BMC Genomics 2008, 9:339 http://www.biomedcentral.com/1471-2164/9/339 TFhigeudriest2ribution of Saccharomyces cerevisiae sequences The distribution of Saccharomyces cerevisiae sequences. Computed minimum free energy is on the x-axis, z score is on the y-axis. Black lines denote the mean values and gray lines define sequence windows that are one and two standard devia- tions less than mean. Clicking on any region links to the closest -1 PRF signals with respect to MFE and z score. Page 4 of 7 (page number not for citation purposes)