Figure 2.

(A) Surface representation of PglB structure (PDB:3RCE) with protein and LLO binding sites marked by red dashed lines. The gray slab represents a tentative membrane region. (B) The inner shape of the LLO binding site. The inner shape is generated using a set of grid points located within 3 to 4.5 Å from the LLO binding site surface. Highly solvent exposed grids were discarded from the grid set by calculating enclosures. The enclosure is defined by the fraction of radial rays that strike the protein surface atoms among 146 evenly spaced 8 Å-long radial rays from a grid point. If the enclosure is less than 0.5, the grid is considered solvent exposed and thus removed. To see this figure in color, go online.