Table 3. Change in energy transfer efficiency upon MutS binding to different DNA duplexes.

Duplex number (X/Y)a	Δ(Fmax/Red)
V (A/T)	0.01±0.001
VI (A/C)	0.02±0.002
VII (A/Tg)	0.01±0.008
VIII (G/C)	0.01±0.001
IX (G/T)	0.13±0.001
X (G/Tg)	0.01±0.001

^aVariable nucleotide pair.

The error of the mean indicates a SEM.