3K5K

Discovery of a 2,4-Diamino-7-aminoalkoxy-quinazoline as a Potent Inhibitor of Histone Lysine Methyltransferase, G9a


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery of a 2,4-diamino-7-aminoalkoxyquinazoline as a potent and selective inhibitor of histone lysine methyltransferase G9a.

Liu, F.Chen, X.Allali-Hassani, A.Quinn, A.M.Wasney, G.A.Dong, A.Barsyte, D.Kozieradzki, I.Senisterra, G.Chau, I.Siarheyeva, A.Kireev, D.B.Jadhav, A.Herold, J.M.Frye, S.V.Arrowsmith, C.H.Brown, P.J.Simeonov, A.Vedadi, M.Jin, J.

(2009) J.Med.Chem. 52: 7950-7953

  • DOI: 10.1021/jm901543m

  • PubMed Abstract: 
  • SAR exploration of the 2,4-diamino-6,7-dimethoxyquinazoline template led to the discovery of 8 (UNC0224) as a potent and selective G9a inhibitor. A high resolution X-ray crystal structure of the G9a-8 complex, the first cocrystal structure of G9a wit ...

    SAR exploration of the 2,4-diamino-6,7-dimethoxyquinazoline template led to the discovery of 8 (UNC0224) as a potent and selective G9a inhibitor. A high resolution X-ray crystal structure of the G9a-8 complex, the first cocrystal structure of G9a with a small molecule inhibitor, was obtained. The cocrystal structure validated our binding hypothesis and will enable structure-based design of novel inhibitors. 8 is a useful tool for investigating the biology of G9a and its roles in chromatin remodeling.


    Organizational Affiliation

    Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone-lysine N-methyltransferase, H3 lysine-9 specific 3
A, B
283Homo sapiensMutation(s): 0 
Gene Names: EHMT2 (BAT8, C6orf30, G9A, KMT1C, NG36)
EC: 2.1.1.-, 2.1.1.43
Find proteins for Q96KQ7 (Homo sapiens)
Go to Gene View: EHMT2
Go to UniProtKB:  Q96KQ7
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
UNX
Query on UNX

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A, B
UNKNOWN ATOM OR ION
X
*
 Ligand Interaction
SAH
Query on SAH

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A, B
S-ADENOSYL-L-HOMOCYSTEINE
C14 H20 N6 O5 S
ZJUKTBDSGOFHSH-WFMPWKQPSA-N
 Ligand Interaction
DXQ
Query on DXQ

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A, B
7-[3-(dimethylamino)propoxy]-6-methoxy-2-(4-methyl-1,4-diazepan-1-yl)-N-(1-methylpiperidin-4-yl)quinazolin-4-amine
C26 H43 N7 O2
XIVUGRBSBIXXJE-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 56.674α = 90.00
b = 78.074β = 91.81
c = 72.507γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
HKL-2000data scaling
SBC-Collectdata collection
REFMACrefinement
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2009-11-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Advisory, Refinement description