Product Class: Restriction Endonuclease

DpnII
Gray property icon for NEBU recombinant time saver Gray property icon for dilB Gray property icon for incubation temperature 37° Gray property icon for heat inactivation 65° dam Epi

DpnII has been reformulated with Recombinant Albumin (rAlbumin) beginning with Lot #10174818. Learn more.

NEB restriction endonuclease that recognizes the sequence ^GATC_
Isoschizomers | Single Letter Code

Product Introduction

  • Time-Saver™ qualified for digestion in 5-15 minutes
  • Restriction Enzyme Cut Site: /GATC
Bioz Badge Exists : True
Catalog # Size Concentration
R0543S 1000 units 10000 units/ml
R0543T 1000 units 50000 units/ml
R0543L 5000 units 10000 units/ml
R0543M 5000 units 50000 units/ml

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Product Information

Description

Product Source

An E. coli strain that carries the DpnII gene from Diplococcus pneumoniae G41 (S. Lacks).
This product is related to the following categories:
Methylation Sensitive and Methylation Dependent Restriction Enzymes for Epigenetics,
Restriction Enzymes for Epigenetic Analysis,
Restriction Endonucleases C G,
DNA Methylation Analysis,
Time-Saver Qualified Restriction Enzymes,
This product can be used in the following applications:
Fast Cloning: Accelerate your cloning workflows with reagents from NEB,
Restriction Enzyme Digestion

Reagents Supplied

Reagents Supplied

The following reagents are supplied with this product:

NEB # Component Name Component # Stored at (°C) Amount Concentration

Properties & Usage

Unit Definition

One unit is defined as the amount of enzyme required to digest 1 µg of λ DNA (dam-) in 1 hour at 37°C in a total reaction volume of 50 µl.

Reaction Conditions

1X NEBuffer™ DpnII
Incubate at 37°C

1X NEBuffer™ DpnII
50 mM Bis-Tris-HCl
100 mM NaCl
10 mM MgCl2
0.1 mM DTT
(pH 6 @ 25°C)

Activity in NEBuffers

NEBuffer™ r1.1: 25%
NEBuffer™ r2.1: 25%
NEBuffer™ r3.1: 100%
rCutSmart™ Buffer: 25%

Diluent Compatibility

Storage Buffer

10 mM Tris-HCl
300 mM NaCl
1 mM DTT
0.1 mM EDTA
500 µg/ml Recombinant Albumin
50% Glycerol
pH 7.4 @ 25°C

Heat Inactivation

65°C for 20 minutes

Methylation Sensitivity

dam methylation: Blocked
dcm methylation: Not Sensitive
CpG Methylation: Not Sensitive

Product Notes

  1. DpnII and Sau3AI are isoschizomers of MboI.
  2. Cleaves to leave a 5´ GATC extension which can be efficiently ligated to DNA fragments generated by BamHI, BclI, BglII, MboI, Sau3AI and BstYI.
  3. This enzyme is blocked by dam methylation. More information can be found at Dam-Dcm and CpG Methylation.
  4. Will exhibit star activity in NEBuffer r3.1. We recommend the use of NEB DpnII Unique Buffer.

Tools & Resources

Selection Charts

Web Tools

FAQs & Troubleshooting

FAQs

  1. Do I have to set-up digests with Time-Saver™ qualified enzymes for 5-15 minutes? Can I digest longer?
  2. Is this enzyme sensitive to dam, dcm or mammalian CpG methylation?
  3. Which NEB restriction enzymes are supplied with Gel Loading Dye, Purple (6X)?
  4. Can Gel Loading Dye, Purple 6X (B7024) be stored in cold temperatures?

Troubleshooting

Tech Tips

This enzyme will not cut plasmids isolated from most E.coli because it is blocked by dam methylation. For enzyme cleavage to occur, plasmids must be transformed and isolated from a dam-, dcm- strain of E.coli, such as NEB’s dam-/dcm- Competent E.coli (NEB #C2925).

Quality, Safety & Legal

Quality Assurance Statement

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.

Specification Change Notifications

Effective September 28, 2026, 2 vials of buffer will be included.

DpnII has been reformulated with Recombinant Albumin (rAlbumin) beginning with Lot #10174818. All subsequent (higher number) lots will contain rAlbumin. For additional information, please visit at NEB Restriction Enzyme formulations with Recombinant Albumin (rAlbumin).

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 DataSheets

The following is a list of Safety Data Sheet (SDS) that apply to this product to help you use it safely.

Legal and Disclaimers

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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