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DI-591

CAS No. : 2245887-38-9

MCE 站：DI-591

产品活性：DI-591 是一种有效，高亲和力和细胞渗透性的 DCN1-UBC12 相互作用的抑制剂。DI-591 分别以 K_i 值为 12 nM 和 10.4 nM 与 DCN1 和 DCN2 结合，并且几乎不与 DCN3，DCN4 和 DCN5 蛋白结合。DI-591 选择性抑制 cullin 3 的二烯化，但对其他 cullin 家族成员的二烯化没有影响或影响很小。

研究领域：Metabolic Enzyme/Protease

作用靶点：E1/E2/E3 Enzyme

In Vitro: DI-591 (Compound 44) binds to DCN1 and DCN2 with K_i values of 12?nM and 10.4 nM, respectively and has no appreciable binding to DCN3, DCN4, and DCN5 proteins. Hence, DI-591 displays a very-high binding affinity to recombinant human DCN1 and DCN2 proteins and >1000-fold selectivity over recombinant human DCN3-5 proteins.
DI-591 (Compound 44; 0-10 μM; 1 hour; KYSE70 cells) binds to both cellular DCN1 and DCN2 proteins and disrupts the association of cellular DCN1 and UBC12 proteins.
DI-591 (Compound 44; 10 μM; 24 hours; THLE2 cells) treatment robustly increases the mRNA levels of NQO1 and HO1, leading to upregulation of HO1 protein in the cells. Significantly, DI-591 has no effect on the mRNA level of NRF2.
The selective inhibition of neddylation of cullin 3 by DI-591 leads to accumulation NRF2 protein and its transcriptional activation. Knockdown experiments indicate that DCN1, but not DCN2, plays a key role in regulation of neddylation of cullin 3 but not of other cullins. DI-591 is an excellent probe compound to investigate the role of the cullin 3 CRL (Cullin-RING E3 ubiquitin ligase) in biological processes and human diseases.

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