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Restriction endonuclease PvuII and similar nucleases The type II restriction endonuclease PvuII recognizes and cleaves the DNA sequence 5'-CAG|CTG-3' leaving blunt ends (| denotes the cleavage site). It belongs to a superfamily of nucleases including very short patch repair (Vsr) endonucleases, archaeal Holliday junction resolvases, MutH methyl-directed DNA mismatch-repair endonucleases, and catalytic domains of many restriction endonucleases, such as EcoRI, BamHI, and FokI.
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