Pipette solution for K+ current recordings
10 mM HEPES
80 mM potassium glutamate
Before each experiment, add Mg-ATP from a 0.5 M Mg-ATP stock solution stock to a final concentration of 5 mM.
Adjust the osmolality to 550 mM/kg with sorbitol.
Adjust the pH to 7.8 with Tris.
