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gA channel turn-off in response to suction steps applied to an inside-out patch isolated from PC-18 liposomes. The top trace in each panel is the pressure trace. Before the suction step channel activity fluctuated between 2–3 open channels that in A and C closed within 0.5 s of the 100-mmHg suction step. In B there was a single channel reopened during the 75-mmHg suction step.
