Voltage gated channel structure.png

Alt text
A cartoon depicting a voltage gated channel as four pink, rounded cylinders spanning the membrane on their long axis. The cylinders, which represent subunits, are clustered together such that if they were viewed end on, they would appear as four circles arranged in a square.

替代文本（Alt text）：一幅卡通插画，将电压门控通道（voltage gated channel）描绘为四个粉色圆角圆柱，沿自身长轴跨膜分布。这些代表通道亚基的圆柱彼此聚集，若从端面视角观察，将呈现为四个呈正方形排布的圆形。