Table 2.

Kinetic parameters of BlArap42B on plant glycosides and pNP-αl-Arap

Substrate	Km	kcat	kcat/Km
	mm	s−1	mm−1 s−1
Paeonolidea	0.074 ± 0.007	240 ± 10	3,200 ± 200
Ginsenoside Rb2a	0.051 ± 0.018	79 ± 8	1,500 ± 400
pNP-α-l-Arapb	3.4 ± 0.4	160 ± 10	46 ± 0.3

^a Measured at 30 °C in 40 mm sodium citrate (pH 6.5).

^b Measured at 37 °C in 40 mm sodium citrate (pH 6.5) and 0.005% Triton X-100.