NN-TERMINAL BROMODOMAIN OF HUMAN BRD4 WITH 5-5-methoxypyridin-3-yl-3- methyl-8-piperidin-4-ylamino-1,2-dihydro-1,7-naphthyridin-2-one

Experimental Data Snapshot

  • Resolution: 1.36 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.1 of the entry. See complete history


Fragment-Based Discovery of Low-Micromolar Atad2 Bromodomain Inhibitors.

Demont, E.H.Chung, C.Furze, R.C.Grandi, P.Michon, A.Wellaway, C.Barrett, N.Bridges, A.M.Craggs, P.D.Diallo, H.Dixon, D.P.Douault, C.Emmons, A.J.Jones, E.J.Karamshi, B.V.Locke, K.Mitchell, D.J.Mouzon, B.H.Prinjha, R.K.Roberts, A.D.Sheppard, R.J.Watson, R.J.Bamborough, P.

(2015) J Med Chem 58: 5649

  • DOI: https://doi.org/10.1021/acs.jmedchem.5b00772
  • Primary Citation of Related Structures:  
    5A5N, 5A5O, 5A5P, 5A5Q, 5A5R, 5A5S

  • PubMed Abstract: 

    Overexpression of ATAD2 (ATPase family, AAA domain containing 2) has been linked to disease severity and progression in a wide range of cancers, and is implicated in the regulation of several drivers of cancer growth. Little is known of the dependence of these effects upon the ATAD2 bromodomain, which has been categorized as among the least tractable of its class. The absence of any potent, selective inhibitors limits clear understanding of the therapeutic potential of the bromodomain. Here, we describe the discovery of a hit from a fragment-based targeted array. Optimization of this produced the first known micromolar inhibitors of the ATAD2 bromodomain.

  • Organizational Affiliation

    §Molecular Discovery Research, Cellzome GmbH, GlaxoSmithKline, Meyerhofstrasse 1, 69117 Heidelberg, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BROMODOMAIN-CONTAINING PROTEIN 4127Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for O60885 (Homo sapiens)
Explore O60885 
Go to UniProtKB:  O60885
PHAROS:  O60885
GTEx:  ENSG00000141867 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO60885
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on NP8

Download Ideal Coordinates CCD File 
C [auth A]5-(5-methoxypyridin-3-yl)-3-methyl-8-[(piperidin-4-yl)amino]-1,2-dihydro-1,7-naphthyridin-2-one
C20 H23 N5 O2
Query on EDO

Download Ideal Coordinates CCD File 
B [auth A]1,2-ETHANEDIOL
C2 H6 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
NP8 BindingDB:  5A5S IC50: min: 1259, max: 1.58e+4 (nM) from 2 assay(s)
Binding MOAD:  5A5S IC50: 1300 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.36 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.39α = 90
b = 49.39β = 90
c = 59.23γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-22
    Type: Initial release
  • Version 1.1: 2015-08-05
    Changes: Database references