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Pamoic acid induces βarr2-GFP response in GPR35b-expressing U2OS cells. U2OS cells were transiently transfected with GPR35b and βarr2-GFP. Representative images show no βarrestin2-GFP translocation under basal conditions (Vehicle) with a clear response at 10 μM pamoic acid (PA). Scale bar, 10 μm.
