A Statistical Analysis of RNA Folding Algorithms Through Thermodynamic Parameter Perturbation

Details A Statistical Analysis of RNA Folding Algorithms Through Thermodynamic Parameter Perturbation A Statistical Analysis of RNA Folding Algorithms Through Thermodynamic Parameter Perturbation

2004-11-28

arxiv.org/abs/q-bio/0411049v1

Biology

Quantitative Biology

Quantitative Methods

6 pages, 3 figures, 1 table submitted to Nucleic Acids Research

Scientific paper

Computational RNA secondary structure prediction is rather well established. However, such prediction algorithms always depend on a large number of experimentally measured parameters. Here, we study how sensitive structure prediction algorithms are to changes in these parameters. We find that already for changes corresponding to the actual experimental error to which these parameters have been determined 30% of the structure are falsly predicted and the ground state structure is preserved under parameter perturbation in only 5% of all cases. We establish that base pairing probabilities calculated in a thermal ensemble are a viable though not perfect measure for the reliability of the prediction of individual structure elements. A new measure of stability using parameter perturbation is proposed, and its limitations discussed.

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