• My NEB
  • Print
  • PDF
  • FAQ: Can DNA Polymerase I, Large (Klenow) Fragment be used in labeling reactions and partial fill in reactions?

    The 3'→5' exonuclease of DNA Polymerase I (E. coli), Large (Klenow) Fragment makes these reactions difficult to control so Klenow Fragment (3'→5') exo- (NEB# M0212) is recommended instead.