Generation of the BfiI restriction endonuclease from the fusion of a DNA recognition domain to a non-specific nuclease from the phospholipase D superfamily.


The BfiI endonuclease cleaves DNA at fixed positions downstream of an asymmetric sequence. Unlike other restriction enzymes, it functions without metal ions. The N-terminal half of BfiI is similar to Nuc, an EDTA-resistant nuclease from Salmonella typhimurium that belongs to the phosphoplipase D superfamily. Nuc is a dimer with one active site at its… (More)


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