Protein kinases linked to the pathogenesis of Parkinson's disease.

Two papers in this issue of Neuron identify a causative gene, LRRK2, for familial parkinsonism. Several dominantly inherited missense mutations have been identified in a number of families that exhibit a broad spectrum of neuropathological features, including deposition of alpha-synuclein and tau proteins. The LRRK2 gene is predicted to encode a large protein containing leucine-rich repeats and Ras/GTPase, tyrosine kinase-like, and WD40 domains.