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A voltage-gated sodium channel spans a slab of lipid bilayer, with four repeat domains of coiled helices clustered around a central pore. Large lumpy domains crown the top, while below the membrane two looping clusters hang down on tangled strands ending in coiled tails. The lipid heads and wavy tails on each side show where the protein sits. Use this sodium channel model in neuroscience or cell biology lessons on nerve impulses, or display it as an intricate organic decor piece.

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