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P9290 Sigma

Proteinase K–Agarose from Tritirachium album

lyophilized powder



Related Categories Application Index, Biochemicals and Reagents, Enzymes, Inhibitors, and Substrates, Immobilized Enzymes, Modifying Enzymes,
form   lyophilized powder
extent of labeling   30-140 units per g solid
swelling   1 g swells to ~5 mL
storage temp.   −20°C


Biochem/physiol Actions

The application of proteinase K has been extended by immobilizing it on an insoluble matrix such as agarose. The agarose is quite inert in most systems and allows high activities per unit weight. This reactive resin allows the enzyme reaction to be quickly catalyzed by momentary contact with the substrate in a suitable medium. Reactions can be carried out in a batch slurry or even through a small column. In either case, the insoluble enzyme does not contaminate the reaction mix, which can be readily filtered out of the batch slurry or remain behind in the column.

Features and Benefits

• Recylable Proteinase K on matrix support.
• Spin column or batch processing possible.


10, 25 units in glass bottle

Unit Definition

One unit will hydrolyze urea-denatured hemoglobin to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per min at pH 7.5 at 37 °C (color by Folin-Ciocalteu reagent).

Physical form

Lyophilized powder stabilized with lactose


Proteinase K-agarose is used in protein and nucleic acid isolation, modifying enzymes and immobilized enzymes. Proteinase K-agarose has been used to study Klebsiella pneumonia as well as Echinococcus multilocularis infection in domesticated dogs.

Price and Availability

Biomedical Applications
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles
Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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