5SY5

Crystal Structure of the Heterodimeric NPAS1-ARNT Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.180 

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Literature

NPAS1-ARNT and NPAS3-ARNT crystal structures implicate the bHLH-PAS family as multi-ligand binding transcription factors.

Wu, D.Su, X.Potluri, N.Kim, Y.Rastinejad, F.

(2016) Elife 5

  • DOI: 10.7554/eLife.18790
  • Primary Citation of Related Structures:  
    5SY5, 5SY7

  • PubMed Abstract: 
  • The neuronal PAS domain proteins NPAS1 and NPAS3 are members of the basic helix-loop-helix-PER-ARNT-SIM (bHLH-PAS) family, and their genetic deficiencies are linked to a variety of human psychiatric disorders including schizophrenia, autism spectrum disorders and bipolar disease ...

    The neuronal PAS domain proteins NPAS1 and NPAS3 are members of the basic helix-loop-helix-PER-ARNT-SIM (bHLH-PAS) family, and their genetic deficiencies are linked to a variety of human psychiatric disorders including schizophrenia, autism spectrum disorders and bipolar disease. NPAS1 and NPAS3 must each heterodimerize with the aryl hydrocarbon receptor nuclear translocator (ARNT), to form functional transcription complexes capable of DNA binding and gene regulation. Here we examined the crystal structures of multi-domain NPAS1-ARNT and NPAS3-ARNT-DNA complexes, discovering each to contain four putative ligand-binding pockets. Through expanded architectural comparisons between these complexes and HIF-1α-ARNT, HIF-2α-ARNT and CLOCK-BMAL1, we show the wider mammalian bHLH-PAS family is capable of multi-ligand-binding and presents as an ideal class of transcription factors for direct targeting by small-molecule drugs.


    Organizational Affiliation

    Integrative Metabolism Program, Sanford Burnham Prebys Medical Discovery Institute, Orlando, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Aryl hydrocarbon receptor nuclear translocatorA, C, E384Mus musculusMutation(s): 0 
Gene Names: Arnt
UniProt
Find proteins for P53762 (Mus musculus)
Explore P53762 
Go to UniProtKB:  P53762
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Neuronal PAS domain-containing protein 1B, D, F391Mus musculusMutation(s): 0 
Gene Names: Npas1
UniProt
Find proteins for P97459 (Mus musculus)
Explore P97459 
Go to UniProtKB:  P97459
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.180 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.948α = 90.38
b = 81.187β = 95.08
c = 138.062γ = 107.39
Software Package:
Software NamePurpose
HKL-3000data collection
HKL-3000data scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-3000data reduction
Cootmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-11-09
    Type: Initial release