Fig. 3: MicroED structure of the lens MP20 junctions.

a MP20 mediated membrane junction. Two MP20 tetramers interact in a head-to-head fashion (yellow and blue). The adhesive interactions are mediated by the extracellular loops. b MicroED density map around one yellow and one blue MP20 monomer as they form the adhesive interaction. c Two monomers shown in rainbow with the N terminus in blue and C terminus in red. The black lines indicate the position of the lipid bilayer with the extracellular and intracellular sides as indicated.