. 2018 Mar 21;6:70. doi: 10.3389/fchem.2018.00070

Table 3.

Experimental kinetic and thermodynamics activation parameters for the reduction of H₂O₂ by free Cys and MtAhpE.

	k₂ (M⁻¹ s⁻¹)^a	E_act (kcal/mol)	ΔH^† (kcal/mol)	ΔS^† (cal/K.mol)	ΔG^† (kcal/mol)
Free Cys^b	14.9	17.0	16.4 (0.3)	1.7 (1.1)	15.9
MtAhpE-Cys₄₅^c	8.2 × 10⁴ (1.5)	5.7 (0.7)	4.8 (0.5)	−19.1 (1.9)	10.5

Standard deviations in parenthesis when available.

pH-independent rate constants.

data taken from Luo et al. (2005).

data taken from Zeida et al. (2014).