5F63

Crystal structure of the first bromodomain of human BRD4 in complex with SG3-179


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.159 
  • R-Value Work: 0.127 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Potent Dual BET Bromodomain-Kinase Inhibitors as Value-Added Multitargeted Chemical Probes and Cancer Therapeutics.

Ember, S.W.Lambert, Q.T.Berndt, N.Gunawan, S.Ayaz, M.Tauro, M.Zhu, J.Y.Cranfill, P.J.Greninger, P.Lynch, C.C.Benes, C.H.Lawrence, H.R.Reuther, G.W.Lawrence, N.J.Schonbrunn, E.

(2017) Mol Cancer Ther 16: 1054-1067

  • DOI: 10.1158/1535-7163.MCT-16-0568-T
  • Primary Citation of Related Structures:  
    5F5Z, 5F60, 5F61, 5F62, 5F63

  • PubMed Abstract: 
  • Synergistic action of kinase and BET bromodomain inhibitors in cell killing has been reported for a variety of cancers. Using the chemical scaffold of the JAK2 inhibitor TG101348, we developed and characterized single agents which potently and simultaneously inhibit BRD4 and a specific set of oncogenic tyrosine kinases including JAK2, FLT3, RET, and ROS1 ...

    Synergistic action of kinase and BET bromodomain inhibitors in cell killing has been reported for a variety of cancers. Using the chemical scaffold of the JAK2 inhibitor TG101348, we developed and characterized single agents which potently and simultaneously inhibit BRD4 and a specific set of oncogenic tyrosine kinases including JAK2, FLT3, RET, and ROS1. Lead compounds showed on-target inhibition in several blood cancer cell lines and were highly efficacious at inhibiting the growth of hematopoietic progenitor cells from patients with myeloproliferative neoplasm. Screening across 931 cancer cell lines revealed differential growth inhibitory potential with highest activity against bone and blood cancers and greatly enhanced activity over the single BET inhibitor JQ1. Gene drug sensitivity analyses and drug combination studies indicate synergism of BRD4 and kinase inhibition as a plausible reason for the superior potency in cell killing. Combined, our findings indicate promising potential of these agents as novel chemical probes and cancer therapeutics. Mol Cancer Ther; 16(6); 1054-67. ©2017 AACR .


    Organizational Affiliation

    Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida. ernst.schonbrunn@moffitt.org nicholas.lawrence@moffitt.org.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Bromodomain-containing protein 4A127Homo sapiensMutation(s): 0 
Gene Names: BRD4HUNK1
UniProt & NIH Common Fund Data Resources
Find proteins for O60885 (Homo sapiens)
Explore O60885 
Go to UniProtKB:  O60885
PHAROS:  O60885
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
5W2 (Subject of Investigation/LOI)
Query on 5W2

Download Ideal Coordinates CCD File 
B [auth A]4-[[4-[[3-(~{tert}-butylsulfonylamino)-4-chloranyl-phenyl]amino]-5-methyl-pyrimidin-2-yl]amino]-2-fluoranyl-~{N}-(1-methylpiperidin-4-yl)benzamide
C28 H35 Cl F N7 O3 S
RBZRCEPYYVFROZ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A], D [auth A]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
5W2 Binding MOAD:  5F63 Kd: 12 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.159 
  • R-Value Work: 0.127 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.89α = 90
b = 44.44β = 90
c = 78.75γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-08
    Type: Initial release
  • Version 1.1: 2017-04-05
    Changes: Database references
  • Version 1.2: 2017-06-14
    Changes: Database references