Fig. 2: MS identifies OA as a ligand of GPR3.
From: Identification of oleic acid as an endogenous ligand of GPR3
a Scheme of the MS approach for identification of OA as a ligand of GPR3. Extracted ion chromatogram of the detected FAs, including FA 16:0 (green), FA 18:1 (purple), FA 18:0 (blue), and [D4] FA 18:0 (orange). b Relative intensities of the detected FA 18:1 in sample and buffer. c Relative composition of C=C location isomers in FA 18:1. d 2-Acpy PB-MS/MS spectrum of FA 18:1. Upper panel, chemical structure of FA 18:1 (n-9).
