Having supplied restriction enzymes to the research community for over 40 years, NEB has earned the reputation of being the leader in enzyme technologies. Working continuously to be worthy of that distinction, NEB strives to develop enzymes of the highest purity and unparalleled quality.
Reduce Star Activity with High-Fidelity Restriction Enzymes
Time-Saver Protocol for Restriction Enzyme Digests
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CutSmart Restriction Enzyme Buffer
Restriction Enzyme Digest Protocol: Cutting Close to DNA End
Restriction Enzyme Digestion Problem: DNA Smear on Agarose Gel
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Double Digestion with NEBcloner
Ordering InformationDid you know this product can be customized or purchased in larger volumes? Submit an inquiry to find out more about customization options.
SpeI has a High Fidelity version SpeI-HF® (NEB #R3133).
High Fidelity (HF) Restriction Enzymes have 100% activity in CutSmart Buffer; single-buffer simplicity means more straightforward and streamlined sample processing. HF enzymes also exhibit dramatically reduced star activity. HF enzymes are all Time-Saver qualified and can therefore cut substrate DNA in 5-15 minutes with the flexibility to digest overnight without degradation to DNA. Engineered with performance in mind, HF restriction enzymes are fully active under a broader range of conditions, minimizing off-target products, while offering flexibility in experimental design.
Product SourceAn E. coli strain that carries the SpeI gene from Sphaerotilus species (ATCC 13923).
The following reagents are supplied with this product:
Store at (°C) Concentration Gel Loading Dye, Purple (6X) 25 10 X CutSmart® Buffer -20 10 X
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