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. 2007 Feb;129(2):161–173. doi: 10.1085/jgp.200609672

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Copyright © 2007, The Rockefeller University Press

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Figure 2. — Macroscopic amiloride-sensitive current carried by A713X isoforms. (A) Current amplitude vs. side chain volume at the d position. Current was measured at −85 mV. F(6,109) = 8.226, P = 2.38e−07. (B) Current amplitude at −85 mV vs. reversal potential. The reversal potential was measured from amiloride-sensitive I-V curves derived from voltage ramps. We recorded from at least seven cells harvested from at least two frogs for all isoforms. Marker size is proportional to side chain volume in A and B.