Successive Snapshots from the MD Simulation Show Translocation of a Single Cation through the nAChR Channel (Applied Trans-Membrane Potential, −100 mV)

<p>Water molecules inside the nAChR channel are shown in surface representation, with the permeating cation in VDW representation. Water molecules outside the channel are shown in line representation, and other cations are shown as small yellow spheres. The protein and lipids are omitted.