金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: FEN-1 Long Name: Flap Endonuclease 1 Entrez Gene IDs: 2237 (Human) Background: FEN-1 The FEN-1 enzyme is active in base excision repair (BER) pathways. Once the DNA glycosylase removes the desired nucleotide stretch, a DNA polymerase synthesizes the complementary nucleotides for replacement. To complete the DNA repair, the FEN-1 enzyme removes the extra flap of nucleotides and DNA ligase finishes the repair.