4HBY

Crystal Structure of the first bromodomain of human BRD4 in complex with a quinazolin ligand


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Identification of a Chemical Probe for Bromo and Extra C-Terminal Bromodomain Inhibition through Optimization of a Fragment-Derived Hit.

Fish, P.V.Filippakopoulos, P.Bish, G.Brennan, P.E.Bunnage, M.E.Cook, A.S.Federov, O.Gerstenberger, B.S.Jones, H.Knapp, S.Marsden, B.Nocka, K.Owen, D.R.Philpott, M.Picaud, S.Primiano, M.J.Ralph, M.J.Sciammetta, N.Trzupek, J.D.

(2012) J.Med.Chem. 55: 9831-9837

  • DOI: 10.1021/jm3010515
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The posttranslational modification of chromatin through acetylation at selected histone lysine residues is governed by histone acetyltransferases (HATs) and histone deacetylases (HDACs). The significance of this subset of the epigenetic code is inter ...

    The posttranslational modification of chromatin through acetylation at selected histone lysine residues is governed by histone acetyltransferases (HATs) and histone deacetylases (HDACs). The significance of this subset of the epigenetic code is interrogated and interpreted by an acetyllysine-specific protein-protein interaction with bromodomain reader modules. Selective inhibition of the bromo and extra C-terminal domain (BET) family of bromodomains with a small molecule is feasible, and this may represent an opportunity for disease intervention through the recently disclosed antiproliferative and anti-inflammatory properties of such inhibitors. Herein, we describe the discovery and structure-activity relationship (SAR) of a novel, small-molecule chemical probe for BET family inhibition that was identified through the application of structure-based fragment assessment and optimization techniques. This has yielded a potent, selective compound with cell-based activity (PFI-1) that may further add to the understanding of BET family function within the bromodomains.


    Organizational Affiliation

    Pfizer Worldwide Medicinal Chemistry, Pfizer Worldwide R&D , Ramsgate Road, Sandwich CT13 9NJ, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bromodomain-containing protein 4
A
127Homo sapiensMutation(s): 0 
Gene Names: BRD4 (HUNK1)
Find proteins for O60885 (Homo sapiens)
Go to Gene View: BRD4
Go to UniProtKB:  O60885
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
13F
Query on 13F

Download SDF File 
Download CCD File 
A
3-methyl-2-oxo-N-phenyl-1,2,3,4-tetrahydroquinazoline-6-sulfonamide
C15 H15 N3 O3 S
MUQCGKPYCUDNMX-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
13FIC50: 4400 nM (99) BINDINGDB
13FIC50: 4400 nM BINDINGMOAD
13FIC50: 4400 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.185 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.700α = 90.00
b = 48.470β = 90.00
c = 61.340γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
MOSFLMdata reduction
SCALAdata scaling
CrystalCleardata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2012-10-31
    Type: Initial release
  • Version 1.1: 2012-11-14
    Type: Database references
  • Version 1.2: 2012-12-12
    Type: Database references