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Reversal Potential (Erev) and Permeability Ratios (PK+/PX) for CASTOR
Permeability ratios calculated from reversal potentials using equation Erev = RT/zF × ln(PK+[K]o/PNa+[Na]i).
Permeability ratios calculated from reversal potentials using equation Erev= RT/F × ln(√((4PCa2+[Ca]o/PK+[K]i)+1/4) − 1/2), where RT/F = 25.26 mV and Z = 1. The junction potential correction was as follows: KCl-NaCl, Vm = V − 1.1 mV; KCl-CaCl2, Vm = V − 2.3 mV.
