ISDA

Deposition Date 2009-10-07

Release Date 2009-11-10

Last Version Date 2024-11-20

Entry Detail

PDB ID:

3K5K

Keywords:

TRANSFERASE

Title:

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

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.70 Å

R-Value Free:

0.26

R-Value Work:

0.20

R-Value Observed:

0.21

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Histone-lysine N-methyltransferase, H3 lysine-9 specific 3
Gene (Uniprot):EHMT2
Chain IDs:A, B
Chain Length:283
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q96KQ7 Pfam ID:PF05033, PF00856 EC:2.1.1.355

Ligand Molecules

DXQ

SAH

UNX

Primary Citation

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.Show

J.Med.Chem. 52 7950 7953 (2009)

PMID: 19891491 DOI: 10.1021/jm901543m

Abstact

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.

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Primary Citation of related structures