QIAGEN Proteinase K. For protease digestion during DNA and RNA preparation. Kit contents: Qiagen Proteinase K, 2mL, >600mAU/mL Activity, Ready-to-use Solution, For Protease Digestion During DNA and RNA Preparation, Offer Broad Substrate Specificity with High Activity for a Wide Range of Reaction Conditions, Used in Most DNA and RNA Isolation.