5.00561

Ezh2 Inhibitor II, EI1

• Synonym(s): Ezh2 Inhibitor II, EI1, Enhancer of Zested Homolog 2 Inhibitor II, HMTase Inhibitor XI, 6-Cyano-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-(pentan-3-yl)-1H-indole-4-carboxamide
• Empirical Formula (Hill Notation): C₂₃H₂₆N₄O₂
• CAS Number: 1418308-27-6
• Molecular Weight: 390.48
• MDL number: MFCD25976740
• UNSPSC Code: 12352200
• NACRES: NA.77

Properties

• assay: ≥98% (HPLC)
• Quality Level: 100
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; protect from light
• color: white
• solubility: DMSO: 10 mg/mL
• Storage temp.: 2-8°C
• SMILES string: [nH]1[c](c(c(cc1C)C)CNC(=O)c2c3c([n](cc3)C(CC)CC)cc(c2)C#N)=O
• InChI: 1S/C23H26N4O2/c1-5-17(6-2)27-8-7-18-19(10-16(12-24)11-21(18)27)22(28)25-13-20-14(3)9-15(4)26-23(20)29/h7-11,17H,5-6,13H2,1-4H3,(H,25,28)(H,26,29)
• Inchi Key: PFHDWRIVDDIFRP-UHFFFAOYSA-N

Description

General description

A cell-permeable indolocarboxamide compound that acts as a potent and selective inhibitor against Ezh2/PRC2 (Polycomb repressive complex 2; Ezh2/SUZ12/EED/AEBP2/RbAP48) HMTase activity (IC₅₀/substrate = 15 nM/H3K27me0_21-44 and 13 nM/H3K27me2_21-44, respectively, against human wt or Y641F Ezh2-containing PRC2; [SAM] = 1 µM) in a cofactor SAM-competitive manner, while inhibiting Ezh1/PRC2 only at much higher concentrations (IC₅₀ = 1.34 µM) and exhibiting no potency toward CARM 1, Dot1L, G9a, MLL, NSD3, Set7/9, SETD2, SETD8, SmyD2, or Suv39H2 (IC₅₀ >100 µM). Shown to selectively suppress cellular H3K27 dimethylation and trimethylation (1 to 10 µM in 1 to 5 days) in DLBCL (diffuse large B cell lymphoma) cultures, but not those of H3K4, H3K9, H3K36, or H3K79. EI1 is shown to exhibit antiproliferation activity against DLBCL cell lines with wt- (by 90% in G401 with 3.3 µM EI1; by 78% in Toledo with 10 µM EI1; 14 d incubation) or mutant- Ezh2 (by &gt96% in WSU-DLCL2/Y641F, SU-DHL6/Y641N, Karpas422/Y641N, and DB/Y641N cultures with 3.3 µM EI1; by &gt96% in SU-DHL4 cultures with10 µM EI1; 14 d incubation), while being less effective against MEF (by 40% in 11 days at 3.3 µM) and ineffective toward wt Ezh2-expressing GA10 and OCI-LY19.

Biochem/physiol Actions

Cell permeable: yes

Primary Target
Ezh2/PRC2

Reversible: yes

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Qi, W., et al. 2012. Proc. Natl. Acad. Sci. USA.109, 21360.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2