5VPB

Transcription factor FosB/JunD bZIP domain in its oxidized form, type-I crystal

  • Classification: TRANSCRIPTION
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2017-05-04 Released: 2017-09-06 
  • Deposition Author(s): Yin, Z., Machius, M., Rudenko, G.
  • Funding Organization(s): National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA), Brain and Behavior Research Foundation

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Activator Protein-1: redox switch controlling structure and DNA-binding.

Yin, Z., Machius, M., Nestler, E.J., Rudenko, G.

(2017) Nucleic Acids Res 45: 11425-11436

  • DOI: 10.1093/nar/gkx795
  • Primary Citation of Related Structures:  
    5VPA, 5VPB, 5VPC, 5VPD, 5VPE, 5VPF

  • PubMed Abstract: 

    • The transcription factor, activator protein-1 (AP-1), binds to cognate DNA under redox control; yet, the underlying mechanism has remained enigmatic. A series of crystal structures of the AP-1 FosB/JunD bZIP domains reveal ordered DNA-binding regions in both FosB and JunD even in absence DNA ...

    The transcription factor, activator protein-1 (AP-1), binds to cognate DNA under redox control; yet, the underlying mechanism has remained enigmatic. A series of crystal structures of the AP-1 FosB/JunD bZIP domains reveal ordered DNA-binding regions in both FosB and JunD even in absence DNA. However, while JunD is competent to bind DNA, the FosB bZIP domain must undergo a large conformational rearrangement that is controlled by a 'redox switch' centered on an inter-molecular disulfide bond. Solution studies confirm that FosB/JunD cannot undergo structural transition and bind DNA when the redox-switch is in the 'OFF' state, and show that the mid-point redox potential of the redox switch affords it sensitivity to cellular redox homeostasis. The molecular and structural studies presented here thus reveal the mechanism underlying redox-regulation of AP-1 Fos/Jun transcription factors and provide structural insight for therapeutic interventions targeting AP-1 proteins.

    Organizational Affiliation: 

    Department of Pharmacology and Toxicology, and the Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX 77555, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein fosBC [auth A],
A [auth C]		68Homo sapiensMutation(s): 0 
Gene Names: FOSB, G0S3
UniProt & NIH Common Fund Data Resources
Find proteins for P53539 (Homo sapiens)
Explore P53539 
Go to UniProtKB:  P53539
PHAROS:  P53539
Entity Groups  
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UniProt GroupP53539
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Transcription factor jun-DD [auth B],
B [auth D]		68Homo sapiensMutation(s): 0 
Gene Names: JUND
UniProt & NIH Common Fund Data Resources
Find proteins for P17535 (Homo sapiens)
Explore P17535 
Go to UniProtKB:  P17535
PHAROS:  P17535
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP17535
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.825α = 90
b = 99.261β = 109.4
c = 49.86γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute on Drug Abuse (NIH/NIDA)United StatesR01 DA040621
Brain and Behavior Research FoundationUnited States--

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-06
    Type: Initial release
  • Version 1.1: 2017-10-18
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Database references
  • Version 1.3: 2019-12-11
    Changes: Author supporting evidence