HomeFAQsCan Klenow Fragment (3'→5' exo-) be used to fill in 3' overhangs?
FAQ: Can Klenow Fragment (3'→5' exo-) be used to fill in 3' overhangs?
No, DNA polymerases cannot fill in 3' overhangs. To create blunt ends 3' overhangs must be removed. DNA Polymerase I, Large (Klenow) Fragment (NEB# M0210 ), T4 DNA Polymerase (NEB# M0203 ) or Mung Bean Nuclease (NEB# M0250) are the best choices to remove 3' overhangs.
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