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

Table 2. Rates at which selectable phenotypes are generated in ERCC1⁺ and ERCC1^– cells.

Selection	Rates (×10^–7)
	ERCC1⁺		ERCC1^–
	GS22-15^a	AK784^b	GS22-13^a	GSAK1^b
TK^–APRT^–	1.4 ± 0.5	1.1	6 ± 3	1.8
TK^–	15 ± 3	17	48 ± 23	62
APRT^–	14 ± 3	6.9	31 ± 25	42

^aData for GS22-13 and GS22-15 are from Sargent et al. (19). GS22-13 and GS22-15 have tandem duplications identical to AK784 and GSAK1 except that they do not carry the 800 bp segment of non-homology or an I-SceI site in the second intron of APRT.

^bData for AK784 and GSAK1 are from a single 12 pot fluctuation experiment analyzed to determine recombination rates, as described previously (23,24).

Table 2. Rates at which selectable phenotypes are generated in ERCC1+ and ERCC1– cells.

Table 2. Rates at which selectable phenotypes are generated in ERCC1⁺ and ERCC1^– cells.