Fig. 7
ATP currents through the maxi-anion channel recorded in inside-out patches excised from neonatal rat cardiomyocytes. a Representative ramp I–V records (a) and channel activity in response to step pulses (b) from a macro-patch exposed to standard Ringer solution and one exposed to 100 mM Na4ATP solution. The pipette solution was standard Ringer. b Representative ramp I–V records (a) and channel activity in response to step pulses (b) from a macro-patch exposed to standard Ringer solution and one exposed to 100 mM Na2MgATP solution. The pipette solution was TEA-Cl. Modified from Dutta et al. [2]