4DON

Brd4 Bromodomain 1 complex with a fragment 3,4-Dihydro-3-methyl-2(1H)-quinazolinon

• PDB DOI: https://doi.org/10.2210/pdb4DON/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2012-02-09 Released: 2013-02-13 
• Deposition Author(s): Xiong, B., Cao, D.Y., Chen, W.Y., Chen, T.T., Xu, Y.C., Shen, J.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free: 
  0.218 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.201 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.202 (Depositor) 

Literature

Brd4 Bromodomain 1 complex with a fragment 3,4-Dihydro-3-methyl-2(1H)-quinazolinon

Xiong, B., Cao, D.Y., Chen, W.Y., Chen, T.T., Xu, Y.C., Shen, J.K.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 17.39 kDa 
• Atom Count: 1,187 
• Modelled Residue Count: 124 
• Deposited Residue Count: 145 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bromodomain-containing protein 4	A	145	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

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3PF	B [auth A]	3-methyl-3,4-dihydroquinazolin-2(1H)-one C9 H10 N2 O GINUUQLRYXHAPB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free:  0.218 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.201 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.202 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.84	α = 90
b = 47	β = 90
c = 78.73	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-02-13 
Deposition Author(s): Xiong, B., Cao, D.Y., Chen, W.Y., Chen, T.T., Xu, Y.C., Shen, J.K.

Revision History  

• Version 1.0: 2013-02-13
  Type: Initial release
  
• Version 1.1: 2019-12-25
  Changes: Data collection, Database references
• Version 1.2: 2024-03-20
  Changes: Data collection, Database references, Derived calculations