Figure 3

Overview of PDC/PAS proteins in 28 Gram-positive bacteria. The total number of PDC/PAS proteins found in each genome is shown in parentheses next to the species name and its corresponding bar length. Ranges of different colors in each bar indicate the proportions of different domain architectures. They include "single PDC" (dark blue: PDC), "two PDCs" (light blue: PDC = 2), "PDC and PAS" (purple: PDC PAS), "single PAS" (orange: PAS), "two PASs" (red: PAS = 2), "more than two PASs" (brown: PAS > 2), and "multiple PAS and PDC" (yellow green: PAS/PDC > =2). See (Additional file 1: Table S1) for the details. On the left hand side, the maximum likelihood phylogeny of 16S rDNA sequences is given to provide an evolutionary relationship among these bacteria. Dark circles at internal nodes represent those supported by bootstrap values greater than 70%.