Global Twisting Motion of Single Molecular KcsA Potassium Channel upon GatingHirofumi Shimizu, Masayuki Iwamoto, Takashi Konno, Amiko Nihei, Yuji C Sasaki, Shigetoshi OikiCell2008Ion channels are signal transduction molecules that switch ion permeation pathways on and off (gating). Crystal structures of several kinds of potassium channels have revealed open and closed… (More)