Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 16.14 kDa 
• Atom Count: 1128 
• Modelled Residue Count: 140 
• Deposited Residue Count: 140 
• Unique protein chains: 2

2MJV

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

• PDB DOI: 10.2210/pdb2MJV/pdb
• BMRB: 19738

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Mutation(s): No 


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

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Experimental Data Snapshot

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

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

• PubMed: 24525235 
• DOI: 10.1016/j.ccr.2014.01.028
• Primary Citation of Related Structures:  
  2MJV


• 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 (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.

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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; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, and Collaborative Innovation Center of Cancer Medicine, Guangzhou 510060, China. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Twist-related protein 1	A	12	Homo sapiens	Mutation(s): 0  Gene Names: TWIST1, BHLHA38, TWIST
UniProt & NIH Common Fund Data Resources
Find proteins for Q15672 (Homo sapiens) Explore Q15672  Go to UniProtKB:  Q15672
PHAROS:  Q15672 GTEx:  ENSG00000122691

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Bromodomain-containing protein 4	B	128	Homo sapiens	Mutation(s): 0  Gene Names: BRD4, HUNK1
UniProt & NIH Common Fund Data Resources
Find proteins for O60885 (Homo sapiens) Explore O60885  Go to UniProtKB:  O60885
PHAROS:  O60885 GTEx:  ENSG00000141867

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
ALY	A	L-PEPTIDE LINKING	C8 H16 N2 O3		LYS

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2MJV Olderado

Structure Validation

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