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. Author manuscript; available in PMC: 2014 Dec 28.
Published in final edited form as: Nat Commun. 2012 Jan 10;3:617. doi: 10.1038/ncomms1625

Fig. 5. ‘Cartoon’ model of ligand-gating of Kir channels.

Fig. 5

Views of closed (1P7B, gray) and ‘open’ (red) models of KirBac1.1 in (left) and from below (right) the plane of the membrane. Opening requires (i) outward twisting and tilting of βI, and (ii) outward motion of βII and associated short helices. For clarity, only two subunits are shown in each view.