Biological Activity
NRX-2663 is an enhancer of the interaction between β-catenin, and its cognate E3 ligase, SCFβ-TrCP. NRX-2663 enhances the binding of β-catenin peptide for β-TrCP with an EC50 of 22.9 µM and a Kd of 54.8 nM1.
In Vitro
NRX-2663 displays both improved potency in the binding assay with pSer33/Ser37 β-catenin (EC50 of 80 µM) and cooperativity of binding (13-fold). NRX-2663 also markedly enhances the ubiquitylation of the pSer33/Ser37 β-catenin peptide, with ubiquitin chain formation at ligand concentrations of 16 μM and above resembling ubiquitin chain formation on wild-type pSer33/pSer37 β-catenin peptide[1].
In Vivo
No in vivo data are provided in the current product source. Contact us for further information.
Target
EC50: 22.9 µM (β-catenin:β-TrCP Interaction)[1] Kd: 54.8 nM (β-catenin:β-TrCP Interaction)[1]
References & source
[1]. Kyle R Simonetta, et al. Prospective discovery of small molecule enhancers of an E3 ligase-substrate interaction. Nat Commun. 2019 Mar 29;10(1):1402.
Published experimental findings depend on the model and assay conditions. They do not guarantee equivalent performance in every application. For laboratory research use only.