MS47134 is a potent and selective MRGPRX4 agonist with an EC50 value of 149 nM. MS47134 can be used for research of pain, itch and mast cell-mediated persensitivity[1].
MS47134 exhibits increased potency as a MRGPRX4 agonist in the FLIPR Ca2+ assay compared with Nateglinide [1].
MS47134 (0.001 nM-0.1 mM) shows 47-fold improved selectivity for MRGPRX4 over the Kir6.2/SUR1 potassium channel[1].
The MRGPRX family of receptors (MRGPRX1-4) is a family of mas-related G-protein-coupled receptors that have evolved relatively recently. MRGPRX2 and MRGPRX4 are key psiological and pathological mediators of itch and related mast cell-mediated persensitivity reactions[1].
[1]. Cao C, et al. Structure, function and pharmacology of human itch GPCRs. Nature. 2021 Dec;600(7887):170-175.
















