Fig. 4.
Mean relationship between ATP concentration and KATP conductance (G), expressed relative to that in the absence of nucleotide (Gc) for wild-type (•) and R1380L (▴) channels. (A) In the presence of Mg2+: wild-type channels (n = 10) and R1380L channels (n = 5). (B) In the absence of Mg2+: wild-type channels (n = 7) and R1380L channels (n = 7).