LRRK2 and Parkinson disease: Other proteins related to PD-causing genes such as α-synuclein (SNCA; PARK1/PARK4), leucine-rich repeat kinase 2 (LRRK2; PARK8), ATPase cation transporting 13A2 (ATP13A2; PARK9), and F-box protein 7 (FBXO7; PARK15) are also involved in mitochondria activity or clearance, though they control other relevant cellular functions mostly related to the autophagy process to target dysfunctional cargoes to the lysosomes through the ubiquitin proteasome system (UPS) [12].