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Single-channel current records of POPC-DOPE bilayers formed in 1 M NaCl at 25°C in the presence of 0.5 μg of the 38-kDa protein of R. aquatilis per ml. Data were recorded at 2,000 Hz with a 300-Hz filter. The applied membrane potential was 55 mV. The lower trace shows an expanded recording of the box marked on the plot above it.
