FAQ: How close to the ends of DNA can Thermolabile USER II Enzyme (NEB #M5508) cleave?

Thermolabile USER® II Enzyme will cleave a deoxyuracil in as little as 3 base pairs from the 5’ end of double-stranded or at least 12 nucleotides from the 5’ end of single-stranded DNA. 

Thermolabile USER II Enzyme will cleave a deoxyuracil in as little as 3 base pairs from the 5’ end of double-stranded or at least 6 nucleotides from the 3’ end of single-stranded DNA. 

Please refer to Cleavage of deoxyuracil close to the ends of dsDNA and ssDNA for more information.