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Merck
CN

ABE1828

Sigma-Aldrich

Anti-FOXK2 Antibody

serum, from rabbit

Synonym(s):

Forkhead box protein K2, Cellular transcription factor ILF-1, FOXK1, Interleukin enhancer-binding factor 1, FOXK2

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

Key Documents

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biological source

rabbit

Quality Level

100

conjugate

unconjugated

antibody form

serum

antibody product type

primary antibodies

clone

polyclonal

species reactivity

human

technique(s)

immunoprecipitation (IP): suitable
western blot: suitable

NCBI accession no.

NP_004505

UniProt accession no.

Q01167

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... FOXK2(3607)

General description

Forkhead box protein K2 (UniProt Q01167; also known as FOXK2, Cellular transcription factor ILF-1, Interleukin enhancer-binding factor 1) is encoded by the FOXK2 (also known as ILF, ILF-1, ILF1) gene (Gene ID 3607) in human. FOXK2 is a transcription factor involved in cell proliferation and survival. FOXK1 and FOXK2 belong to the family of Fox transcription factors characterized by the forkhead DNA-binding domains. However, FOXK1 and FOXK2 can be distinguished from other Fox transcription factors by the presence of the forkhead-associated (FHA) domains. FOXK2 interacts with BRCA1-associated protein 1 (BAP1) through the FHA domain in a BAP1 Thr493 phosphorylation-dependent manner. BAP1 in turn recruits HCF-1, thereby forming a ternary complex at the FOXK2 target genes sites, where BAP1 represses FOXK2 target genes expression in a BAP1 DUB activity-dependent manner.
~78 kDa observed. Isoform 1 (69.1 kDa calculated); Isoform 2 (64.3 kDa calculated).

Immunogen

Epitope: C-terminal
Recombinant protein corresponding to the C-terminal region of human FOXK2.

Application

Immunoprecipitation Analysis: A representative lot immunoprecipitated FOXK2 in HeLa nuclear extract (Data courtesy of El Bachir Affar, University of Montreal).
Western Blotting Analysis: A representative lot detected FOXK2 in tag-affinity purified BAP1 complex from HeLa cells expressing Flag-HA-tagged wild-type BAP1 or catalytically dead C91S BAP1 mutant (Mashtalir, N., et al. (2014). Mol. Cell. 54(3):392-406).
Research Category
Epigenetics & Nuclear Function
Research Sub Category
Nuclear Receptors
This Anti-FOXK2 Antibody is validated for use in Western Blotting, Immunoprecipitation for the detection of FOXK2 .

Biochem/physiol Actions

Expected to react with isoforms 1&2, but not isoform 3.

Physical form

Rabbit polyclonal serum with 0.05% sodium azide.
Unpurified

Preparation Note

Stable for 1 year at -20°C from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Analysis Note

Evaluated by Western Blotting in HeLa nuclear extract.

Western Blotting Analysis: A 1:500 dilution of this antibody detected FOXK2 in 10 µg of HeLa nuclear extract.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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White Paper: Further considerations of antibody validation and usage.
Characterization of Estrogen Receptor α Phosphorylation Sites in Breast Cancer Tissue Using the SNAP i.d® 2.0 System

A major focus of breast cancer research is to understand the mechanisms responsible for disease progression and drug resistance. Toward that end, it has been found that approximately two thirds of all human breast carcinomas overexpress the Estrogen Receptor α (ERα) protein and it remains the primary pharmacological target for endocrine therapy1,2. The normal cellular function of ERα is as a transcription factor that mediates a wide variety of physiological processes, many of which are dependent upon phosphorylation of the receptor at specific amino acid residues3,4. Indeed, ERα is known to be phosphorylated at a multitude of different sites, yet how these all correlate to disease remains unclear5. Here, we interrogated multiple sites of ERα for phosphorylation status by screening an extensive panel of different breast cancer patient samples and other non-breast cancer tissue microarray (TMA) slide samples to determine their relevance to disease.

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