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Genta-ExoI exonuclease I, 20,000 units/ml

Genta-ExoI exonuclease I hydrolyzes single-stranded DNA in the 3'→ 5' direction, releasing deoxyribonucleoside 5'-monophosphate. It does not cleave DNA chains whose 3’-end is blocked by a phosphoryl or acetyl group. Active in the PCR buffer.

Isolated from a strain of Escherichia coli expressing the exonuclease I gene of E.coli.