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. 2018 Dec 18;9:1795. doi: 10.3389/fphys.2018.01795

FIGURE 6.

FIGURE 6

Effects of the E161K mutation in SCN5A, either in H558 or R558 background, on the action potential and fast sodium current (INa) of the Maleckar et al. model of a human atrial myocyte. (A) Action potentials elicited at 1 Hz and (B) associated fast sodium current (INa) in the absence of ACh. (C) Action potentials elicited at 1 Hz and (D) associated INa during simulated administration of 10 nM ACh. Insets show membrane potential (Vm) and INa on an expanded time scale. Solid gray lines show the effect of a 50% reduction in fully-activated conductance of INa (gNa).