Table 2.

Steady-state kinetic parameters of pNP-X₂ in the presence of sodium azide.

	kcat (min−1)	Km (mM)	kcat/Km (min−1 mM−1)
T82V-SEA	2.14 ± 0.14	0.0362 ± 0.0031	59.1
T82A-SEA	18.9 ± 0.5	0.136 ± 0.003	139
SEA*	3.14 ± 0.32	0.0789 ± 0.0033	39.8
WT-SoXyn10A*	2,530 ± 34**	2.37 ± 0.05	1,080

^* The data are excerpted from Suzuki et al.^{15) **} This error value in Suzuki et al¹⁵⁾ was wrong and is corrected here.