5NU5

Crystal structure of the human bromodomain of EP300 bound to the inhibitor XDM-CBP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.163 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Beyond the BET Family: Targeting CBP/p300 with 4-Acyl Pyrroles.

Hugle, M.Lucas, X.Ostrovskyi, D.Regenass, P.Gerhardt, S.Einsle, O.Hau, M.Jung, M.Breit, B.Gunther, S.Wohlwend, D.

(2017) Angew Chem Int Ed Engl 56: 12476-12480

  • DOI: 10.1002/anie.201705516
  • Primary Citation of Related Structures:  
    5LPJ, 5LPL, 5LPK, 5LPM, 5NRW, 5NU5, 5NU3

  • PubMed Abstract: 
  • Bromodomain and extra-terminal domain (BET) inhibitors are widely used both as chemical tools to study the biological role of their targets in living organisms and as candidates for drug development against several cancer variants and human disorders. However, non-BET bromodomains such as those in p300 and CBP are less studied ...

    Bromodomain and extra-terminal domain (BET) inhibitors are widely used both as chemical tools to study the biological role of their targets in living organisms and as candidates for drug development against several cancer variants and human disorders. However, non-BET bromodomains such as those in p300 and CBP are less studied. XDM-CBP is a highly potent and selective inhibitor for the bromodomains of CBP and p300 derived from a pan-selective BET BRD-binding fragment. Along with X-ray crystal-structure analysis and thermodynamic profiling, XDM-CBP was used in screenings of several cancer cell lines in vitro to study its inhibitory potential on cancer cell proliferation. XDM-CBP is demonstrated to be a potent and selective CBP/p300 inhibitor that acts on specific cancer cell lines, in particular malignant melanoma, breast cancer, and leukemia.


    Organizational Affiliation

    Institut für Biochemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104, Freiburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histone acetyltransferase p300A, B116Homo sapiensMutation(s): 0 
Gene Names: EP300P300
EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q09472 (Homo sapiens)
Explore Q09472 
Go to UniProtKB:  Q09472
PHAROS:  Q09472
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
99E
Query on 99E

Download Ideal Coordinates CCD File 
C [auth A], H [auth B]~{N}-[[2,8-bis(oxidanyl)naphthalen-1-yl]methyl]-4-ethanoyl-3-ethyl-5-methyl-1~{H}-pyrrole-2-carboxamide
C21 H22 N2 O4
KCGVENSOXCWCNF-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
D [auth A], E [auth A], F [auth A], G [auth A], I [auth B]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
99EKd:  470   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.163 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.92α = 90
b = 82.433β = 110.77
c = 42.608γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyWO 2012/1-1

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-16
    Type: Initial release
  • Version 1.1: 2017-10-11
    Changes: Database references