A protein kinase implicated in familial and sporadic cases of PD is leucine‐rich repeat kinase 2 (LRRK2), wherein mutations in LRRK2 have been shown to increase kinase activity.154 LRRK2 and mutant LRRK2 localize to intracellular membranes in the rodent brain and human cells. Here, WEE1 is linked to Parkinson disease.