Table 2.

R_ct values^a, R_ct change values and change ratio of R_ct values before and after interaction MutS with heteroduplex and homoduplex

	GT	CT	CC	AT
Rct (Ω)
MutS	(2.43 ± 0.51) × 104	(3.06 ± 0.43) × 104	(3.82 ± 0.68) × 104	(3.78 ± 0.70) × 104
2 µM	(3.24 ± 0.23) × 104	(3.78 ± 0.18) × 104	(4.12 ± 0.27) × 104	(3.87 ± 0.15) × 104
6 µM	(4.52 ± 0.31) × 104	(4.34 ± 0.25) × 104	(4.42 ± 0.29) × 104	(3.22 ± 0.17) × 104
10 µM	(5.86 ± 0.36) × 104	(4.85 ± 0.24) × 104	(4.92 ± 0.25) × 104	(3.98 ± 0.19) × 104
ΔRct (Ω)
2 µM	8050	7190	3000	860
6 µM	20 810	12 730	6000	1410
10 µM	34 200	17 870	11 020	2030
%(ΔRct)
2 µM	33	23	8	2
6 µM	85	41	16	4
10 µM	140	58	21	6
Detection limitb (µM)  0.044		0.13	0.31	1.56

^aThe values of R_ct are mean ± SD of three repeated experiments.

^bDetection limit $C_m=(S_m-{\overline{S}}_{\text{bl}})/m$, $S_m={\overline{S}}_{\text{bl}}+k{s}_{\text{bl}}$(${\overline{S}}_{\text{bl}}$, mean of blank; S_bl, standard deviation of blank; k, detection limit constant, blank contains only the MutS solution).