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UNC0631 Histone Methyltransferase inhibitor

Cat.No.S7610

UNC 0631 is a potent inhibitor of histone methyltransferase G9a with an IC50 of 4 nM. It potently reduces H3K9me2 levels in MDA-MB-231 cells with an IC50 of 25 nM.
UNC0631 Histone Methyltransferase inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 635.93

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Quality Control

Batch: Purity: 99.02%
99.02

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (157.25 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 100 mg/mL

Water : Insoluble

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Chemical Information, Storage & Stability

Molecular Weight 635.93 Formula

C37H61N7O2

Storage (From the date of receipt)
CAS No. 1320288-19-4 Download SDF Storage of Stock Solutions

Mechanism of Action

Targets/IC50/Ki
G9a
In vitro

In MCF7, 22RV1, and IMR90 cells, UNC0631 potently reduces H3K9me2 levels, and shows excellent separation of functional potency versus cell toxicity. This compound thus can be used as a tool for the biomedical research community to further investigate the biology of G9a and its role in chromatin remodeling.

Kinase Assay
SAHH-coupled assays
This assay utilizes SAHH to hydrolyze the methyltransfer product SAH to homocysteine and adenosine in the presence of adenosine deaminase which converts adenosine to inosine. The homocysteine concentration is then determined through conjugation of its free sulfhydryl moiety to a thiol-sensitive fluorophore, ThioGlo. For IC50 determinations, assay mixtures are prepared in 25 mM potassium phosphate buffer pH 7.5, 1 mM EDTA, 2 mM MgCl2, 0.01% Triton X-100 with 5 μM SAHH, 0.3 U/mL of adenosine deaminase, 25 μM SAM, and 15 μM ThioGlo. G9a, GLP, SETD7, SETD8, PRMT3 and SUV39H2 are assayed at 25 nM, 100 nM, 200 nM, 250 nM, 500 nM and 100 nM, respectively. This compound is added at concentrations ranging from 4 nM to 16 μM. After 2 min incubation, reactions are initiated by addition of the histone peptides: 10 μM H3(1–25) for G9a, 20 μM H3(1–25) for GLP, 100 μM H3(1–25) for SETD7, 500 μM H4(1–24) for SETD8, 10 μM H4(1–24) for PRMT3 and 200 μM H3K9Me1 (1–15) for SUV39H2. The methylation reaction is followed by monitoring the increase in fluorescence using Biotek Synergy2 plate reader with 360/40 nm excitation filter and 528/20 nm emission filter for 20 min in 384 well-plate format. Activity values are corrected by subtracting background caused by the peptide or the protein. IC50 values are calculated using Sigmaplot. Standard deviations are calculated from two independent experiments.
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