7KXT

Crystal structure of human EED


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structure-Guided Development of Small-Molecule PRC2 Inhibitors Targeting EZH2-EED Interaction.

Du, D.Xu, D.Zhu, L.Stazi, G.Zwergel, C.Liu, Y.Luo, Z.Li, Y.Zhang, Y.Zhu, K.Ding, Y.Liu, J.Fan, S.Zhao, K.Zhang, N.Kong, X.Jiang, H.Chen, K.Zhao, K.Valente, S.Min, J.Duan, W.Luo, C.

(2021) J Med Chem 64: 8194-8207

  • DOI: https://doi.org/10.1021/acs.jmedchem.0c02261
  • Primary Citation of Related Structures:  
    7KXT

  • PubMed Abstract: 

    Disruption of EZH2-embryonic ectoderm development (EED) protein-protein interaction (PPI) is a new promising cancer therapeutic strategy. We have previously reported the discovery of astemizole, a small-molecule inhibitor targeting the EZH2-EED PPI. Herein, we report the cocrystal structure of EED in complex with astemizole at 2.15 Å. The structure elucidates the detailed binding mode of astemizole to EED and provides a structure-guided design for the discovery of a novel EZH2-EED interaction inhibitor, DC-PRC2in-01, with an affinity K d of 4.56 μM. DC-PRC2in-01 destabilizes the PRC2 complex, thereby leading to the degradation of PRC2 core proteins and the decrease of global H3K27me3 levels in cancer cells. The proliferation of PRC2-driven lymphomas cells is effectively inhibited, and the cell cycle is arrested in the G0/G1 phase. Together, these data demonstrate that DC-PRC2in-01 could be an effective chemical probe for investigating the PRC2-related physiology and pathology and providing a promising chemical scaffold for further development.


  • Organizational Affiliation

    School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023 Jiangsu, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Polycomb protein EED
A, B
402Homo sapiensMutation(s): 0 
Gene Names: EED
UniProt & NIH Common Fund Data Resources
Find proteins for O75530 (Homo sapiens)
Explore O75530 
Go to UniProtKB:  O75530
PHAROS:  O75530
GTEx:  ENSG00000074266 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO75530
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
XB7
Query on XB7

Download Ideal Coordinates CCD File 
C [auth A],
EA [auth B]
1-[(4-fluorophenyl)methyl]-N-{1-[2-(4-methoxyphenyl)ethyl]piperidin-4-yl}-1H-benzimidazol-2-amine
C28 H31 F N4 O
GXDALQBWZGODGZ-UHFFFAOYSA-N
UNX
Query on UNX

Download Ideal Coordinates CCD File 
AA [auth A]
AB [auth B]
BA [auth A]
BB [auth B]
CA [auth A]
AA [auth A],
AB [auth B],
BA [auth A],
BB [auth B],
CA [auth A],
CB [auth B],
D [auth A],
DA [auth A],
DB [auth B],
E [auth A],
F [auth A],
FA [auth B],
G [auth A],
GA [auth B],
H [auth A],
HA [auth B],
I [auth A],
IA [auth B],
J [auth A],
JA [auth B],
K [auth A],
KA [auth B],
L [auth A],
LA [auth B],
M [auth A],
MA [auth B],
N [auth A],
NA [auth B],
O [auth A],
OA [auth B],
P [auth A],
PA [auth B],
Q [auth A],
QA [auth B],
R [auth A],
RA [auth B],
S [auth A],
SA [auth B],
T [auth A],
TA [auth B],
U [auth A],
UA [auth B],
V [auth A],
VA [auth B],
W [auth A],
WA [auth B],
X [auth A],
XA [auth B],
Y [auth A],
YA [auth B],
Z [auth A],
ZA [auth B]
UNKNOWN ATOM OR ION
X
Binding Affinity Annotations 
IDSourceBinding Affinity
XB7 BindingDB:  7KXT Ki: 2.30e+4 (nM) from 1 assay(s)
IC50: 9.38e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.47α = 90
b = 49.94β = 105.11
c = 105.32γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-24
    Type: Initial release
  • Version 1.1: 2021-08-04
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Database references, Refinement description