Skip to main content
. 2011 May 23;108(25):10174–10177. doi: 10.1073/pnas.1103979108

Fig. 4.

Fig. 4.

A double-mutant cycle reveals that two arginines cooperate energetically to partition into a membrane. The OmpLA system is shown similarly as in Fig. 1 with the atoms of the side chains varied in the cycle shown as spheres. The arginine side-chain orientations shown are for illustration of size and are not intended to depict any known side-chain conformations relative to the lipid bilayer in our experiments.