4PKY, 1X0O, 2A24, 2B02, 2HV1, 2K7S, 3F1N, 3F1O, 3F1P, 3H7W, 3H82, 4EQ1, 4GHI, 4GS9, 4H6J, 4LPZ, 4XT2
405
11863
ENSG00000143437
ENSMUSG00000015522
P27540
P53762
NM_178427NM_001350224NM_001350225NM_001350226
NM_001037737NM_009709
NP_001337153NP_001337154NP_001337155
NP_001032826NP_033839
The ARNT gene encodes the aryl hydrocarbon receptor nuclear translocator protein that forms a complex with ligand-bound aryl hydrocarbon receptor (AhR), and is required for receptor function. The encoded protein has also been identified as the beta subunit of a heterodimeric transcription factor, hypoxia-inducible factor 1 (HIF1). A t(1;12)(q21;p13) translocation, which results in a TEL–ARNT fusion protein, is associated with acute myeloblastic leukemia. Three alternatively spliced variants encoding different isoforms have been described for this gene.
The aryl hydrocarbon receptor (AhR) is involved in the induction of several enzymes that participate in xenobiotic metabolism. The ligand-free, cytosolic form of the aryl hydrocarbon receptor is complexed to heat shock protein 90. Binding of ligand, which includes dioxin and polycyclic aromatic hydrocarbons, results in translocation of the ligand-binding subunit only into[verification needed] the nucleus. Induction of enzymes involved in xenobiotic metabolism occurs through binding of the ligand-bound AhR to xenobiotic responsive elements in the promoters of genes for these enzymes.
Aryl hydrocarbon receptor nuclear translocator has been shown to interact with:
This article incorporates text from the United States National Library of Medicine, which is in the public domain.