VPS35 and Parkinson disease: In PD, familial mutations in PTEN-induced putative kinase 1 (PINK1), Parkin, DJ-1, leucine-rich repeat kinase (LRRK), ATP13A2, and recently, vacuolar protein sorting-associated protein 35 (VPS35) have been found to control mitochondrial size and transport through interaction with fusion-fission proteins and molecular motors12–18.