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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Circ Arrhythm Electrophysiol. 2011 Oct 9;4(6):926–935. doi: 10.1161/CIRCEP.111.964643

Figure 1.

Figure 1

The unitary conductance of KATP channels recorded from mouse cardiomyocytes originating from the cardiac conduction system (CCS) and the ventricle. A) A representative trace of CCS KATP channel unitary events recorded during a voltage clamp ramp (111 mV/s) from −100 to 100 mV. B) Following baseline subtraction, the region of the current marked by the box (membrane potential around −80mV) is shown. Also shown is an all-points histogram for this current section. C) Current-voltage relationship of the unitary current amplitude for KATP channels recorded from CCS or ventricular myocytes. Inset: slope conductances (mean±SEM), measured between −80 and −20 mV. *p<0.05; Student’s t-test.