Before revision: In addition, keratinase from B. licheniformis, alkaline serine protease from Streptomyces sp, subtilisin-like pernisine from Aeropyrum pernix, alkaline protease from Nocardiopsis sp, nattokinase from B. subtilis, engineered subtilisins from B. lentus and serine protease from three lichen species have been found to degrade PrP .
After revision: In addition, keratinase from B. licheniformis, alkaline serine protease from Streptomyces sp, subtilisin-like pernisine from Aeropyrum pernix, alkaline protease from Nocardiopsis sp, nattokinase from B. subtilis, engineered subtilisins from B. lentus and serine protease from three lichen species have been found to degrade PrPSc .