Fig. 2From: Extracellular production of the engineered thermostable protease pernisine from Aeropyrum pernix K1 in Streptomyces rimosusAnalysis using SDS-PAGE (a), zymography (b) and Western blotting (c) following the initial trial for activation of prepropernisineCO from total cell lysates of S. rimosus transformed with plasmid construct pVFPER2. Lane 0, molecular weight markers; Lane 1, prepropernisine in 10 mM HEPES, pH 8.0, 1 mM CaCl2; Lane 2, heat-activated prepropernisine (30 min, 80 °C). Processed prepropernisine bands are indicated with arrowsBack to article page