In our paper reporting the permuted-time test for periodicity [1], the table in Figure 4 and the text of the Discussion should be modified as follows: The % of genes detected by Tu et al. [2] should be reported as 57.2% rather than 38.1% as currently reported; thus the difference between the methods should be reduced (to 84.7% vs. 57.2%). The discrepancy results from the fact that the absolute number of 3552 transcripts was identified from a smaller subset of pre-selected expression profiles corresponding to known yeast genes, while the Pt-test was applied to the entire set of probesets. We would like to thank two of the co-authors of the Tu et al. [2] publication, Drs. Rowicka and Kudlicki (UT-Southwestern), for bringing this to our attention.
Contributor Information
Andrey A Ptitsyn, Email: andrey.ptitsyn@colostate.edu.
Sanjin Zvonic, Email: ZvonicS@pbrc.edu.
Jeffrey M Gimble, Email: Jeffrey.Gimble@pbrc.edu.
References
- Ptitsyn AA, Zvonic S, Gimble JM. Permutation test for periodicity in short time series data. BMC Bioinformatics. 2006;7:S10. doi: 10.1186/1471-2105-7-S2-S10. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tu BP, Kudlicki A, Rowicka M, McKnight SL. Logic of the yeast metabolic cycle: temporal compartmentalization of cellular processes. Science. 2005;310:1152–1158. doi: 10.1126/science.1120499. [DOI] [PubMed] [Google Scholar]