7NQJ

C-TERMINAL BROMODOMAIN OF HUMAN BRD2 WITH N-ethyl-2-(1-methyl-1H-1,2,3-triazol-4-yl)-6-(1-phenylethyl)isonicotinamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Template-Hopping Approach Leads to Potent, Selective, and Highly Soluble Bromo and Extraterminal Domain (BET) Second Bromodomain (BD2) Inhibitors.

Aylott, H.E.Atkinson, S.J.Bamborough, P.Bassil, A.Chung, C.W.Gordon, L.Grandi, P.Gray, J.R.J.Harrison, L.A.Hayhow, T.G.Messenger, C.Mitchell, D.Phillipou, A.Preston, A.Prinjha, R.K.Rianjongdee, F.Rioja, I.Seal, J.T.Wall, I.D.Watson, R.J.Woolven, J.M.Demont, E.H.

(2021) J Med Chem 64: 3249-3281

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c02156
  • Primary Citation of Related Structures:  
    7NQ5, 7NQ7, 7NQ8, 7NQ9, 7NQI, 7NQJ

  • PubMed Abstract: 

    A number of reports have recently been published describing the discovery and optimization of bromo and extraterminal inhibitors which are selective for the second bromodomain (BD2); these include our own work toward GSK046 ( 3 ) and GSK620 ( 5 ). This paper describes our approach to mitigating the genotoxicity risk of GSK046 by replacement of the acetamide functionality with a heterocyclic ring. This was followed by a template-hopping and hybridization approach, guided by structure-based drug design, to incorporate learnings from other BD2-selective series, optimize the vector for the amide region, and explore the ZA cleft, leading to the identification of potent, selective, and bioavailable compounds 28 (GSK452), 39 (GSK737), and 36 (GSK217).


  • Organizational Affiliation

    Epigenetics Discovery Performance Unit, GlaxoSmithKline, Medicines Research Centre, Stevenage, Hertfordshire SG1 2NY, U.K.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bromodomain-containing protein 2115Homo sapiensMutation(s): 0 
Gene Names: BRD2KIAA9001RING3
UniProt & NIH Common Fund Data Resources
Find proteins for P25440 (Homo sapiens)
Explore P25440 
Go to UniProtKB:  P25440
PHAROS:  P25440
GTEx:  ENSG00000204256 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25440
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.725α = 90
b = 52.153β = 90
c = 32.013γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

  • Released Date: 2021-04-07 
  • Deposition Author(s): Chung, C.

Revision History  (Full details and data files)

  • Version 1.0: 2021-04-07
    Type: Initial release
  • Version 1.1: 2024-06-19
    Changes: Data collection, Database references