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A model of the BK channel. (A) Ribbon representation of a single subunit from the BK model generated by superimposing the BK gating ring and Kv paddle chimera (PDB accession, 2R9R) onto the MthK channel (PDB accession, 1LNQ). The transmembrane domain, RCK1, and RCK2 are colored in green, blue, and red, respectively. (B) Stereoview of the BK model from the side with the transmembrane domain above. Each subunit of the tetramer is colored differently.
