TABLE 1.

Specific activities of the wild-type WF146 protease and PBL5X toward various substrates

Substrate	Specific activity (U/μmol)a
	WT protease at:		PBL5X at:
	25°C	90°C	25°C	90°C
Casein	3.0 ± 0.2	48.1 ± 3.3	12.5 ± 0.5	81.9 ± 5.6
Azocasein	14.3 ± 2.5	207.5 ± 7.2	31.5 ± 2.61	397.6 ± 14.4
BSA	4.3 ± 0.3	30.7 ± 2.9	6.1 ± 0.9	82.2 ± 15.3
Suc-AAPF-pNa	600.1 ± 20.0	2003.4 ± 108.7	763.9 ± 38.5	2411.8 ± 83.0

^aThe values are means ± standard deviations of three independent experiments.