4YO2

Structure of E2F8, an atypical member of E2F family of transcription factors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.073 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.272 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural insights into the DNA-binding specificity of E2F family transcription factors.

Morgunova, E.Yin, Y.Jolma, A.Dave, K.Schmierer, B.Popov, A.Eremina, N.Nilsson, L.Taipale, J.

(2015) Nat Commun 6: 10050-10050

  • DOI: 10.1038/ncomms10050

  • PubMed Abstract: 
  • The mammalian cell cycle is controlled by the E2F family of transcription factors. Typical E2Fs bind to DNA as heterodimers with the related dimerization partner (DP) proteins, whereas the atypical E2Fs, E2F7 and E2F8 contain two DNA-binding domains ...

    The mammalian cell cycle is controlled by the E2F family of transcription factors. Typical E2Fs bind to DNA as heterodimers with the related dimerization partner (DP) proteins, whereas the atypical E2Fs, E2F7 and E2F8 contain two DNA-binding domains (DBDs) and act as repressors. To understand the mechanism of repression, we have resolved the structure of E2F8 in complex with DNA at atomic resolution. We find that the first and second DBDs of E2F8 resemble the DBDs of typical E2F and DP proteins, respectively. Using molecular dynamics simulations, biochemical affinity measurements and chromatin immunoprecipitation, we further show that both atypical and typical E2Fs bind to similar DNA sequences in vitro and in vivo. Our results represent the first crystal structure of an E2F protein with two DBDs, and reveal the mechanism by which atypical E2Fs can repress canonical E2F target genes and exert their negative influence on cell cycle progression.


    Organizational Affiliation

    Department of Biosciences and Nutrition, Karolinska Institutet, SE 141 83 Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transcription factor E2F8
A
232Homo sapiensMutation(s): 0 
Gene Names: E2F8
Find proteins for A0AVK6 (Homo sapiens)
Go to Gene View: E2F8
Go to UniProtKB:  A0AVK6
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(P*TP*TP*TP*TP*CP*CP*CP*GP*CP*CP*AP*AP*AP*AP*A)-3')C15Homo sapiens
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (5'-D(P*TP*TP*TP*TP*TP*GP*GP*CP*GP*GP*GP*AP*AP*AP*A)-3')D15Homo sapiens
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.073 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.272 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 98.830α = 90.00
b = 98.830β = 90.00
c = 121.690γ = 120.00
Software Package:
Software NamePurpose
Cootmodel building
XDSdata reduction
XSCALEdata scaling
PHASERphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-09
    Type: Initial release
  • Version 1.1: 2015-12-16
    Type: Database references