TABLE 3.

 Sequence at T-T target site in replicated vectors

Strain	Relevant genotype	UV light fluence to cells (J/m2)	No. of indicated sequences at T-T dimer site					Error rate (%)
			T-T	T-C	T-A	ΔT	Other
TK603	umuDC+dnaQ+	0	204	1	0	0	0	0.5
		4	540	3	27	1	0	5.4
RW82	ΔumuDC dnaQ+	0	154	1	0	0	1	1.3
		4	355	0	0	3	1	1.1
DV12	umuDC+mutD5	0	183	4	2	0	0	3.2
		4	355	1	18	1	0	5.3
DV05	ΔumuDC mutD5	0	67	3	0	1	0	5.6
		4	90	5	0	0	0	5.3
DV13	ΔumuDC mutD5 lexA3	0	421	10	0	0	0	2.3
		4	661	21	0	1	0	3.2
DV34	ΔumuDC mutD5 ΔpolA	0	283	6	0	0	0	2.1
		4	293	4	0	1	0	1.7
DV10	ΔumuDC mutD5 ΔpolB	0	391	13	0	1	0	3.5
		4	441	14	0	0	0	3.1
DV42	ΔumuDC mutD5 ΔdinB	0	34	0	0	0	0	0.0
		4	48	0	0	0	0	0.0
DV36	ΔumuDC mutD5 ΔpolA ΔpolB	0	284	10	0	0	0	3.4
		4	289	8	0	0	0	2.7
DV40	ΔumuDC mutD5 ΔpolA ΔdinB	0	119	0	0	0	0	0.0
		4	103	1	0	0	0	1.0
DV30	ΔumuDC mutD5 ΔpolB ΔdinB	0	172	6	0	0	0	3.4
		4	169	5	0	0	0	2.9
DV32	ΔumuDC mutD5 ΔpolA ΔpolB ΔdinB	0	189	2	0	0	0	1.0
		4	185	3	0	1	0	2.6
DV38	ΔumuDC dnaQ+ ΔpolA ΔpolB ΔdinB	0	9	0	0	0	0	0.0
		4	4	0	0	0	0	0.0