EPZ005687  1396772-26-1

 EPZ-005687
分子式：C32H37N5O3   分子量：539.67
 
產(chǎn)品描述
EPZ005687是有效的，選擇性EZH2抑制劑，Ki為24 nM,比作用于EZH1選擇性高50倍，比作用于15種其他蛋白甲基轉(zhuǎn)移酶選擇性高500倍。
靶點(diǎn)
EZH2
         
IC50
24 nM (Ki)
         
體外研究
EPZ005687 shows concentration-dependent inhibition of PRC2 enzymatic activity with an IC50 value of 54 nM. It is a direct inhibitor of PRC2 enzymatic activity and does not function by disrupting the protein-protein interactions among the PRC2 subunits. EPZ005687 binds in the SAM pocket of the EZH2 SET domain and is a SAM-competitive inhibitor of EZH2 enzyme activity. The affinity of EPZ005687 is similar (within a two-fold range) for PRC2 complexes containing wild-type and Tyr641 mutant EZH2, but significantly greater affinity for the A677G mutant enzyme (5.4-fold). EPZ005687 reduces H3K27 methylation in various lymphoma cells. It shows robust cell killing in heterozygous Tyr641 or Ala677 mutant cells, with minimal effects on the proliferation of wild-type cells. EPZ005687 increases G1 phase of the cell cycle with correlative decreases in the S as well as the G2/M phases. In a Tyr641 mutant lymphoma cell line, EPZ005687 can lead to derepression of known EZH2 target genes and affect genes specifically repressed by the EZH2 Tyr641 mutant.
體內(nèi)研究
 
溶解性
DMSO 2 mg/mL，水 <1 mg/mL，乙醇 <1 mg/mL
穩(wěn)定性
2年 -20°C粉狀，6月-80°C溶于DMSO