FEN1

• Official Symbol: FEN1
• Official Name: flap structure-specific endonuclease 1
• Aliases and Previous Symbols: N/A
• Entrez ID: 2237
• UniProt: P39748
• Interactions: BioGRID
• PubMed articles: Open PubMed
• OMIM: Open OMIM

• Entrez Summary: N/A
• UniProt Summary: 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. {ECO:0000255|HAMAP-Rule:MF_03140, ECO:0000269|PubMed:10744741, ECO:0000269|PubMed:11986308, ECO:0000269|PubMed:18443037, ECO:0000269|PubMed:20729856, ECO:0000269|PubMed:7961795, ECO:0000269|PubMed:8621570}.

Pfam Domains GO Terms

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

• Essentiality Rank: 83
• Expression level (log2 read counts): 7.82

Expression Distribution

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FEN1 Expression in NALM6 Cells: 7.82