Table 1

Composition of recording solutions

	Standard_e	10Ca_e	10Ba_e	125K_i	0K_i	0Ca	1μmCa	10μmCa
NaCl	141	140	140
CsCl					130
KCl	4.7	2.7	2.7	125		125	125	125
CaCl₂	1.8	10					8.46	10.9
BaCl₂			10
MgCl₂	1.2			4
HEPES	10	10	10	10	10	10	10	10
Glucose	10	10	10
EGTA				10	10	11.25	11.25	11.25
MgATP				5	4
LiGTP					2
pH	7.42	7.42	7.42	7.2	7.2	7.2	7.2	7.2
	(NaOH)	(NaOH)	(NaOH)	(KOH)	(CsOH)	(KOH)	(KOH)	(KOH)