures for these 19 sequences are compared against the accuracy of the structures generated by the mfold dynamic programming algorithm (DPA) and also to known structures. RnaPredict is shown to outperform the minimum free energy structures produced by mfold and has comparable performance when compared to suboptimal structures produced by mfold.

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Computational Biology and Bioinformatics, IEEE/ACM Transactions on  (Volume:5 ,  Issue: 1 )