Description
Proteinase K, lyophilised, is a broad-spectrum serine protease supplied at a minimum activity of 30 U/mg for molecular biology workflows. Identified by CAS number 39450-01-6 and EG nr. 254-457-8, this enzyme is widely applied in DNA and RNA isolation protocols where efficient digestion of proteins and inactivation of nucleases are required. The lyophilised presentation supports convenient storage and reconstitution immediately before use. Offered from manufacturer Carl ROTH, Proteinase K integrates readily into established isolation kits and custom buffer systems. Its robust proteolytic activity under denaturing conditions makes it a standard choice when clearing protein-rich lysates prior to downstream amplification, sequencing, or hybridisation assays.
This article belongs on Enzymes & substrates, in Biochemicals & reagents.
Key features
- Appearance: white powder
- Specific activity: ≥30 U/mg
- DNases, RNases: not detected
- CAS number: 39450-01-6
- Pack sizes: 100 mg, 1 g, 5 g, 500 mg, 25 mg
- EG nr.: 254-457-8
- Storage temperature: -20 °C
- Form: Lyophilised
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Proteinase K, lyophil., min 30 U/mg, 25 mg, glass
What is this article?
Proteinase K, lyophil., min 30 U/mg, 25 mg, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Enzymes & substrates, inside Biochemicals & reagents, in Life Science & Microbiology.
An enzyme is sold by activity, in units defined by a stated reaction, not only by milligrams. Source and specific activity are the specification. A substrate is the molecule that enzyme converts, often a chromogenic one so the reaction can be seen. Units from two suppliers are comparable only when the definition matches.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
Which category should I open next?
The category is Biochemicals & reagents. The sub-category is Enzymes & substrates. The catalogue is Life Science & Microbiology.
Shelves beside this one are Amino acids & peptides, Carbohydrates & sugars, Coenzymes, nucleotides & vitamins, Biochemicals (other), Antibiotics & antimycotics, Lipids, steroids & fatty acids and Detergents & surfactants.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.