where the addition of KChIP3 markedly slows the time course of inactivation. At +50 mV, the Kv4.2 + KChIP3 + DPP6-S currents resulting from cDNA cotransfection at 1:1:1 molar ratios exhibited waveforms that resembled those of Kv4.2 + KChIP3 (Fig. 6E). The ...