7VNI

AHR-ARNT PAS-B heterodimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structural insight into the ligand binding mechanism of aryl hydrocarbon receptor.

Dai, S.Qu, L.Li, J.Zhang, Y.Jiang, L.Wei, H.Guo, M.Chen, X.Chen, Y.

(2022) Nat Commun 13: 6234-6234

  • DOI: https://doi.org/10.1038/s41467-022-33858-w
  • Primary Citation of Related Structures:  
    7VNA, 7VNH, 7VNI

  • PubMed Abstract: 

    The aryl hydrocarbon receptor (AHR), a member of the basic helix-loop-helix (bHLH) Per-Arnt-Sim (PAS) family of transcription factors, plays important roles in regulating xenobiotic metabolism, cellular differentiation, stem cell maintenance, as well as immunity. More recently, AHR has gained significant interest as a drug target for the development of novel cancer immunotherapy drugs. Detailed understanding of AHR-ligand binding has been hampered for decades by the lack of a three-dimensional structure of the AHR PAS-B domain. Here, we present multiple crystal structures of the Drosophila AHR PAS-B domain, including its apo, ligand-bound, and AHR nuclear translocator (ARNT) PAS-B-bound forms. Together with biochemical and cellular assays, our data reveal structural features of the AHR PAS-B domain, provide insights into the mechanism of AHR ligand binding, and provide the structural basis for the future development of AHR-targeted therapeutics.


  • Organizational Affiliation

    Department of Oncology, NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratory for Anticancer Drugs, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ahr homolog spinelessA [auth B],
C [auth A]
120Drosophila melanogasterMutation(s): 0 
Gene Names: ssCG6993
UniProt
Find proteins for E1JIM6 (Drosophila melanogaster)
Explore E1JIM6 
Go to UniProtKB:  E1JIM6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupE1JIM6
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Aryl hydrocarbon receptor nuclear translocatorB [auth D],
D [auth C]
111Mus musculusMutation(s): 0 
Gene Names: Arnt
UniProt & NIH Common Fund Data Resources
Find proteins for P53762 (Mus musculus)
Explore P53762 
Go to UniProtKB:  P53762
IMPC:  MGI:88071
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP53762
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.03α = 90
b = 55.553β = 103.05
c = 77.095γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data

  • Released Date: 2022-04-13 
  • Deposition Author(s): Dai, S.Y.

Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2022-04-13
    Type: Initial release
  • Version 1.1: 2022-11-02
    Changes: Database references
  • Version 1.2: 2023-11-29
    Changes: Data collection, Refinement description