Aryl hydrocarbon receptor nuclear translocator

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.

ARNT
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesARNT, HIF-1-beta, HIF-1beta, HIF1-beta, HIF1B, HIF1BETA, TANGO, bHLHe2, aryl hydrocarbon receptor nuclear translocator
External IDsOMIM: 126110 MGI: 88071 HomoloGene: 1261 GeneCards: ARNT
Gene location (Human)
Chr.Chromosome 1 (human)[1]
Band1q21.3Start150,809,713 bp[1]
End150,876,708 bp[1]
RNA expression pattern




More reference expression data
Orthologs
SpeciesHumanMouse
Entrez

405

11863

Ensembl

ENSG00000143437

ENSMUSG00000015522

UniProt

P27540

P53762

RefSeq (mRNA)

NM_001037737
NM_009709

RefSeq (protein)

NP_001032826
NP_033839

Location (UCSC)Chr 1: 150.81 – 150.88 MbChr 3: 95.43 – 95.5 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

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[5] 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.

Interactions

Aryl hydrocarbon receptor nuclear translocator has been shown to interact with:

References

  1. GRCh38: Ensembl release 89: ENSG00000143437 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000015522 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Hughes, D.; Guttenplan, J. B.; Marcus, C. B.; Subbaramaiah, K.; Dannenberg, A. J. (2008). "Heat Shock Protein 90 Inhibitors Suppress Aryl Hydrocarbon Receptor-Mediated Activation of CYP1A1 and CYP1B1 Transcription and DNA Adduct Formation". Cancer Prevention Research. 1 (6): 485–493. doi:10.1158/1940-6207.CAPR-08-0149. PMC 2680610. PMID 19138996.
  6. Carver LA, Bradfield CA (April 1997). "Ligand-dependent interaction of the aryl hydrocarbon receptor with a novel immunophilin homolog in vivo". J. Biol. Chem. 272 (17): 11452–6. doi:10.1074/jbc.272.17.11452. PMID 9111057.
  7. Kazlauskas A, Sundström S, Poellinger L, Pongratz I (April 2001). "The hsp90 chaperone complex regulates intracellular localization of the dioxin receptor". Mol. Cell. Biol. 21 (7): 2594–607. doi:10.1128/MCB.21.7.2594-2607.2001. PMC 86890. PMID 11259606.
  8. Lindebro MC, Poellinger L, Whitelaw ML (July 1995). "Protein-protein interaction via PAS domains: role of the PAS domain in positive and negative regulation of the bHLH/PAS dioxin receptor-Arnt transcription factor complex". EMBO J. 14 (14): 3528–39. doi:10.1002/j.1460-2075.1995.tb07359.x. PMC 394421. PMID 7628454.
  9. Whitelaw M, Pongratz I, Wilhelmsson A, Gustafsson JA, Poellinger L (April 1993). "Ligand-dependent recruitment of the Arnt coregulator determines DNA recognition by the dioxin receptor". Mol. Cell. Biol. 13 (4): 2504–14. doi:10.1128/MCB.13.4.2504. PMC 359572. PMID 8384309.
  10. Yamaguchi Y, Kuo MT (October 1995). "Functional analysis of aryl hydrocarbon receptor nuclear translocator interactions with aryl hydrocarbon receptor in the yeast two-hybrid system". Biochem. Pharmacol. 50 (8): 1295–302. doi:10.1016/0006-2952(95)02016-6. PMID 7488247.
  11. Mimura J, Ema M, Sogawa K, Fujii-Kuriyama Y (January 1999). "Identification of a novel mechanism of regulation of Ah (dioxin) receptor function". Genes Dev. 13 (1): 20–5. doi:10.1101/gad.13.1.20. PMC 316371. PMID 9887096.
  12. Hogenesch JB, Chan WK, Jackiw VH, Brown RC, Gu YZ, Pray-Grant M, Perdew GH, Bradfield CA (March 1997). "Characterization of a subset of the basic-helix-loop-helix-PAS superfamily that interacts with components of the dioxin signaling pathway". J. Biol. Chem. 272 (13): 8581–93. doi:10.1074/jbc.272.13.8581. PMID 9079689.
  13. Woods SL, Whitelaw ML (March 2002). "Differential activities of murine single minded 1 (SIM1) and SIM2 on a hypoxic response element. Cross-talk between basic helix-loop-helix/per-Arnt-Sim homology transcription factors". J. Biol. Chem. 277 (12): 10236–43. doi:10.1074/jbc.M110752200. PMID 11782478.
  14. Beischlag TV, Wang S, Rose DW, Torchia J, Reisz-Porszasz S, Muhammad K, Nelson WE, Probst MR, Rosenfeld MG, Hankinson O (June 2002). "Recruitment of the NCoA/SRC-1/p160 family of transcriptional coactivators by the aryl hydrocarbon receptor/aryl hydrocarbon receptor nuclear translocator complex". Mol. Cell. Biol. 22 (12): 4319–33. doi:10.1128/mcb.22.12.4319-4333.2002. PMC 133867. PMID 12024042.
  15. Probst MR, Fan CM, Tessier-Lavigne M, Hankinson O (February 1997). "Two murine homologs of the Drosophila single-minded protein that interact with the mouse aryl hydrocarbon receptor nuclear translocator protein". J. Biol. Chem. 272 (7): 4451–7. doi:10.1074/jbc.272.7.4451. PMID 9020169.
  16. Ooe N, Saito K, Mikami N, Nakatuka I, Kaneko H (January 2004). "Identification of a novel basic helix-loop-helix-PAS factor, NXF, reveals a Sim2 competitive, positive regulatory role in dendritic-cytoskeleton modulator drebrin gene expression". Mol. Cell. Biol. 24 (2): 608–16. doi:10.1128/mcb.24.2.608-616.2004. PMC 343817. PMID 14701734.
  17. Moffett P, Reece M, Pelletier J (September 1997). "The murine Sim-2 gene product inhibits transcription by active repression and functional interference". Mol. Cell. Biol. 17 (9): 4933–47. doi:10.1128/mcb.17.9.4933. PMC 232345. PMID 9271372.

Further reading

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