Table 2. Regression Parameter Estimates.

(α) Δ(ΔGKm) N=22 experiments, R2 = 0.95
Term	Estimate	Std Error	t Ratio	Prob>|t|
111	0.10	0.118	0.83	0.4277
192	−0.22	0.101	−2.19	0.0534
195	−0.68	0.128	−5.33	0.0003
Mg	−0.27	0.113	−2.35	0.0406
(111)*(192)	−0.40	0.239	−1.67	0.1251
(192)*(195)	−0.59	0.258	−2.28	0.0460
(111)*(Mg)	−0.66	0.271	−2.42	0.0360
(192)*(Mg)	0.96	0.226	4.26	0.0017
(195)*(Mg)	1.10	0.280	3.91	0.0029
(111)*(192)*(Mg)	1.37	0.543	2.51	0.0307
(192)*(195)*(Mg)	−1.67	0.559	−2.98	0.0138

(β) Δ(ΔGkcat), N=22 experiments, R2 = 0.996
Term	Estimate	Std Error	t Ratio	Prob>|t|
111	−1.62	0.0816	−19.88	<.0001
192	−2.05	0.0699	−29.31	<.0001
195	−2.04	0.0884	−23.07	<.0001
Mg	−1.48	0.0780	−18.97	<.0001
(111)*(192)	−1.12	0.164	−6.83	<.0001
(192)*(195)	−1.51	0.178	−8.47	<.0001
(111)*(Mg)	0.22	0.187	1.18	0.2656
(192)*(Mg)	1.44	0.156	9.21	<.0001
(195)*(Mg)	−0.76	0.193	−3.93	0.0028
(111)*(192)*(Mg)	2.50	0.374	6.67	<.0001
(192)*(195)*(Mg)	1.15	0.386	2.99	0.0136