β-arrestin1 directly engages Gαs to sustain endosomal GPCR signaling
Qian He, Qingning Yuan, XiHeng HE, Wen Hu, H. Eric Xu, Lihua Zhao
This study shows β-arrestin1 directly binds Gαs to sustain endosomal GPCR signaling by stabilizing Gs in a signaling-competent state.
bioRxiv · Sep 28, 2026 · PreprintBiochemistry