Figure 3.

ASLV TM electrostatic interactions. A) Ribbon diagram of ASLV TM with ion‐pair interactions shown as green sticks. Each TM monomer is shown in a different shade of pink. Inset: zoomed view of electrostatic interactions between the HR1‐HR2 and HR1‐HR1 interfaces and the CR region. Distances between residues are shown in angstroms; asterisks indicate residues contributed by a neighboring molecule. B) CD thermal denaturation profiles of wild‐type and salt bridge ASLV TM mutants. CD signals were normalized between 0 (folded) and 1 (unfolded); melting temperatures are shown at right.