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Molecule Details

General Information of the Molecule
Name
Flap endonuclease 1 (FEN1)
Synonyms
FEN-1; DNase IV; Flap structure-specific endonuclease 1; Maturation factor 1; MF1; hFEN-1
Gene Name
FEN1
Gene ID
2237
Sequence
MGIQGLAKLIADVAPSAIRENDIKSYFGRKVAIDASMSIYQFLIAVRQGGDVLQNEEGET
TSHLMGMFYRTIRMMENGIKPVYVFDGKPPQLKSGELAKRSERRAEAEKQLQQAQAAGAE
QEVEKFTKRLVKVTKQHNDECKHLLSLMGIPYLDAPSEAEASCAALVKAGKVYAAATEDM
DCLTFGSPVLMRHLTASEAKKLPIQEFHLSRILQELGLNQEQFVDLCILLGSDYCESIRG
IGPKRAVDLIQKHKSIEEIVRRLDPNKYPVPENWLHKEAHQLFLEPEVLDPESVELKWSE
PNEEELIKFMCGEKQFSEERIRSGVKRLSKSRQGSTQGRLDDFFKVTGSLSSAKRKEPEP
KGSTKKKAKTGAAGKFKRGK
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Function
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.
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Uniprot ID
FEN1_HUMAN
EC Number
EC: 3.1.-.-
Pfam
PF00867 ; PF00752
KEGG ID
hsa2237
A List of Drug Combination(s) Able to Regulate This Molecule
          Expression Regulation     Click to Show/Hide the Drug Combination Regulating This Molecule
                 Down-regulation     Click to Show/Hide
                    Drug Combination 1 Down-regulating the Expression of This Molecule [1]
                    Detail(s)  Combination Info  click to show the detail info of this combination
                    Name Curcumin   NP Info  + Cisplatin   Drug Info 
                    Structure +
References
Reference 1 Curcumin sensitizes lung cancer cells to cisplatin-induced apoptosis through superoxide anion-mediated Bcl-2 degradation. Cancer Invest. 2009 Jul;27(6):624-35.
Cite NPCDR
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Correspondence

X. N. Sun, Y. T. Zhang, Y. Zhou, X. C. Lian, L. L. Yan, T. Pan, T. Jin, H. Xie, Z. M. Liang, W. Q. Qiu, J. X. Wang, Z. R. Li, F. Zhu*, X. B. Sui*. NPCDR: natural product-based drug combination and its disease-specific molecular regulation. Nucleic Acids Research. 50(D1): 1324-1333 (2020). PMID: 34664659

Prof. Feng ZHU  (zhufeng@zju.edu.cn)

College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China


Prof. Xinbing SUI  (hzzju@hznu.edu.cn)

School of Pharmacy and Department of Medical Oncology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China