5VBQ

CRYSTAL STRUCTURE OF THE FIRST BROMODOMAIN OF HUMAN BRDT IN COMPLEX WITH BI2536


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.143 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Differential BET Bromodomain Inhibition by Dihydropteridinone and Pyrimidodiazepinone Kinase Inhibitors.

Karim, R.M.Bikowitz, M.J.Chan, A.Zhu, J.Y.Grassie, D.Becker, A.Berndt, N.Gunawan, S.Lawrence, N.J.Schonbrunn, E.

(2021) J Med Chem 

  • DOI: https://doi.org/10.1021/acs.jmedchem.1c01096
  • Primary Citation of Related Structures:  
    5V67, 5VBO, 5VBP, 5VBQ, 5VBR, 7BJY, 7K6G, 7K6H, 7KO0, 7L6D, 7L72, 7L73, 7L9G, 7L9J, 7L9K, 7L9L, 7LAH, 7LAI, 7LAJ, 7LAK, 7LAU, 7LAY, 7LAZ, 7LB4, 7LBT, 7LEJ, 7LEK, 7LEL, 7LEM

  • PubMed Abstract: 

    BRD4 and other members of the bromodomain and extraterminal (BET) family of proteins are promising epigenetic targets for the development of novel therapeutics. Among the reported BRD4 inhibitors are dihydropteridinones and benzopyrimidodiazepinones originally designed to target the kinases PLK1, ERK5, and LRRK2. While these kinase inhibitors were identified as BRD4 inhibitors, little is known about their binding potential and structural details of interaction with the other BET bromodomains. We comprehensively characterized a series of known and newly identified dual BRD4-kinase inhibitors against all eight individual BET bromodomains. A detailed analysis of 23 novel cocrystal structures of BET-kinase inhibitor complexes in combination with direct binding assays and cell signaling studies revealed significant differences in molecular shape complementarity and inhibitory potential. Collectively, the data offer new insights into the action of kinase inhibitors across BET bromodomains, which may aid the development of drugs to inhibit certain BET proteins and kinases differentially.


  • Organizational Affiliation

    Drug Discovery Department, Moffitt Cancer Center, Tampa, Florida 33612, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bromodomain testis-specific protein
A, B
113Homo sapiensMutation(s): 0 
Gene Names: BRDT
UniProt & NIH Common Fund Data Resources
Find proteins for Q58F21 (Homo sapiens)
Explore Q58F21 
Go to UniProtKB:  Q58F21
PHAROS:  Q58F21
GTEx:  ENSG00000137948 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ58F21
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
R78
Query on R78

Download Ideal Coordinates CCD File 
C [auth A],
O [auth B]
4-{[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl]amino}-3-methoxy-N-(1-methylpiperidin-4-yl)benzamide
C28 H39 N7 O3
XQVVPGYIWAGRNI-JOCHJYFZSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth A]
I [auth A]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
P [auth B],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
D [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Binding Affinity Annotations 
IDSourceBinding Affinity
R78 BindingDB:  5VBQ Kd: min: 105, max: 806 (nM) from 3 assay(s)
IC50: min: 260, max: 1400 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.172 
  • R-Value Work: 0.143 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.59α = 90
b = 31β = 96.9
c = 69.47γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
SERGUIdata collection
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)United StatesHD076542-01S1

Revision History  (Full details and data files)

  • Version 1.0: 2018-04-04
    Type: Initial release
  • Version 1.1: 2019-12-11
    Changes: Author supporting evidence
  • Version 1.2: 2021-11-17
    Changes: Database references
  • Version 1.3: 2023-10-04
    Changes: Data collection, Refinement description