McrBC is an endonuclease which cleaves DNA containing methylcytosine* on one or both strands. Sites on the DNA recognized by McrBC consist of two half-sites of the form (G/A)mC. These half-sites can be separated by up to 3 kb, but the optimal separation is 55-103 base pairs.

*5-methylcytosine or 5-hydroxymethylcytosine

• McrBC requires GTP for DNA cleavage
• Supplied with NEBuffer 2, Recombinant Albumin and 100x GTP