Figure 1. Effects of coexpressed cβARK and Gβγ on N-VDCCs in Xenopus oocytes.
A, IBa (lower trace) measured by the double pulse protocol (upper trace). Percentage facilitation was calculated as ΔIBa/IBa× 100%. B, effects of coexpressed cβARK and Gβγ on facilitation of α1B. Amounts of coexpressed RNAs are indicated (ng oocyte−1; RNAs of Gβ and Gγ were always injected at 5: 1 ratio). C, summary of effects of cβARK and Gβγ on facilitation (a) and t90% (b). Each column represents a group of oocytes injected with the indicated RNAs; n= 10 in each group. *P < 0.05, **P < 0.01 by one-way ANOVA.