6DA1

ETS1 in complex with synthetic SRR mimic


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Biophysical Basis for Phosphorylation-Enhanced DNA-Binding Autoinhibition of the ETS1 Transcription Factor.

Perez-Borrajero, C.Lin, C.S.Okon, M.Scheu, K.Graves, B.J.Murphy, M.E.P.McIntosh, L.P.

(2019) J Mol Biol 431: 593-614

  • DOI: 10.1016/j.jmb.2018.12.011
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The eukaryotic transcription factor ETS1 is regulated by an intrinsically disordered serine-rich region (SRR) that transiently associates with the adjacent ETS domain to inhibit DNA binding. In this study, we further elucidated the physicochemical ba ...

    The eukaryotic transcription factor ETS1 is regulated by an intrinsically disordered serine-rich region (SRR) that transiently associates with the adjacent ETS domain to inhibit DNA binding. In this study, we further elucidated the physicochemical basis for ETS1 autoinhibition by characterizing the interaction of its ETS domain with a series of synthetic peptides corresponding to the SRR. Binding is driven by the hydrophobic effect and enhanced electrostatically by phosphorylation of serines adjacent to aromatic residues in the amphipathic SRR. Structural characterization of the dynamic peptide/protein complex by NMR spectroscopy and X-ray crystallography revealed multiple modes of binding that lead to autoinhibition by synergistically blocking the DNA-binding interface of the ETS domain and stabilizing an appended helical inhibitory module against allosterically induced unfolding. Consistent with these conclusions, the SRR peptide does not interact with DNA-bound ETS1. In addition, we found that the ETS1 SRR phosphopeptide binds to distantly related PU.1 in vitro, indicating that autoinhibition exploits features of the ETS domain that are conserved across this family of transcription factors.


    Related Citations: 
    • Phaser crystallographic software
      McCoy, A.J., Grosse-Kunstleve, R.W.
      (2007) J Appl Crystallogr 40: 658

    Organizational Affiliation

    Genome Sciences and Technology Program, University of British Columbia, Vancouver, BC, Canada V6T 1Z3; Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada V6T 1Z3; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z1; Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada V6T 1Z4. Electronic address: mcintosh@chem.ubc.ca.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein C-ets-1
A, B
140Mus musculusMutation(s): 0 
Gene Names: Ets1Ets-1
Find proteins for P27577 (Mus musculus)
Go to UniProtKB:  P27577
Protein Feature View
  • Reference Sequence
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
serine-rich region (SRR) peptide
C
17synthetic constructMutation(s): 0 
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
PF5
Query on PF5
CL-PEPTIDE LINKINGC9 H6 F5 N O2PHE
SEP
Query on SEP
CL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.217 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.33α = 90
b = 75.33β = 90
c = 115.331γ = 120
Software Package:
Software NamePurpose
MxDCdata collection
AutoProcessdata extraction
MOSFLMdata reduction
Aimlessdata scaling
TRUNCATEdata processing
PHASERphasing
Cootmodel building
PHENIXrefinement
Aimlessdata scaling
Aimlessdata processing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-01-16
    Type: Initial release
  • Version 1.1: 2019-02-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Author supporting evidence, Data collection