Fig. 6.
Induced expression of Na+/Ca2+ exchanger transgene has no effect on L-type Ca2+ current (ICa) density. ICa was measured in WT (○; n = 14), noninduced (□; n = 9), and induced (•; n = 11) myocytes at 30°C and 1.8 mM [Ca2+]o. Current density of peak ICa (means ± SE) at each test potential (−40 to + 40 mV) is shown. Error bars are not shown if they fall within the boundaries of a symbol.