Anti-Aryl hydrocarbon Receptor/AHR Antibody Picoband® Fluoro647 Conjugated

The aryl hydrocarbon receptor (AhR or AHR or ahr or ahR) is a protein that in humans is encoded by the AHR gene. It is mapped to 7p21.1. The protein encoded by this gene is a ligand-activated helix-loop-helix transcription factor involved in the regulation of biological responses to planar aromatic hydrocarbons. This receptor has been shown to regulate xenobiotic-metabolizing enzymes such as cytochrome P450. Before ligand binding, the encoded protein is sequestered in the cytoplasm; upon ligand binding, this protein moves to the nucleus and stimulates transcription of target genes.

Ligand-activated transcriptional activator. Binds to the XRE promoter region of genes it activates. Activates the expression of multiple phase I and II xenobiotic chemical metabolizing enzyme genes (such as the CYP1A1 gene) . Mediates biochemical and toxic effects of halogenated aromatic hydrocarbons. Involved in cell-cycle regulation. Likely to play an important role in the development and maturation of many tissues. Regulates the circadian clock by inhibiting the basal and circadian expression of the core circadian component PER1. Inhibits PER1 by repressing the CLOCK-ARNTL/BMAL1 heterodimer mediated transcriptional activation of PER1. The heterodimer ARNT:AHR binds to core DNA sequence 5'-TGCGTG-3' within the dioxin response element (DRE) of target gene promoters and activates their transcription.

1. Le Beau, M. M., Carver, L. A., Espinosa, R., III, Schmidt, J. V., Bradfield, C. A. Chromosomal localization of the human AHR locus encoding the structural gene for the Ah receptor to 7p21-p15. Cytogenet. Cell Genet. 66: 172-176, 1994. 2. Rentas, S., Holzapfel, N. T., Belew, M. S., Pratt, G. A., Voisin, V., Wilhelm, B. T., Bader, G. D., Yeo, G. W., Hope, K. J. Musashi-2 attenuates AHR signalling to expand human haematopoietic stem cells. Nature 532: 508-511, 2016. 3. Schiering, C., Wincent, E., Metidji, A., Iseppon, A., Li, Y., Potocnik, A. J., Omenetti, S., Henderson, C. J., Wolf, C. R., Nebert, D. W., Stockinger, B. Feedback control of AHR signalling regulates intestinal immunity. Nature 542: 242-245, 2017.