Proteinase K is a non-specific serine protease with a very high specific activity. The enzyme shows high stability and activity also in the presence of SDS, EDTA and chaotropic salts. Proteinase K is free of RNase and DNase activities and has a specific activity of 30 U/mg. The recommended working concentration for Proteinase K is 50 – 100 µg/mL in the majority of applications in nucleic acid extraction.
This solution has a concentration of 20 mg/ml. BIORON also offers Proteinase K as lyophilized powder.
Storage at – 20 °C.