7DCF | pdb_00007dcf

Crystal structure of EHMT2 SET domain in complex with compound 10


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 
    0.246 (Depositor), 0.215 (DCC) 
  • R-Value Work: 
    0.200 (Depositor) 
  • R-Value Observed: 
    0.202 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 7DCF

Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history

Literature

Discovery of DS79932728: A Potent, Orally Available G9a/GLP Inhibitor for Treating beta-Thalassemia and Sickle Cell Disease.

Katayama, K.Ishii, K.Terashima, H.Tsuda, E.Suzuki, M.Yotsumoto, K.Hiramoto, K.Yasumatsu, I.Torihata, M.Ishiyama, T.Muto, T.Katagiri, T.

(2021) ACS Med Chem Lett 12: 121-128

  • DOI: https://doi.org/10.1021/acsmedchemlett.0c00572
  • Primary Citation Related Structures: 
    7DCF

  • PubMed Abstract: 

    Therapeutic reactivation of the γ-globin genes for fetal hemoglobin (HbF) production is an attractive strategy for treating β-thalassemia and sickle cell disease. It was reported that genetic knockdown of the histone lysine methyltransferase EHMT2/1 (G9a/GLP) is sufficient to induce HbF production. The aim of the present work was to acquire a G9a/GLP inhibitor that induces HbF production sufficiently. It was revealed that tetrahydroazepine has versatility as a side chain in various skeletons. We ultimately obtained a promising aminoindole derivative (DS79932728), a potent and orally bioavailable G9a/GLP inhibitor that was found to induce γ-globin production in a phlebotomized cynomolgus monkey model. This work could facilitate the development of effective new approaches for treating β-thalassemia and sickle cell disease.


  • Organizational Affiliation
    • R&D Division, Daiichi Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan.

Macromolecule Content 

  • Total Structure Weight: 67.15 kDa 
  • Atom Count: 4,532 
  • Modeled Residue Count: 519 
  • Deposited Residue Count: 566 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Histone-lysine N-methyltransferase EHMT2
A, B
283Homo sapiensMutation(s): 0 
Gene Names: EHMT2BAT8C6orf30G9AKMT1CNG36
EC: 2.1.1 (PDB Primary Data), 2.1.1.367 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q96KQ7 (Homo sapiens)
Explore Q96KQ7 
Go to UniProtKB:  Q96KQ7
PHAROS:  Q96KQ7
GTEx:  ENSG00000204371 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ96KQ7
Sequence Annotations
Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SAM

Query on SAM



Download:Ideal Coordinates CCD File
G [auth A],
M [auth B]
S-ADENOSYLMETHIONINE
C15 H22 N6 O5 S
MEFKEPWMEQBLKI-FCKMPRQPSA-N
H30
(Subject of Investigation/LOI)

Query on H30



Download:Ideal Coordinates CCD File
H [auth A],
N [auth B]
5'-methoxy-6'-(1-methyl-2,3,4,7-tetrahydroazepin-5-yl)spiro[cyclobutane-1,3'-indole]-2'-amine
C19 H25 N3 O
VMVRYCYPSDCNEH-UHFFFAOYSA-N
ZN

Query on ZN



Download:Ideal Coordinates CCD File
C [auth A]
D [auth A]
E [auth A]
F [auth A]
I [auth B]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
I [auth B],
J [auth B],
K [auth B],
L [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
H30 BindingDB:  7DCF IC50: 13 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free:  0.246 (Depositor), 0.215 (DCC) 
  • R-Value Work:  0.200 (Depositor) 
  • R-Value Observed: 0.202 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.852α = 90
b = 72.73β = 92.66
c = 63.629γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
CrysalisProdata reduction
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-10
    Type: Initial release
  • Version 1.1: 2024-03-27
    Changes: Data collection, Database references