Consistent robustness analysis (CRA) identifies biologically relevant properties of regulatory network models.

<h4>Background</h4>A number of studies have previously demonstrated that "goodness of fit" is insufficient in reliably classifying the credibility of a biological model. Robustness and/or sensitivity analysis is commonly employed as a secondary method for evaluating the suitabi...

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Autores principales: Treenut Saithong, Kevin J Painter, Andrew J Millar
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2010
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Acceso en línea:https://doaj.org/article/d185fb74ac1f41f589415ac584e945e6
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Sumario:<h4>Background</h4>A number of studies have previously demonstrated that "goodness of fit" is insufficient in reliably classifying the credibility of a biological model. Robustness and/or sensitivity analysis is commonly employed as a secondary method for evaluating the suitability of a particular model. The results of such analyses invariably depend on the particular parameter set tested, yet many parameter values for biological models are uncertain.<h4>Results</h4>Here, we propose a novel robustness analysis that aims to determine the "common robustness" of the model with multiple, biologically plausible parameter sets, rather than the local robustness for a particular parameter set. Our method is applied to two published models of the Arabidopsis circadian clock (the one-loop [1] and two-loop [2] models). The results reinforce current findings suggesting the greater reliability of the two-loop model and pinpoint the crucial role of TOC1 in the circadian network.<h4>Conclusions</h4>Consistent Robustness Analysis can indicate both the relative plausibility of different models and also the critical components and processes controlling each model.