Fig. 6: Electrostatic potential map of the WT SC and CRD1∆ SC.

Electrostatic potential map (generated in Chimera× 50 based on Coulomb’s law) is mapped onto the WT SC (a) and CRD1∆ SC (b); (blue, positive charge and red, negative charge). The boxed-out region (on the left) reveals the electrostatic pocket at the CIV-CIlI interface. The headgroups of CDL x 2 (a) and PGT × 2 (b) have complementary charges when compared to the interacting surface of the protein.