Fig. 9.
Side-chain interactions within and between dimer units of the httNTQ7 tetramer. (A) Contacts between subunits of the dimer (labeling of side chain for one of the subunits is in dark red, and for the other in light red). (B) Contacts within the tetramer between the two helices of one dimer and one helix of the other dimer. Labeling within the two dimer units of the tetramer is in dark red/light red and dark blue/light blue. Residue color coding is as follows: hydrophobic, green; positively charged, blue; negatively charged, red; hydrophilic, cyan.