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Single-channel translocation record for αd and a buffer control. Single-channel current recordings (black trace) of PA channel without peptide (Buffer) and with 36 nM αd (d-enantiomer); representative recordings were performed at pH cis 5.6, 2-unit ΔpH, 0 mV Δψ, and asymmetric KCl (100 mM [added KCl]cis, 0 mM [added KCl]trans). Open (O) and closed (C) states are designated with blue lines. Note that scale bar for buffer and αd is given at left.
