Table 2. Apparent equilibrium dissociation constants for wild-type and mutant MutH proteins.

MutL	Protein	Kd (µM)
+	Wild-type	4.2 ± 0.7
+	D70A	48 ± 6
+	E77A	20 ± 4
+	K79A	3 ± 0.8
–	Wild-type	57 ± 0.6
–	D70A	83 ± 12
–	E77A	67 ± 10
–	K79A	14 ± 4