	HepG2	Exon								Number of clones examined
	(Clone No.)	Exon								Number of clones examined
		2	3	4	5	6	7	8	9
Control	7									21
	9
2 Gy	4									23
	12
	13
	18
5 Gy	1									28
	8
	9
	10
	11
	12
	14
	16
	17
	20
2 Gy × 3	9									13
	10
	12
2 Gy × 5	1									18
	3
	12
	15
	17
	HepG2-8960-R
	(Clone No.)
Control										17
2 Gy	2									20
	3
	4
	6
	7
	15
5 Gy	3									12
	8
	9
	11
	12
2 Gy × 3	5									20
	7
2 Gy × 5										20