Table 2.

Mutation rates of the wild-type, lexA3, ΔmutS and ΔmutY MA lines

Strain	Group	BPSs MR	Confidence intervals		Indels MR	Confidence intervals
Wild-type	WA	2.08	1.56	2.72	2.36	0.87	5.13
		1.06	0.29	2.72	5.31	0.64	19.2
Wild-type	WB	2.33	1.8	2.98	2.55	1.03	5.26
		2.22	1.01	4.21	2.46	0.06	13.7
Wild-type	WC	3.96	3.22	4.82	6.34	3.62	10.3
		3.47	1.85	5.93	5.34	0.65	19.3
Wild-type	WD	5.26	4.35	6.30	12.9	8.65	18.6
		4.80	2.74	7.79	12.0	3.27	30.7
Wild-type	WE	6.29	5.31	7.39	11.5	7.56	16.7
		6.28	3.94	9.51	8.56	1.77	25.0
lexA3	LA	1.58	1.14	2.14	0.75	0.09	2.72
		0.762	0.157	2.23	0	0	9.37
lexA3	LB	1.91	1.44	2.48	3.75	1.87	6.71
		1.38	0.507	3.01	2.30	0.06	12.8
lexA3	LC	1.96	1.47	2.56	4.43	2.29	7.74
		1.49	0.548	3.25	2.49	0.06	13.9
lexA3	LD	2.92	2.23	3.76	3.90	1.68	7.67
		1.64	0.533	3.83	0	0	12.1
lexA3	LE	4.31	3.41	5.37	6.00	2.99	10.7
		3.31	1.51	6.27	3.67	0.09	20.5
ΔmutS	SA	232	218	247	440	379	509
ΔmutS	SB	268	252	284	426	365	494
ΔmutS	SC	290	274	308	541	470	620
ΔmutS	SD	287	275	299	393	351	438
ΔmutS	SE	334	316	353	649	571	735
ΔmutY	YA	16.9	14.8	19.2	4.34	1.59	9.45
ΔmutY	YC	18.1	16.2	20.3	2.87	0.93	6.70
ΔmutY	YD	25.4	22.9	28.1	6.75	3.24	12.4
ΔmutY	YE	24.5	22.1	27.2	6.02	2.75	11.4
ΔmutY	YF	23.2	20.8	25.9	21.1	14.3	30.2

Mutation rates are in units of per nucleotide site per cell division. Bolded areas show information at four-fold degenerate sites. BPSs MR, base-substitution mutation rate (× 10^–10); Indels MR, small indels mutation rate (× 10^–11); confidence intervals are 95% Poisson confidence intervals (applying to tables below too) for BPSs MR (× 10^–10) and Indels MR (× 10^–11) respectively; group is the abbreviation for each group label of MA lines; lexA3, the SOS-uninducible strain. Data for the wild-type strain and lexA3 strains are from this study; those of the ΔmutS and the ΔmutY strains are from our previous study (Long et al. 2016)