Comparison of computational methods for the identification of cell cycle-regulated genes - PubMed (original) (raw)
Comparative Study
. 2005 Apr 1;21(7):1164-71.
doi: 10.1093/bioinformatics/bti093. Epub 2004 Oct 28.
Affiliations
- PMID: 15513999
- DOI: 10.1093/bioinformatics/bti093
Comparative Study
Comparison of computational methods for the identification of cell cycle-regulated genes
Ulrik de Lichtenberg et al. Bioinformatics. 2005.
Erratum in
- Bioinformatics. 2005 Jul 1;21(13):3063
Abstract
Motivation: DNA microarrays have been used extensively to study the cell cycle transcription programme in a number of model organisms. The Saccharomyces cerevisiae data in particular have been subjected to a wide range of bioinformatics analysis methods, aimed at identifying the correct and complete set of periodically expressed genes.
Results: Here, we provide the first thorough benchmark of such methods, surprisingly revealing that most new and more mathematically advanced methods actually perform worse than the analysis published with the original microarray data sets. We show that this loss of accuracy specifically affects methods that only model the shape of the expression profile without taking into account the magnitude of regulation. We present a simple permutation-based method that performs better than most existing methods.
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