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Updated: Jun 15, 2026

Expression, Purification, and Liposome Binding of Budding Yeast SNX-BAR Heterodimers
Published on: December 6, 2019
Adaptor protein sorting nexin 17 interacts with the scavenger receptor FEEL-1/stabilin-1 and modulates its expression
Hideki Adachi1, Masafumi Tsujimoto
1Laboratory of Cellular Biochemistry, RIKEN, Saitama 351-0198, Japan. adachih@riken.jp
Abstract:
The scavenger receptor FEEL-1/stabilin-1 is known as the marker of alternatively activated macrophage and sinusoidal endothelial cell. FEEL-1/stabilin-1 is a multifunctional transmembrane glycoprotein that is implicated in bacterial infection, diabetes, atherosclerosis, wound healing, and innate immunity. In the current study, we have identified the phox-homology domain containing protein SNX17 as a novel interaction partner of FEEL-1/stabilin-1 in endothelial cells. SNX17 directly interacts with FEEL-1/stabilin-1 and regulates its trafficking. Studies using the cytoplasmic domain of truncated or mutant FEEL-1/stabilin-1 suggest that the NPxF motif of the FEEL-1/stabilin-1 cytoplasmic tail is required for its interaction with SNX17. By transfecting cells with small interfering RNA targeting SNX17, total cellular FEEL-1/stabilin-1 expression and FEEL-1/stabilin-1-mediated ligand uptake were significantly decreased due to the enhancement of FEEL-1/stabilin-1 protein degradation. Our results identify SNX17 as a novel interaction partner of FEEL-1/stabilin-1 in endothelial cells.
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