2MJV

Solution structures of second bromodomain of Brd4 with di-acetylated Twist peptide


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Disrupting the Interaction of BRD4 with Diacetylated Twist Suppresses Tumorigenesis in Basal-like Breast Cancer.

Shi, J.Wang, Y.Zeng, L.Wu, Y.Deng, J.Zhang, Q.Lin, Y.Li, J.Kang, T.Tao, M.Rusinova, E.Zhang, G.Wang, C.Zhu, H.Yao, J.Zeng, Y.X.Evers, B.M.Zhou, M.M.Zhou, B.P.

(2014) Cancer Cell 25: 210-225

  • DOI: 10.1016/j.ccr.2014.01.028

  • PubMed Abstract: 
  • Twist is a key transcription activator of epithelial-mesenchymal transition (EMT). It remains unclear how Twist induces gene expression. Here we report a mechanism by which Twist recruits BRD4 to direct WNT5A expression in basal-like breast cancer (B ...

    Twist is a key transcription activator of epithelial-mesenchymal transition (EMT). It remains unclear how Twist induces gene expression. Here we report a mechanism by which Twist recruits BRD4 to direct WNT5A expression in basal-like breast cancer (BLBC). Twist contains a "histone H4-mimic" GK-X-GK motif that is diacetylated by Tip60. The diacetylated Twist binds the second bromodomain of BRD4, whose first bromodomain interacts with acetylated H4, thereby constructing an activated Twist/BRD4/P-TEFb/RNA-Pol II complex at the WNT5A promoter and enhancer. Pharmacologic inhibition of the Twist-BRD4 association reduced WNT5A expression and suppressed invasion, cancer stem cell (CSC)-like properties, and tumorigenicity of BLBC cells. Our study indicates that the interaction with BRD4 is critical for the oncogenic function of Twist in BLBC.


    Organizational Affiliation

    Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40506, USA; Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY 40506, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Twist-related protein 1
A
12Homo sapiensGene Names: TWIST1 (BHLHA38, TWIST)
Find proteins for Q15672 (Homo sapiens)
Go to Gene View: TWIST1
Go to UniProtKB:  Q15672
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Bromodomain-containing protein 4
B
128Homo sapiensGene Names: BRD4 (HUNK1)
Find proteins for O60885 (Homo sapiens)
Go to Gene View: BRD4
Go to UniProtKB:  O60885
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ALY
Query on ALY
A
L-PEPTIDE LINKINGC8 H16 N2 O3LYS
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-01-16 
  • Released Date: 2014-03-19 
  • Deposition Author(s): Zeng, L., Zhou, M.

Revision History 

  • Version 1.0: 2014-03-19
    Type: Initial release