Figure 5.
Gating effects of mutations at Y352 and E363 are not additive. (A) Macroscopic currents of the Y352A/E363Q double mutant in 2 mM cGMP; each trace is the average of nine individual traces. (B) Corresponding G-V curve (mean ± SEM; n = 5). (C) Residual conductance (mean ± SEM; n = 4–5) at very negative voltages of the channels containing a single E363Q (squares) or Y352A (circles) mutation, or a Y352A/ E363Q double mutation (triangles).