1B4G:
reference: Control of K+ channel gating by protein phosphorylation: structural switches of the inactivation gate., Antz C, Bauer T, Kalbacher H, Frank R, Covarrubias M, Kalbitzer HR, Ruppersberg JP, Baukrowitz T, Fakler B, Nat Struct Biol 1999 Feb;6(2):146-50. PMID: 10048926

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