LRRK2, a puzzling protein: Insights into Parkinson's disease pathogenesis Journal Article

Authors: Esteves, A Raquel; Swerdlow, Russell H; Cardoso, Sandra M
Article Title: LRRK2, a puzzling protein: Insights into Parkinson's disease pathogenesis
Abstract: Leucine-rich repeat kinase 2 (LRRK2) is a large, ubiquitous protein of unknown function. Mutations in the gene encoding LRRK2 have been linked to familial and sporadic Parkinson's disease (PD) cases. The LRRK2 protein is a single polypeptide that displays GTPase and kinase activity. Kinase and GTPase domains are involved in different cellular signaling pathways. Despite several experimental studies associating LRRK2 protein with various intracellular membranes and vesicular structures such as endosomal/lysosomal compartments, the mitochondrial outer membrane, lipid rafts, microtubule-associated vesicles, the golgi complex, and the endoplasmic reticulum its broader physiologic function(s) remain unidentified. Additionally, the cellular distribution of LRRK2 may indicate its role in several different pathways, such as the ubiquitin-proteasome system, the autophagic-lysosomal pathway, intracellular trafficking, and mitochondrial dysfunction. This review discusses potential mechanisms through which LRRK2 may mediate neurodegeneration and cause PD.
Journal Title: Experimental neurology
Volume: 261C
ISSN: 1090-2430
Publisher: Academic Press  
Date Published: 2014
Start Page: 206
End Page: 216