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BMC Bioinformatics

Open Access

Erratum to: Permutation test for periodicity in short time series data

BMC Bioinformatics20078:395

Received: 17 October 2007

Accepted: 17 October 2007

Published: 17 October 2007

The original article was published in BMC Bioinformatics 2006 7:S10

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.


Authors’ Affiliations

Center for Bioinformatics, Colorado State University Campus delivery 1682 Fort Collins
Stem Cell Laboratory, Louisiana State University System Pennington Biomedical Research Center


  1. Ptitsyn AA, Zvonic S, Gimble JM: Permutation test for periodicity in short time series data. BMC Bioinformatics 2006, 7(Suppl 2):S10. 10.1186/1471-2105-7-S2-S10PubMed CentralView ArticlePubMedGoogle Scholar
  2. Tu BP, Kudlicki A, Rowicka M, McKnight SL: Logic of the yeast metabolic cycle: temporal compartmentalization of cellular processes. Science 2005, 310(5751):1152–1158. 10.1126/science.1120499View ArticlePubMedGoogle Scholar


© Ptitsyn et al; licensee BioMed Central Ltd. 2007

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.