6UCL

Transcription factor deltaFosB bZIP domain self-assembly, type-I crystal


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.271 
  • R-Value Observed: 0.272 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Self-assembly of the bZIP transcription factor Delta FosB.

Yin, Z.Venkannagari, H.Lynch, H.Aglyamova, G.Bhandari, M.Machius, M.Nestler, E.J.Robison, A.J.Rudenko, G.

(2020) Curr Res Struct Biol 2: 1-13

  • DOI: 10.1016/j.crstbi.2019.12.001
  • Primary Citation of Related Structures:  
    6UCI, 6UCL, 6UCM

  • PubMed Abstract: 
  • ΔFosB is a highly stable transcription factor that accumulates in specific brain regions upon chronic exposure to drugs of abuse, stress, or seizures, and mediates lasting behavioral responses. ΔFosB reportedly heterodimerizes with JunD forming a canonical bZIP leucine zipper coiled coil that clamps onto DNA ...

    ΔFosB is a highly stable transcription factor that accumulates in specific brain regions upon chronic exposure to drugs of abuse, stress, or seizures, and mediates lasting behavioral responses. ΔFosB reportedly heterodimerizes with JunD forming a canonical bZIP leucine zipper coiled coil that clamps onto DNA. However, the striking accumulation of ΔFosB protein in brain upon chronic insult has brought its molecular status into question. Here, we demonstrate through a series of crystal structures that the ΔFosB bZIP domain self-assembles into stable oligomeric assemblies that defy the canonical arrangement. The ΔFosB bZIP domain also self-assembles in solution, and in neuron-like Neuro 2a cells it is trapped into molecular arrangements that are consistent with our structures. Our data suggest that, as ΔFosB accumulates in brain in response to chronic insult, it forms non-canonical assemblies. These species may be at the root of ΔFosB's striking protein stability, and its unique transcriptional and behavioral consequences.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein fosBA68Homo sapiensMutation(s): 0 
Gene Names: FOSBG0S3
UniProt & NIH Common Fund Data Resources
Find proteins for P53539 (Homo sapiens)
Explore P53539 
Go to UniProtKB:  P53539
PHAROS:  P53539
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download Ideal Coordinates CCD File 
B [auth A], C [auth A], D [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.271 
  • R-Value Observed: 0.272 
  • Space Group: F 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.506α = 90
b = 51.956β = 90
c = 150.454γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
PHASERphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesR01 DA040621

Revision History  (Full details and data files)

  • Version 1.0: 2020-01-15
    Type: Initial release
  • Version 1.1: 2020-07-01
    Changes: Database references