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Phylogenetic tree of CsoR (shaded in blue), RcnR (gray), and FrmR (red) family of regulators. Amino acid sequences were aligned using ClustalX 2.1 (Larkin et al., 2007) and analyzed using SplitsTree4 (Huson and Bryant, 2006). The tree shown was drawn using the ConsensusTree function and 500 bootstrap cycles.
