FEN1 Antibody

FEN1 Polyclonal Antibody for IF, IHC, IP, WB, ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat





Cat no : 14768-1-AP


DNase IV, FEN 1, FEN1, Flap endonuclease 1, flap structure endonuclease 1, hFEN 1, Maturation factor 1, MF1, RAD2

Tested Applications

Positive WB detected inNIH/3T3 cells, HeLa cells, U-937 cells
Positive IP detected inNIH/3T3 cells
Positive IHC detected inhuman colon cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inNIH/3T3 cells

Recommended dilution

Western Blot (WB)WB : 1:500-1:3000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for IP and 1:500-1:1000 for WB
Immunohistochemistry (IHC)IHC : 1:20-1:200
Immunofluorescence (IF)IF : 1:50-1:500
Sample-dependent, check data in validation data gallery

Published Applications

WBSee 1 publications below

Product Information

14768-1-AP targets FEN1 in WB, IP, IHC, IF, ELISA applications and shows reactivity with human, mouse, rat samples.

Reactivity human, mouse, rat
Cited Species human
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen FEN1 fusion protein Ag6552
Full Name flap structure-specific endonuclease 1
Calculated molecular weight 43 kDa
Observed molecular weight 48 kDa
GenBank accession number BC000323
Gene symbol FEN1
Gene ID (NCBI) 2237
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

FEN1(Flap endonuclease-1) is the prototypical member of the 5’-nuclease superfamily, whose activities span a range of cellular pathways involved in DNA replication and genome maintenance (PMID: 22118811, 21496641, 20929870). FEN1 is a structure-selective metallonuclease essential for Okazaki fragment maturation through efficient removal of 5’ flaps resulting from strand displacement during lagging-strand synthesis (PMID: 8144677, 9081985). FEN1 is overexpressed in multiple cancer types, and has been suggested both as a biomarker relating to prognosis and disease progression and as a potential therapeutic target (PMID: 19010819, 16879693, 19596913, 27526030).


Product Specific Protocols
WB protocol for FEN1 antibody 14768-1-APDownload protocol
IHC protocol for FEN1 antibody 14768-1-APDownload protocol
IF protocol for FEN1 antibody 14768-1-APDownload protocol
IP protocol for FEN1 antibody 14768-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



DNA Repair (Amst)

Synergistic antitumor effect of combined paclitaxel with FEN1 inhibitor in cervical cancer cells.

Authors - Lingfeng He

J Mol Cell Biol

SUMO-1 modification of FEN1 facilitates its interaction with Rad9-Rad1-Hus1 to counteract DNA replication stress.

Authors - Xiaoli Xu