TABLE 2.

Activation parameters for CO dehydrogenase

	Cu/CO dehydrogenase (pH 7.2)-COa	Ag/CO dehydrogenase (pH 7.2)-CO	Cu/CO dehydrogenase (pH 7.2)-H2	Ni/Fe hydrogenaseb
Ea	47.8	42.65	30.6
ΔH‡, kJ/mol	45.4	40.23	28.2
ΔS‡, J/ K·mol	−60.4	−94.4	−145.7
ΔG‡, kJ/mol	63.4	68.4	71.6	15.7

^a Zhang et al. (16).

^b Siegbahn et al. (24).