TABLE 1.

Rev1-dependent gap filling on DNA templates containing a defined UV lesion^a

Cell line	Template with (6-4)PP-TT				Template with CPD-TT
	No. of Kanr colonies	No. of Cmr colonies	Gap repair (%)b	TLS (%)c	No. of Kanr colonies	No. of Cmr colonies	Gap repair (%)b	TLS (%)c
Wild type	922 ± 205	1,280 ± 244	72 ± 3	72 ± 3	403 ± 60	416 ± 85	98 ± 7	94 ± 6
Rev1B/B	561 ± 123	1,122 ± 198	50 ± 4	ND	280 ± 57	413 ± 55	67 ± 7	ND
Rev1−/−	304 ± 30	1,160 ± 163	26 ± 2	22 ± 2	169 ± 11	368 ± 63	48 ± 14	41 ± 12

^aValues are means ± standard deviations.

^bRatio of Kan^r colonies to Cm^r colonies.

^cTLS, translesion synthesis; ND, not determined. Only plasmids containing no deletions are included (Table 2).