A. Weighted salt bridge scores of the LL docking interface determined using ALIGN [11]. B. Schematic of the double belt model for discoidal HDL showing the juxtaposition (within 6 Å) of Cα atoms of pairwise residues 129, 140 and 118 in the LL5/5, LL5/6 and LL5/4 rotamers, respectively. Each residue is in α11/3 wheel position 9. Prolines are yellow spacefilling, G129 is gold spacefilling, K140 is blue spacefilling, K118 is red spacefilling, helix 6 is steel blue, and helix 4 is pink.