TABLE 1.

Occurrence of leakage and flicker in different cell systems

Model system	T, °C	Number of experiments	Number of experiments where fusion was detected (complete fusions* + noncomplete fusions)	Number of experiments with flicker† (among those with leakage)	Incidence of leakage: number of experiments with leakage/number of fusions	Number of leakages resealed
HAb2/RBC	33	14	12 (9 + 3)	4 (4)	7/12	7
HAb2/RBC	22	17	12 (0 + 12)	10 (10)	10/12	6
HAb2/BLM	37	15	12 (12 + 0)	12 (10)	10/12	2‡
HAb2/PLC	22	27	11 (8 + 3)	9 (8)	8/11	7
Total		73	47 (29 + 18)	35 (32)	35/47	22

^*ΔIm reached plateau (HAb2/RBC and HAb2/BLM) or G_p reached 20 nS (HAb2/PLC).

^†Fusion pore closed completely at least once.

^‡After the completion of fusion G_dc < 4 nS.