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A tall protein complex passes through a strip of cell membrane in this organic model of the KATP channel octamer. Bundles of twisted helices form the central Kir6 pore, bumpy SUR subunit lobes cluster above and below, and a layer of round lipid heads with wavy tails spreads out on each side as the membrane. The mix of coiled columns and knobbly clusters makes the structure easy to explore. It fits a cell biology classroom, a bioelectricity study desk or a display shelf of membrane protein models.

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