816159.fig.002a
(a)
816159.fig.002b
(b)
816159.fig.002c
(c)
816159.fig.002d
(d)
Figure 2: Structures of physiologically active substances which can activate MRGPRD: (a) beta-alanine (βAla), (b) beta-aminoisobutyric acid (βAIBA), (c) gamma-aminobutyric acid (GABA), and (d) diethylstilbestrol (DES).