Table 1.

Intracellular [Ca²⁺] of the dye-injected cell in Cx44-EYFP transiently transfected HeLa cells

Treatment	[Ca2+]i∗	Transfer rate (%)
No ionomycin	25 ± 2 nM	100 (n = 13)
Ionomycin (1 μM)	1270 ± 140 nM	0 (n = 6)

^∗The measurement of [Ca²⁺]_i was carried out using Fura-2 AM as described previously (10).