JQEZ5   Click here for help

GtoPdb Ligand ID: 9332

Synonyms: EZ-005 | JQ5 | JQE5 [1]
Compound class: Synthetic organic
Comment: JQEZ5 is a potent and selective inhibitor of the histone methyltransferase EZH2 (enhancer of zeste 2 polycomb repressive complex 2 subunit) [2-4]. A commonly identified somatic gain-of-function mutation in human EZH2 (Y646F), recapitulated in a mouse model (Y641F) induces tumourigenesis by massively redistributing repressive trimethylated Lys27 histone H3 marks, leading to altered repression and activation of polycomb-regulated loci.
JQEZ5 was developed at the Dana-Farber Cancer Institute and is openly available as a research probe.
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

JQEZ5 is commercially available from our sponsors

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 8
Hydrogen bond donors 2
Rotatable bonds 9
Topological polar surface area 112.04
Molecular weight 542.31
XLogP 5.91
No. Lipinski's rules broken 1

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CCCc1cc(C)[nH]c(=O)c1CNC(=O)c1cc(nc2c1cnn2C(C)C)c1ccc(nc1)N1CCN(CC1)C
Isomeric SMILES CCCc1cc(C)[nH]c(=O)c1CNC(=O)c1cc(nc2c1cnn2C(C)C)c1ccc(nc1)N1CCN(CC1)C
InChI InChI=1S/C30H38N8O2/c1-6-7-21-14-20(4)34-30(40)24(21)17-32-29(39)23-15-26(35-28-25(23)18-33-38(28)19(2)3)22-8-9-27(31-16-22)37-12-10-36(5)11-13-37/h8-9,14-16,18-19H,6-7,10-13,17H2,1-5H3,(H,32,39)(H,34,40)
InChI Key LQTWDAYNGMMHLV-UHFFFAOYSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Bioactivity Comments
In a biochemical assay of SAM-dependent methyltransferase activity JQEZ5 inhibits EZH2Y646F with a potency of 9.3nM [3]. It is around 10-fold selective for EZH2 over EZH1.
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
enhancer of zeste 2 polycomb repressive complex 2 subunit Primary target of this compound Hs Inhibitor Inhibition 8.0 pIC50 - 3
⤷ pIC50 8.0 (IC50 1.1x10-8 M) [3]
Description: In vitro biochemical assay