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F6928 Sigma-Aldrich

Monoclonal Anti-FKHR (FOXO1a) antibody produced in mouse

clone FKH 117, purified immunoglobulin, buffered aqueous solution



Related Categories Alphabetical Index, Antibodies, Antibodies for Epigenetics and Nuclear Signaling, Antibodies for Gene Regulation, Antibodies to Common Transcription Factors,
conjugate   unconjugated
clone   FKH 117, monoclonal
biological source   mouse
application(s)   immunoprecipitation (IP): suitable
  indirect ELISA: suitable
  microarray: suitable
  western blot: 0.5-1 μg/mL using total extract of COS-7 cells transfected with FKHR expression plasmid
species reactivity   human
mol wt   antigen 70-75 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   purified immunoglobulin
isotype   IgG1
Quality Level   200
antibody product type   primary antibodies
UniProt accession no.   Q12778
Gene Information   human ... FOXO1(2308)


General description

FKHR belongs to the superfamily of forkhead transcription factors (FOX). It is characterized by a common Forkhead (or winged helix) domain, a variant of the helix-turn-helix motif. FKHR contains three residues, Thr24, Ser256, and Ser319 that lie within consensus sequences for phosphorylation by protein kinase B (PKB).

Monoclonal Anti-FKHR (FOXO1a) (mouse IgG1 isotype) is derived from the FKH117 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from BALB/c mice immunized with a synthetic peptide corresponding to human FKHR, conjugated to KLH.


synthetic peptide corresponding to human FKHR (amino acids 636-651), conjugated to KLH.


Monoclonal Anti-FKHR (FOXO1a) antibody is suitable for immunoblot assay to study the down-regulation of both p16INK4A and p14ARF expression, and immunoblot of SKMCs and HSMM cells in a study of stable ectopic expression of PAX3-FKHR in low passage primary human skeletal muscle cells. It is also suitable for microarray and indirect ELISA.

Monoclonal Anti-FKHR antibody has been used in:
• immunoblotting
• enzyme linked immunosorbent assay (ELISA)
• immunoprecipitation

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


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.


200 μL in glass bottle

Biochem/physiol Actions

FKHR plays a key regulatory roles in embryonic development, differentiation, apoptosis, and tumorigenesis. It was first identified at chromosomal breakpoints in human tumors and consequently linked to tumorigenesis. The activity of FKHR is regulated by growth factors via the PKB/PI3K pathway. The expression of FKHR is inhibited through phosphorylation by PKB. Within the nucleus, the dephosphorylated FKHRL1 induces expression of target genes such as Fas ligand, and triggers apoptosis. It is involved in apoptosis, glucose homeostasis, cell cycle regulation and as a nuclear receptor co factor. It has been found that FKHR also play a role in endometrial differentiation via the protein kinase A (PKA) pathway.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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