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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Heart Rhythm. 2014 Jul 18;11(11):2064–2072. doi: 10.1016/j.hrthm.2014.07.022

Fig. 3. PVC myocytes had reduced inward rectifier (IK1) current densities, accompanied by a downregulation of Kir2.2.

Fig. 3

(A) Top: Average steady-state current-voltage (I-V) relationships of CON and PVC myocytes. The enlarged view of gray shading area highlights the outward portion of IK1. Bottom: outward IK1 densities at −70 mV in CON and PVC myocytes. (B) Immunoblot quantification of IK1 channel subunits, Kir2.1 and Kir2.2, in LV samples. Data analysis and presentation are the same as Fig. 2D.