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N8630 Sigma

Nuclease P1 from Penicillium citrinum

lyophilized powder, ≥200 units/mg protein (E1%/280, 3′-5′-Phosphodiesterase)

Synonym: Endonuclease P1

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Properties

Related Categories 3.1.x.x Acting on esters, 3.x.x.x Hydrolases, Application Index, Biochemicals and Reagents, Cell Biology,
form   lyophilized powder
secondary activity   ≥1,000 units/mg protein 3′-nucleotidase
packaging   vial of ≥250 units (using RNA substrate)
storage temp.   2-8°C

Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Biochem/physiol Actions

Catalyzes the nonspecific endonucleolytic cleavage of single stranded DNA and RNA to yield nucleoside 5′-phosphates and 5′-phosphooligonucleotides. It does not appreciably degrade double-stranded nucleic acids, especially in the presence of more than 400 mM sodium chloride at pH 6.0.

General description

Nuclease P1 from Penicillium citrinum is a zinc-dependent endonuclease that exhibits increased activity in the presence of low concentrations of urea.

Unit Definition

3′-5′-Phosphodiesterase: One unit will liberate 1.0 μmole of acid soluble nucleotides from RNA per min at pH 5.3 at 37 °C.
3′-Nucleotidase: One unit will hydrolyze 1.0 μmole of orthophosphate from 3′-AMP per min at pH 7.2 at 37 °C.

Application

Nuclease P1 from Penicillium citrinum has been used in a study to assess crystal structures using ammonium sulphate or polyethylene glycol 4000 as a precipitating agent. It has also been used in a study to investigate a method for the direct sequence analysis 20-25 nucleotides from the terinini of 5′ or 3′ end group labeled RNA.

Nuclease P1 is used to improve the sensitivity of a 32P-labeling method for the detection of DNA adducts.

The enzyme has an optimal temperature of approximately 70 °C, but for a long incubation, a temperature below 60 °C is more suitable. It is stable in the pH range of 5 - 8.

Physical properties

A zinc dependent glycoprotein consisting of 270 amino acid residues. Molecular mass: 42-50 kDa.

Price and Availability


All labs need water

Biomedical Applications
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
Product N8630 (Nuclease P1 from Penicillium citrinum is a lyophilized powder. How should I store solutions of this enzyme?
A solution of Nuclease P1 that has been reconstituted in 20 mM sodium acetate buffer (pH 5.3), 5 mM ZnCl2, and 50 mM sodium chloride can be stored for the short term at 2-8 °C for 2-3 weeks. For longer term storage, at -20 °C, one suggestion is to add 40-50% glycerol after reconstitution in the aqueous buffer. Such solutions (with glycerol added) may be stored for 3-6 months at -20 °C.
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Protocols & Articles

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Peer-Reviewed Papers
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References

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