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. 2003 Oct;122(4):459–469. doi: 10.1085/jgp.200308818

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Copyright © 2003, The Rockefeller University Press

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Figure 6. — Normalized voltage-activation curves for gating (Q _OFF, red circles) and ionic currents (G/G _max, black symbols). Conductance and Q_ON data points were fit to Boltzmann functions as described in materials and methods. V_{1/2 − G} = −148 ± 3 mV and z = 1.20 ± 0.06 (n = 13). V_{1/2 − Q} = −172 ± 10 mV and z_Q = 0.57 ± 0.15 (n = 8). The solid blue line is the predicted Q-V curve for the KAT1 using the voltage-dependent rate constants for Scheme I given by Zei and Aldrich (1998).