Figure 4.

dpsA phylogeny. The bayesian tree for dpsA (ID 263), a protein involved in protection against oxidative stress, and the 20 best BLAST hits shows the clustering of proteins from Rickettsia with Legionella species and, to a lesser extent, with Parachlamydiaceae and Synechococcus, a cyanobacterium. Sequences retrieved using L. drancourtii or P. acanthamoebae as the query in a BLAST homology search are tagged with an LLAP or PAH prefix, respectively. Sequences belonging to the best BLAST hits for both orthologues harbor both prefixes.