Fig. 5: Comparison between selectivity filter structures in WT high-K, WT low-K, and S631A HERG.
From: Potassium dependent structural changes in the selectivity filter of HERG potassium channels
A The three structures (orange: WT Low-K, blue: WT High-K, green: S631A, 5va3.pdb) were aligned on the pore helix regions. The S631A filter (green) is displaced downwards relative to the WT structures. B Highlight of the boxed region from A, showing the relationship between the backbone atoms in the selectivity filter. Distances on left side indicate vertical displacement of backbone Cα atoms for S631A and WT low-K.
