PROTAC ERRα Degrader-3 is a highly effective and selective von Hippel-Lindau-based ligand that efficiently degrades the ERRα protein. At a concentration of 30 nM, this compound exhibits a remarkable degradation capability, reducing the ERRα protein levels by >80%. Importantly, PROTAC ERRα Degrader-3 shows no activity against the ERRβ and ERRγ proteins.

PROTAC ERRα Degrader-3 (compound 6c; 0.3 nM-10 μM; 4 hours) dose-dependently induces ERRα degradation with an efficacious dose as low as 3.0 nM at 4.0 h. PROTAC ERRα Degrader-3 potently decreases protein levels of ERRα downstream target genes, e.g., ATP5B, medium-chain acyl CoA dehydrogenase (MCAD), and pyruvate dehydrogenase kinase 4 (PDK4) in the MDA-MB-231 cells after a 24 h treatment[1]. PROTAC ERRα Degrader-3 exhibits an IC 50 value of 12.67 nM to block the protein-protein interaction of ERRα with PGC-1α peptide and induces approximately 96% protein degradation at 100 nM (D100 nM) after 4.0 h treatment[1]. Western Blot Analysis[1]Cell Line: MDA-MB-231 cells Concentration: 0.3 nM, 1 nM, 3 nM, 10 nM, 30 nM, 100 nM, 300 nM, 1 μM, 3 μM, 10 μM Incubation Time: 4 hours Result: Dose-dependently induced ERRα degradation.