Table 2. Kinetic constants derived by fitting the absorbance variation recorded at 295 nm after the addition of KCl using a ‘two kinetic processes’ model (Equation 1). Data were acquired in 10 mM Tris at 25°C.

[KCl]	[kit2]	k 1 (s-1)	k 2 (s-1)
10 mM	6 μM	6.00 ± 0.33	0.54 ± 0.04
50 mM	6 μM	6.96 ± 0.20	0.62 ± 0.03
50 mM	4 μM	8.13 ± 0.34	0.62 ± 0.04
50 mM	2 μM	8.12 ± 0.62	0.70± 0.09