Cited by 239Toxic Organic Pollutants ImpactPharmacogenetics and Drug MetabolismNuclear Receptors and Signaling

In vitro analysis of Ah receptor domains involved in ligand-activated DNA recognition.

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Dolwick, K M, Swanson, H I, Bradfield, C A·1993·Proceedings of the National Academy of Sciences

Abstract

The Ah receptor (AHR) is a basic helix-loop-helix protein that mediates the effects of 2,3,7,8-tetrachloro-dibenzo-p-dioxin. In this report, we describe a rabbit reticulocyte system that allows functional expression of both the AHR and its dimeric partner, the AHR nuclear translocator protein (ARNT). By using this in vitro system, we were able to reconstitute agonist binding to the AHR and agonist-induced AHR-ARNT recognition of a cognate DNA enhancer sequence. Expression of AHR deletion mutants revealed the location of N-terminal domains responsible for ligand and DNA recognition and C-terminal domains that play roles in agonist-induced DNA recognition.

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Crossref · 10.1073/pnas.90.18.8566

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37 of 37 references verified0 citation errors · 0 not checkable

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  • The AhrNG367R mutation lies in the PAS B domain near the predicted ligand and chaperone binding regions.

    “Based on previous domain mapping studies, this mutation occurs in the PAS B domain, near a region predicted to encode the ligand and chaperone binding domains (Figure 2, Figure 4) (Dolwick, Swanson, et al., 1993; Fukunaga & Hankinson, 1996).”

    From Rodent Genetic Models of Ah Receptor Signaling (2021) · cites this paper as Dolwick, Swanson, et al., 1993

  • The C-ter loop locates within a previously identified repressor region of approximately 200 residues that could be depressed by agonist-induced receptor transformation.

    “Interestingly, this C-ter loop also locates within a previously identified “repressor” region of ~ 200 residues that could be “depressed” by the agonist-induced receptor transformation16.”

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Authors
Dolwick, K. M., Swanson, H. I., & Bradfield, C. A.
Affiliations
Northwestern University (US)
Venue
Proceedings of the National Academy of Sciences
Published
1993-09-15
Volume
90
Issue
18
Pages
8566-8570
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1979697640
Cited by
239
References
37
Citations by year
2026: 2 · 2025: 1 · 2023: 4 · 2022: 4 · 2021: 5 · 2020: 4 · 2019: 1 · 2018: 7 · 2017: 6 · 2016: 2 · 2015: 3 · 2014: 6 · 2013: 4 · 2012: 3
FWCI
17.52
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (T32 CA09560, T32CA009560)
  • National Institute of Environmental Health Sciences (ES-05703, F32ES005589, ES-05589)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
aryl hydrocarbon receptor, ligand binding, DNA recognition, enhancers, bHLH transcription factors, 2,3,7,8-tetrachlorodibenzo-p-dioxin
MeSH terms
Polychlorinated Dibenzodioxins, Animals, Base Sequence, Binding Sites, Codon, DNA, Ligands, Molecular Sequence Data, Oligodeoxyribonucleotides, Rabbits, Receptors, Drug, Reticulocytes, Transcription, Genetic, Protein Biosynthesis, Blotting, Western, Polymerase Chain Reaction, Mutagenesis, Site-Directed, Sequence Deletion, Receptors, Aryl Hydrocarbon, Mice

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