The neighbor-joining tree showing phylogenetic relationships of putative phosphate-binding proteins from Pseudomonas. The deduced amino acid sequences are derived from the Pseudomonas genome databases: P. aeruginosa PA14 (PA14_55410, PA14_70860 and PA14_31620); P. aeruginosa PAO1 [PA0688 (LapA), PA0689 (LapB) and PA5369 (it is identical to PA14_70860 thus not shown in the tree); P. putida KT2440 (PP_5329, PP_2656); P. fluorescens Pf-5 (PFL_2759, PFL_2760 and PFL_6119); P. fluorescens Pf0-1 (Pfl_3172 and Pfl_5615); P. syringae pv. tomato DC3000 (PSPTO_3269 and PSPTO_5487); P. entomophila L48 (PSEEN3182 and PSEEN5473). Percentage bootstrap values obtained from 1000 trials are shown on branches. The scale bar refers to the number of substitutions per site.