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70663 Proteinase K, Lyophilized

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Catalog NumberPackaging Qty/Pack
70663-4 Plastic ampoule 100 mg
70663-5 Glass bottle 500 mg
OverviewProteinase K is a highly active 28,904-Da serine protease isolated from the fungus Tritirachium album. The enzyme exhibits broad cleavage specificity on native and denatured proteins and is widely used in the purification of DNA and RNA. Its activity is increased in the presence of denaturants such as SDS (1%) and elevated temperature (50-60°C). The recommended working concentration is 50-100 µg/ml for protein removal and enzyme inactivation, and up to 2 mg/ml for tissue treatment. The Proteinase K, Lyophilized powder can be prepared as a 20 mg/ml stock solution in water and stored in aliquots at -20°C. The enzyme is also available as a ready-to-use concentrated stock solution (600 mAU/ml) that is convenient for routine use in most applications. 1 mg of Proteinase K is the equivalent of 30 mAU (AU = Anson unit). The Novagen Proteinase K products are free of detectable DNase and RNase
Catalogue Number70663
Brand Family Novagen®
Product Information
CAS number39450-01-6
Unit of DefinitionOne AU (AU = Anson unit) is defined as the amount of enzyme that liberates 1.0 µmol (181 µg) of tyrosine from casein per minute at pH 7.5 at 37°C.
Quality LevelMQ400
Biological Information
Physicochemical Information
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
R PhraseR: 36/37/38-42

Irritating to eyes, respiratory system and skin.
May cause sensitization by inhalation.
S PhraseS: 22-24-26-36/37

Do not breathe dust.
Avoid contact with skin.
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Wear suitable protective clothing and gloves.
Product Usage Statements
Storage and Shipping Information
Ship Code Shipped with Blue Ice or with Dry Ice
Toxicity Harmful
Storage +2°C to +8°C
Do not freeze Ok to freeze
Packaging Information
Transport Information
Supplemental Information
Global Trade Identification Number
Catalog Number GTIN


Proteinase K, Lyophilized SDS


Safety Data Sheet (SDS) 

Proteinase K, Lyophilized Certificates of Analysis

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High fidelity gene amplification
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  • Shannon M. Anderson, et al. (2007) New markers for murine memory B cells that define mutated and unmutated subsets. Journal of Experimental Medicine 204, 2103-2114.
  • Andrew A. Horwitz, et al. (2007) ATP-induced structural transitions in PAN, the proteasome-regulatory ATPase complex in Archaea. Journal of Biological Chemistry 282, 22921-22929.
  • User Protocols

    TB271 Proteinase K