Potassium channel in membrane
This short video shows the molecular dynamics of a voltage-gated potassium channel (kv1.2) embedded in a lipid bilayer. The Kv1.2 structure is shown as pink cartoon; the lipid bilayer is represented as cyan sticks (lipid phase) and the phosphate moieties are in orange. The green sphere represents K+ ions bound to the selectivity filter. Only a tiny fraction of the total number of water molecules are represented here.