. 2000 Oct 1;28(19):3771–3778. doi: 10.1093/nar/28.19.3771

Table 3. I-SceI-stimulation of TK^–APRT^– colony formation in ERCC1⁺ and ERCC1^– cell populations.

Cell line		DNA	TK^–APRT^– cells (×10^–6)^a
			Experiment 1	Experiment 2
AK784	ERCC1⁺	pCMV-β-galactosidase	<2	3.9 ± 3.8
AK784	ERCC1⁺	pCMV-I-SceI	1100 ± 340	4100 ± 2600
GSAK1	ERCC1^–	pCMV-β-galactosidase	11 ± 1.9	8.1 ± 4.3
GSAK1	ERCC1^–	pCMV-I-SceI	62 ± 28	200 ± 130

^aFor experiment 1 the frequencies of TK^–APRT^– cells are an average of results from four transfected wells. For experiment 2 the frequencies for pCMV-β-galactosidase transfections are an average of results from four transfected wells, whereas the frequencies for pCMV-I-SceI transfections are averaged from 20 transfected wells. Standard deviations are indicated.

Table 3. I-SceI-stimulation of TK–APRT– colony formation in ERCC1+ and ERCC1– cell populations.

Table 3. I-SceI-stimulation of TK^–APRT^– colony formation in ERCC1⁺ and ERCC1^– cell populations.