NRX-252114 is a potent enhancer of the interaction between β-catenin, and its cognate E3 ligase, SCFβ-TrCP. NRX-252114 enhances the binding of pSer33/S37A β-catenin peptide for β-TrCP with an EC50 of 6.5 nM and a Kd of 0.4 nM. NRX-252114 induces mutant β-catenin degradation.IC50 & Target:EC50: 6.5 nM (β-catenin:β-TrCP Interaction)
Kd: 0.4 nM (β-catenin:β-TrCP Interaction)In Vitro:NRX-252114 (20 μM) enhances the binding of pSer33/S37A β-catenin peptide for β-TrCP, with more than 1500-fold co-operativity.
NRX-252114 (0-25 μM) increases the ubiquitylation of pSer33/S37A β-catenin peptide to form long ubiquitin chains.
NRX-252114 (0-25 μM) enhances the ubiquitylation of S33E/S37A β-catenin protein, as well as unphosphorylated Ser33/S37A β-catenin peptides.
NRX-252114 (20 μM, 6 h) results in robust S33E/S37A β-catenin:β-TrCP interaction in the transfected HEK293T cells.