Aliases for AHR Gene
External Ids for AHR Gene
Previous GeneCards Identifiers for AHR Gene
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. [provided by RefSeq, Sep 2015]
GeneCards Summary for AHR Gene
AHR (Aryl Hydrocarbon Receptor) is a Protein Coding gene. Diseases associated with AHR include toxic oil syndrome and eosinophilic fasciitis. Among its related pathways are Integrated Breast Cancer Pathway and Innate Lymphoid Cell Differentiation Pathways. GO annotations related to this gene include transcription factor activity, sequence-specific DNA binding and protein heterodimerization activity. An important paralog of this gene is AHRR.
UniProtKB/Swiss-Prot for AHR Gene
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.
Aryl hydrocarbon receptors (AHRs) are cytosolic transcription factors that exist bound to co-chaperones in the resting state. Ligand binding causes the co-chaperones to dissociate, allowing AHR to translocate to the nucleus, dimerize and alter transcription of target genes.