Extended Data Fig. 8: Functional characterization of optimized MRGPRX4 agonists.
From: Structure, function and pharmacology of human itch GPCRs
a, Dose-response curves of Kir6.2/SUR1 current inhibition by indicated chemicals. Data represent mean ± s.e.m. from n=4 biological replicates. b, d, f, h. Current-voltage relationships of whole-cell traces recorded in 150 mM KCl with the supplements of indicated chemicals of the labeled concentrations. c, e, g, Time courses showing the whole-cell-current responses to the indicated chemicals of the labeled concentrations. i, MRGPRX4 agonists X4-4 and MS47134 have a higher selectivity over Kir6.2/SUR1 channel compared with nateglinide. EC50 (nM) of each tested compound is shown. j, Screening of MS47134 across the GPCRome (at 320 receptors) using the PRESTO-Tango platform with 3 µM MS47134. Red dashed line indicated threefold of basal levels. Data represent mean ± s.e.m. of fold over basal for each receptor (n=4 technical replicates).
