Vacuolar protein sorting-associated protein 35 (VPS35)

Vacuolar protein sorting-associated protein 35 (VPS35) is the essential scaffolding subunit of the retromer complex, a conserved protein complex that mediates the recognition, selection, and retrograde transport of membrane cargo proteins from endosomes to the trans-Golgi network or plasma membrane[1][2][3]. VPS35 orchestrates protein recycling, preventing lysosomal degradation of receptors and transporters critical for many cellular functions including synaptic transmission, iron homeostasis, mitochondrial quality control, and autophagy[1][3]. Dysfunction or mutation of VPS35 leads to widespread cellular trafficking defects, underlying its roles in neurodegenerative disorders like Parkinson’s and Alzheimer’s diseases as well as in cancer and other conditions[1][4]. VPS35 is not a receptor or enzyme but rather a pivotal sorting and trafficking regulator at the crossroads of multiple intracellular pathways. While it is an intensively studied molecular target, direct pharmacological modulators are not in clinical use, but it remains an active area of therapeutic research, especially for neurodegenerative disease[1].

Other names

MEM3TCCCTA00141hVPS35FLJ10752PARK17Maternal-embryonic 3Vesicle protein sorting 35vacuolar protein sorting-associated protein 35vacuolar protein sorting 35 homolog

Enhancement or stabilization of retromer function to improve sorting and recycling of neuronal membrane proteins Correction of defective endosomal sorting in neurodegenerative disease models Modulation of autophagy, mitochondrial dynamics, and neuronal receptor recycling[1][4]