aryl hydrocarbon receptor
The information on this page was automatically extracted from online scientific databases.
From NCBI 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]
Ligand-activated transcriptional activator. Binds to the XRE promoter region of genes it activates (PubMed:10395741, PubMed:28602820, PubMed:7961644, PubMed:23275542, PubMed:30373764). Activates the expression of multiple phase I and II xenobiotic chemical metabolizing enzyme genes (such as the CYP1A1 gene) (PubMed:7961644). Mediates biochemical and toxic effects of halogenated aromatic hydrocarbons (PubMed:7961644). Involved in cell-cycle regulation (PubMed:12213388). Likely to play an important role in the development and maturation of many tissues (PubMed:12213388). Regulates the circadian clock by inhibiting the basal and circadian expression of the core circadian component PER1 (PubMed:28602820). 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 (PubMed:28602820).
From NCBI Gene:
- Retinitis pigmentosa 85
Retinitis pigmentosa 85 (RP85): A form of retinitis pigmentosa, a retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. RP85 is an autosomal recessive form manifesting as early-onset progressive difficulty to adapt in dim light and gradually decreasing visual acuity in both eyes. [MIM:618345]