FEN1 è un gene codificato dal simbolo FEN1. Altri nomi includono: Flap endonuclease 1; FEN-1; DNase IV; Flap structure-specific endonuclease 1; Maturation factor 1; MF1; RAD2. FEN1 ha una massa di 42.59kDa e una lunghezza di amminoacidi di 380.
Offriamo 11 anticorpi contro FEN1, allevati nel Coniglio e Topo, che sono adatti per WB, IHC, ELISA, ICC/IF e IP con campioni derivati da Umano, Topo e Ratto.
Informazioni su geni e proteine
Riepilogo UniProt
Structure-specific nuclease with 5'-flap endonuclease and 5'-3' exonuclease activities involved in DNA replication and repair. During DNA replication, cleaves the 5'-overhanging flap structure that is generated by displacement synthesis when DNA polymerase encounters the 5'-end of a downstream Okazaki fragment. It enters the flap from the 5'-end and then tracks to cleave the flap base, leaving a nick for ligation. Also involved in the long patch base excision repair (LP-BER) pathway, by cleaving within the apurinic/apyrimidinic (AP) site-terminated flap. Acts as a genome stabilization factor that prevents flaps from equilibrating into structurs that lead to duplications and deletions. Also possesses 5'-3' exonuclease activity on nicked or gapped double-stranded DNA, and exhibits RNase H activity. Also involved in replication and repair of rDNA and in repairing mitochondrial DNA.
Sommario di Entrez
The protein encoded by this gene removes 5' overhanging flaps in DNA repair and processes the 5' ends of Okazaki fragments in lagging strand DNA synthesis. Direct physical interaction between this protein and AP endonuclease 1 during long-patch base excision repair provides coordinated loading of the proteins onto the substrate, thus passing the substrate from one enzyme to another. The protein is a member of the XPG/RAD2 endonuclease family and is one of ten proteins essential for cell-free DNA replication. DNA secondary structure can inhibit flap processing at certain trinucleotide repeats in a length-dependent manner by concealing the 5' end of the flap that is necessary for both binding and cleavage by the protein encoded by this gene. Therefore, secondary structure can deter the protective function of this protein, leading to site-specific trinucleotide expansions.
Somiglianze di sequenza
Belongs to the XPG/RAD2 endonuclease family. FEN1 subfamily.
Modifica post-translazionale
Acetylated by EP300. Acetylation inhibits both endonuclease and exonuclease activity. Acetylation also reduces DNA-binding activity but does not affect interaction with PCNA or EP300.
Posizione cellulare
Nucleus > Nucleolus. Nucleus > Nucleoplasm.
Resides mostly in the nucleoli and relocalizes to the nucleoplasm upon DNA damage.
