Properties of NapA from representative organisms from each class of proteobacteria: alpha (α), beta (β), gamma (γ), delta (d), and epsilon (e). One representative organism from each proteobacteria is presented, though multiple organisms were evaluated from each class. C. jejuni NapA structure was generated from the 1OGY structure following standard homology modeling technique using MOE software. Pymol was used in aligning protein structures, calculate and graph electrostatic potential and rendered images.