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. 2004 Oct 1;87(6):3737–3749. doi: 10.1529/biophysj.104.048397

FIGURE 1.

FIGURE 1

In A and B, the simulation systems are shown, namely (A) KcsA/POPC, which consisted of the KcsA transmembrane tetramer embedded in a bilayer of 243 POPC molecules, solvated with 7938 waters; and (B) OmpA/DMPC, which consisted of the OmpA N-terminal domain embedded in a bilayer of 111 DMPC molecules, solvated with 5055 waters. In C and D, surface representations of (C) KcsA and (D) OmpA are shown, both seen from “below” (i.e., from the cytoplasmic surface for KcsA, from the periplasmic surface for OmpA). The color code for amino acids is green for Trp and Tyr, and red for Arg and Lys.