Atomistic Simulations of Ion Channels - Computational Neuroscience: A Comprehensive Approach - page 35

Figure 2.2
Schematic structure of the KcsA channel, with the pore lining M2 helices, the outer
M1 helices, and the pore-helices P. A. View from the extracellular side; B. View from
the side. The spheres indicate some of the positions where ion density is found in
the crystal structure.