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Lambda Exonuclease

Catalog # Concentration Size List Price Quantity Your Price
M0262L 5000 units/ml 5000 units $461.00
$414.90
M0262S 5000 units/ml 1000 units $115.00
$103.50
Catalog # Size List Price Your Price
M0262L 5000 units $461.00
$414.90
M0262S 1000 units $115.00
$103.50
Catalog #
Qty:
 
*On-line ordering is for Canadian customers only. Web pricing is applicable only to orders placed online at www.neb.ca

  • DNA specific exonuclease
  • Catalyzes the removal of nucleotides from linear or nicked double-stranded DNA in the 5' to 3' direction
  • Highly processive degradation of double-stranded DNA from the 5' end
  • Preferred substrate is 5'-phosphorylated double-stranded DNA although non-phosphorylated substrates are degraded at a greatly reduced rate
  • Need help finding the right exonuclease for your experiments? Try Exo Selector 

Lambda Exonuclease is ideal for:

  • Conversion of linear double-stranded DNA to single-stranded DNA via preferred activity on 5'-phosphorylated ends
Featured Videos
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  • Monarch_MiniprepProtocol_VideoThumb
    What are exonucleases and their applications?
Highlights
Isolated from a recombinant source
Highly processive 5'→3' exonuclease
Supplied in 10X Reaction Buffer
Product Source
A genetic fusion of the E. coli Lambda Exonuclease gene with the gene encoding maltose binding protein (MBP). Following affinity chromatography, Lambda Exonuclease is cleaved from the fusion construct and purified away from MBP. 
Reagents Supplied

The following reagents are supplied with this product:

NEB # Component Name Component # Stored at (°C) Amount Concentration
  Lambda Exonuclease M0262SVIAL -20 1 x 0.2 ml 5,000 units/ml
  Lambda Exonuclease Reaction Buffer B0262SVIAL -20 1 x 1.5 ml 10 X
  Lambda Exonuclease M0262LVIAL -20 1 x 1 ml 5,000 units/ml
  Lambda Exonuclease Reaction Buffer B0262SVIAL -20 1 x 1.5 ml 10 X

Properties & Usage

Unit Definition

One unit is defined as the amount of enzyme required to produce 10 nmol of acid-soluble deoxyribonucleotide from double-stranded substrate in a total reaction volume of 50 μl in 30 minutes at 37°C in 1X Lambda Exonuclease Reaction Buffer with 1 μg sonicated duplex [3H]-DNA.

Reaction Conditions

1X Lambda Exonuclease Reaction Buffer
Incubate at 37°C

1X Lambda Exonuclease Reaction Buffer
67 mM Glycine-KOH
2.5 mM MgCl2
50 µg/ml BSA
(pH 9.4 @ 25°C)

Usage Concentration

5,000 units/ml

Storage Buffer

25 mM Tris-HCl
50 mM NaCl
1 mM DTT
0.1 mM EDTA
50% Glycerol
pH 8 @ 25°C

Heat Inactivation

75°C for 10 minutes

Molecular Weight

Theoretical: 28000 daltons

Specific Activity

50,000 units/mg

Companion Products
Notes

  • The activity of Lambda Exonuclease in various buffers is listed below:

    • NEBuffer 1 - 15%
    • NEBuffer 2 - 40%
    • NEBuffer 3 -10%
    • NEBuffer 4 - 40%
    • CutSmart – 50%
    • Exonuclease I Reaction Buffer- 100%
    • Thermopol Reaction Buffer -100%
  • 5´-OH ends are digested 20X slower than 5´-PO4 ends. ssDNA is digested 100X slower than dsDNA.   
References
  • Little, J.W. (1981). Gene Amplif. Anal. 2, 135-145.
Quality Control Assay
Quality Control tests are performed on each new lot of NEB product to meet the specifications designated for it. Specifications and individual lot data from the tests that are performed for this particular product can be found and downloaded on the Product Specification Sheet, Certificate of Analysis, data card or product manual. Further information regarding NEB product quality can be found here.
Specifications
The Specification sheet is a document that includes the storage temperature, shelf life and the specifications designated for the product. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]
Certificate of Analysis
The Certificate of Analysis (COA) is a signed document that includes the storage temperature, expiration date and quality controls for an individual lot. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]_[Lot Number]
Safety Data Sheets
Legal And Disclaimer

Products and content are covered by one or more patents, trademarks and/or copyrights owned or controlled by New England Biolabs, Inc (NEB). The use of trademark symbols does not necessarily indicate that the name is trademarked in the country where it is being read; it indicates where the content was originally developed. The use of this product may require the buyer to obtain additional third-party intellectual property rights for certain applications. For more information, please email busdev@neb.com.

This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

New England Biolabs (NEB) is committed to practicing ethical science – we believe it is our job as researchers to ask the important questions that when answered will help preserve our quality of life and the world that we live in. However, this research should always be done in safe and ethical manner. Learn more.

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