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Dec 31st Santa Cruz will discontinue a
large number of polyclonal products as
a result of the USDA settlement that was
made public May 19th.

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REACTIVITY SENSITIVITY MW (kDa) SOURCE
100 Rabbit

Product Usage Information

Storage: Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

AhR Antibody recognizes endogenous levels of total AhR protein.


Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human AhR protein. Antibodies are purified by protein A and peptide affinity chromatography.

The aryl hydrocarbon receptor (AhR) is a ligand activated transcription factor involved in xenobiotic metabolism, cell cycle regulation, and development in response to both endogenous and environmental signals (1,2). AhR was initially identified as a receptor for dioxins, which are environmental pollutants generated by waste incineration and other industrial processes (3,4). AhR ligands include polycyclic aromatic hydrocarbons, including the carcinogen benzo(a)pyrene and other components of cigarette smoke (3,4). Naturally occurring AhR ligands include flavonoids, which are aromatic plant secondary compounds commonly found in vegetables and fruits (3). Cytoplasmic aryl hydrocarbon receptors are found in protein complexes with heat shock proteins. Upon ligand binding, AhR dissociates from heat shock proteins and translocate to the nucleus where it dimerizes with AhR nuclear translocator (ARNT, HIF-1β). The AhR/ARNT heterodimer binds to nuclear xenobiotic response elements to control the expression of genes associated with xenobiotic metabolism, including several cytochrome P450 genes (5,6). AhR is ubiquitously expressed and is thought to play a role in regulation of cell proliferation and differentiation, cytokine expression, and xenobiotic metabolism (2). Research studies link AhR activity with the control of regulatory T-cell and T-helper 17 cell differentiation, regulation of the inflammatory response, and the onset of lung cancer (1,2,7,8).


1.  Quintana, F.J. (2013) Immunology 138, 183-9.

2.  Tsay, J.J. et al. (2013) Anticancer Res 33, 1247-56.

3.  Denison, M.S. and Nagy, S.R. (2003) Annu Rev Pharmacol Toxicol 43, 309-34.

4.  Poland, A. and Knutson, J.C. (1982) Annu Rev Pharmacol Toxicol 22, 517-54.

5.  Denison, M.S. et al. (2002) Chem Biol Interact 141, 3-24.

6.  Beischlag, T.V. et al. (2008) Crit Rev Eukaryot Gene Expr 18, 207-50.

7.  Quintana, F.J. et al. (2008) Nature 453, 65-71.

8.  Hayden, M.S. and Ghosh, S. (2004) Genes Dev 18, 2195-224.


Entrez-Gene Id 196
Swiss-Prot Acc. P35869


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Tween is a registered trademark of ICI Americas, Inc.

13790
AhR Antibody