To date, missense and loss of function mutations in approximately 20 genes have been correlated with PD, including PRKN (missense or loss of function), PARK7 (missense), LRRK2 (missense), PINK1 (missense or loss of function), PLOG (missense or loss of function), and GBA (missense or loss of function) (Blauwendraat et al., 2020). The gene discussed is PRKN; the disease is Parkinson disease.