Figure 2From: Structural insights into Escherichia coli polymyxin B resistance protein D with X-ray crystallography and small-angle X-ray scatteringThe electrostatic potential of E . coli PmrD. Surface illustration of E. coli PmrD colored by the electrostatic potential. There are four electropositive regions in the PmrD monomer (surface1, surface2, surface3, and surface4).Back to article page