. 2022 May 25;12(12):6816–6830. doi: 10.1021/acscatal.2c00257

Table 2. Activation Energies E_A and Arrhenius Prefactors A Obtained for CDP-Glc and CDP-[2-²H]Glc for the Temperature Range of 20–40 °C and 45–70 °C^a.

	20–40 °C		45–70 °C
substrate	E_A (kJ mol^–1)	A (min^–1)	E_A (kJ mol^–1)	A (min^–1)
CDP-Glc	+66.7 ± 9.4	(6.9 ± 1.2) × 10⁹	+60.2 ± 3.3	(1.7 ± 0.3) × 10⁹
CDP-[2-²H]Glc	+29 ± 4.5	(9.9 ± 2.6) × 10²	+72.9 ± 6.7	(3.8 ± 0.7) × 10¹⁰
ΔE_A	–36.7 ± 7.6		+12.7 ± 2.6
A_H/A_D	(7.0 ± 1.1) × 10⁶		0.05 ± 0.007

E_A and A (y intercept) were obtained from the slope of the linearized Arrhenius equation (see eq 1). The activation energy difference ΔE_A (= E_A,D – E_A,H) and Arrhenius prefactor ratios A_H/A_D were calculated accordingly. Subscript H and D indicate parameters for the reaction with the protio and deuterio substrate, respectively.

Table 2. Activation Energies EA and Arrhenius Prefactors A Obtained for CDP-Glc and CDP-[2-2H]Glc for the Temperature Range of 20–40 °C and 45–70 °Ca.

Table 2. Activation Energies E_A and Arrhenius Prefactors A Obtained for CDP-Glc and CDP-[2-²H]Glc for the Temperature Range of 20–40 °C and 45–70 °C^a.