*4.3. Drugs and Solutions*

Pipette solution was prepared as 100 mM CsF, 40 mM CsCl, 5 mM NaCl, 0.5 mM CaCl2, 10 mM HEPES, and 5 mM EGTA, and its pH was adjusted to 7.35 with CsOH. For cells' perfusion, an extracellular solution with 143 mM NaCl, 5 mM KCl, 2.5 mM CaCl2, 2 mM MgCl2, 18 mM D-glucose, 10 mM HEPES, and 10 mM MES was used, with its pH adjusted to 7.4. Drug-containing solutions were prepared from extracellular solution and their pH was adjusted again if necessary.
