Restriction Endonucleases

Restriction Endonucleases

The Leader in the Discovery and Production of Restriction Enzymes

With over 40 years of offering restriction enzymes to the research community, NEB has earned the reputation of being a leader in enzyme technologies. Working continuously to be worthy of that distinction, NEB strives to develop enzymes of the highest purity and unparalleled performance.

NEB scientists continue to improve its portfolio of restriction enzymes, as well as explore their utility in new technologies. As a result, NEB scientists continue to publish scientific papers and to be awarded grants in this area. With the industry’s largest research and development group dedicated to restriction enzymes, we are proud to have been there first: the first to commercialize a recombinant enzyme, the first to introduce a nicking enzyme, and the first to supply a true restriction enzyme master mix. In addition, NEB has an ongoing history of innovation by engineering restriction enzymes with altered specificities and improved performance. Through continued research in these areas, we are committed to driving the innovations that allow us to offer maximum convenience and performance.

For details on NEB’s quality controls for restriction endonucleases, visit our Restriction Enzyme Quality page.



All of NEB's Restriction enzymes have transitioned to a new buffer system. Visit NEBCutSmart.com for further details.

Convenience

  • >210 restriction enzymes are 100% active in a single buffer – CutSmart™ Buffer.
  • 193 restriction enzymes are Time-Saver qualified, meaning you can digest DNA in 5-15 minutes, or digest DNA safely overnight.
  • Choose from 283 restriction enzymes, the largest selection commercially available.
  1. NEB TV Episode 15

    These days, restriction enzymes are being used in many more applications other than cloning. Learn more in this episode of NEB TV.

  2. Type II Restriction Enzymes

    Type II restriction enzymes are most commonly used for molecular biology applications, as they recognize stereotypical sequences and produce a predictable cleavage pattern. Learn more about how Type II REs work.

  3. Type I Restriction Enzymes

    Type I restriction enzymes are a group of endonucleases that recognize a bipartite sequence, but do not produce a predictable cleavage pattern. Learn more about how Type I REs work.

  4. Type III Restriction Enzymes

    Type III restriction enzymes are a group of endonucleases that recognize a non-pallindromic sequence, comprising two inversely oriented sites. Learn more about these poorly understood enzymes.



Restriction Endonucleases includes these subcategories:

Restriction Endonucleases

New Restriction Enzyme Trading Cards