Abstract
Here we describe the long awaited atomic structure of the gap junction channel. The structure reveals intra-/inter- monomer interactions, which stabilize the channel structure, and intercellular interactions between two apposing hemichannels. The structure also reveals the pore structure in detail, charge distribution, pore-lining residues and so on. The novel structure, pore funnel, is found on the top of the pore and the relationship with channel gating could be inspected.
