MfeI

Companion Products

• Nuclease-free Water
• MfeI-HF®
• Monarch® Plasmid Miniprep Kit 
• Monarch® DNA Gel Extraction Kit
• Monarch® PCR & DNA Cleanup Kit (5 μg)

Materials Sold Separately

• CutSmart® Buffer

1. MfeI is an isoschizomer of MunI.
2. Not sensitive to CpG, dcm, or dam methylation.
3. Star activity may result from extended digestion.

1. Optimizing Restriction Endonuclease Reactions
2. Double Digest Protocol with Standard Restriction Enzymes
3. Restriction Digest Protocol

• Activity at 37°C for Restriction Enzymes with Alternate Incubation Temperatures
• Activity of Restriction Enzymes in PCR Buffers
• Alteration of Apparent Recognition Specificities Using Methylases
• Cleavage Close to the End of DNA Fragments
• Digestion of Agarose-Embedded DNA: Info for Specific Enzymes
• Double Digests
• Heat Inactivation
• Reduced Star Activities of HF® Enzymes
• Restriction Endonucleases - Survival in a Reaction
• Restriction Enzyme Diluent Buffer Compatibility
• Restriction Enzyme Tips
• Single Letter Codes
• Star Activity

• Alphabetized List of Recognition Specificities
• Compatible Cohesive Ends and Generation of New Restriction Sites
• Cross Index of Recognition Sequences
• Dam-Dcm and CpG Methylation
• Frequencies of Restriction Sites
• Isoschizomers
• NEB Diluent and Buffer Table
• Recleavable Filled-in 5' Overhangs
• Time-Saver™ Qualified Enzymes

• DNA Sequences and Maps Tool

• Double Digest Finder
• Enzyme Finder
• NEBcutter V2.0
• NEBioCalculator
• REBASE

1. Is MfeI inhibited by salt?
2. Does MfeI have trouble cleavin PCR products?
3. What is the difference between MfeI and MunI, the isoschizomer it replaced.
4. What is the molecular weight of MfeI?
5. Does MfeI have single sites in common vectors?
6. What is the activity of MfeI at 25°C?
7. My enzyme is no longer Time-Saver™ qualified. What happened?
8. I tested your restriction enzyme on the substrate DNA recommended by NEB, and it appears to be active, however it does not digest my DNA. What could be the reason?
9. Why is my Restriction Enzyme not cutting DNA?
10. Why do I see a DNA smear on an agarose gel after a restriction digest?
11. Why do I see additional DNA bands on my gel after a restriction digest?
12. How many nucleotides do I have to add adjacent to the RE recognition site in order to get efficient cutting?
13. Is this enzyme sensitive to dam, dcm or mammalian CpG methylation?

Product Citation Tool

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.

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]

• R0589S_L_v1
• R0589S_L_v2

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]

• R0589S_L_v1_0081402
• R0589S_L_v1_0081407
• R0589S_L_v1_0081404
• R0589S_L_v1_0081409
• R0589S_L_v1_0081411
• R0589S_L_v1_0071212
• R0589S_L_v1_0081305
• R0589S_L v1_0081311
• R0589S_L_v1_0081503
• R0589S_L_v1_0081509
• R0589S_L_v1_0081510
• R0589S_L_v1_0081602
• R0589S_L_v1_0081604
• R0589S_L_v1_0081607
• R0589S_L_v2_0081611
• R0589S_L_v2_0081703
• R0589S_L_v2_0081705
• R0589S_L_v2_0081710
• R0589S_L_v2_0081712
• R0589S_L_v2_0081803
• R0589L_v2_10012877
• R0589S_v2_10012879
• R0589L_v2_10021707
• R0589L_v2_10028201
• R0589S_v2_10028199
• R0589L_v2_10034798
• R0589S_v2_10034800
• R0589L_v2_10043669
• R0589S_v2_10043671
• R0589L_v2_10052857
• R0589S_v2_10052860
• R0589L_v2_10064278
• R0589S_v2_10064280
• R0589L_v2_10073966
• R0589S_v2_10076924
• R0589L_v2_10079179
• R0589S_v2_10082142

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

• MfeI
• CutSmart® Buffer

This product is covered by one or more patents, trademarks and/or copyrights owned or controlled by New England Biolabs, Inc (NEB).

While NEB develops and validates its products for various applications, the use of this product may require the buyer to obtain additional third party intellectual property rights for certain applications.

For more information about commercial rights, please contact NEB's Global Business Development team at [email protected].

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.