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. 2002 May 15;541(Pt 1):81–90. doi: 10.1113/jphysiol.2001.015222

Figure 4. MS channels are not permeable to organic cations.

Figure 4

I-V relationships of MS channels with 145 mm NMDGCl in the pipette (cell-attached recording, filled squares), and in the cytosol-like bathing solution (inside-out recording, open circles). Single-current measurements were performed over a wide range of membrane potentials: at potentials up to −150 mV with NMDG in the pipette, no inward currents were observed; at potentials up to +60 mV with NMDG in the cytosol-like bathing solution, no outward currents were observed.