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 worth of that distinction, NEB strives to develop enzyme of the highest purity and unparalleled quality.
- 100% activity in CutSmart® Buffer (over 210 enzymes are available in the same buffer) allowing for easier double digests
- Specificity to epigenetically-relevant DNA modifications (5-mC and 5-hmC)
Reduce Star Activity with High-Fidelity Restriction Enzymes
Standard 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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Restriction Enzyme Digest Problem: Too Many DNA Bands
Double Digestion with NEBcloner
LpnPI, an EpiMark® validated product, is a modification-dependent endonuclease which recognizes CmCDG sites and generates a double-stranded DNA break on the 3´ side of the modified cytosine at N10/N14. Recognized cytosine modifications include C5-methylation (5-mC) and C5-hydroxymethylation (5-hmC) (1).
This enzyme is provided with an Enzyme Activator Solution which may be used for efficient digestion by LpnPI.
The most common epigenetic modifications found in eukaryotic organisms are methylation marks at CpG or CHG sites. A subset of these modified sites are recognized and cleaved by LpnPI.
At fully methylated CpG sites:
5´ . . . C mC G G . . . 3´
3´ . . . G G mC C . . . 5´
or CHG sites:
5´ . . . CmC D G G . . . 3´
3´ . . . G G H mC C . . . 5´
H = A or C or T (not G)
D = A or G or T (not C)
LpnPI recognizes each hemi-methylated site individually and cleaves bidirectionally to generate 32-base or 31-base fragments, respectively. These fragments contain the central methylated site and have 4-base 5´ overhangs at each end. LpnPI does not cleave unmodified DNA.
Product SourceAn E. coli strain that carries the synthetic LpnPI gene from Legionella pneumophila species Philadelphia 1.
The following reagents are supplied with this product:
Store at (°C) Concentration CutSmart® Buffer 10 X Enzyme Activator Solution -20 30 X
- Product Categories:
- Methylation Dependent Restriction Enzymes for Epigenetics,
- Restriction Enzymes for Epigenetic Analysis (EpiMark® Validated),
- Epigenetic Analysis (EpiMark® Validated) Products ,
- Restriction Endonucleases: H-M
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