1MD0

CRYSTAL STRUCTURE OF AN INHIBITED FRAGMENT OF Ets-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Analysis of the Autoinhibition of Ets-1 and Its Role in Protein Partnerships

Garvie, C.W.Pufall, M.A.Graves, B.J.Wolberger, C.

(2002) J.Biol.Chem. 277: 45529-45536

  • DOI: 10.1074/jbc.M206327200
  • Primary Citation of Related Structures:  1MDM

  • PubMed Abstract: 
  • The DNA-binding activity of the eukaryotic transcription factor Ets-1 (E26 avian erythroblastosis virus oncogene-E twenty-six) is negatively regulated by inhibitory regions that flank the ETS domain. Based on the results of solution studies, these N- ...

    The DNA-binding activity of the eukaryotic transcription factor Ets-1 (E26 avian erythroblastosis virus oncogene-E twenty-six) is negatively regulated by inhibitory regions that flank the ETS domain. Based on the results of solution studies, these N- and C-terminal inhibitory regions have been proposed to pack against the ETS domain and form an autoinhibitory module whose N terminus partially unfolds upon binding of Ets-1 to DNA. Mutations that disrupt autoinhibition of DNA binding also cause a structural change in the inhibitory region. We report here a crystallographic study of fragments of Ets-1 that provide structural details of the inhibitory module and the structural transition that accompanies DNA binding. The structures of free and DNA-bound Ets-1 fragments containing the ETS domain and the inhibitory regions confirm that the N-terminal inhibitory region contains two alpha-helices one of which unfolds upon Ets-1 binding to DNA. The observations from the crystal structure, coupled with mutagenesis experiments, allow us to propose a model for the inhibited form of Ets-1 and lend insight into the flexible interaction between Ets-1 and the acute myeloid leukemia 1 protein, AML1 (RUNX1).


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry and the Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205-2185, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-ets-1 protein
A, B
141Mus musculusGene Names: Ets1 (Ets-1)
Find proteins for P27577 (Mus musculus)
Go to UniProtKB:  P27577
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 53.350α = 90.00
b = 66.670β = 90.00
c = 83.510γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
AMoREphasing
CNSrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance