Hitherto, only a few studies have identified digenic variants of PD-related genes [LRRK2-PRKN (Dächsel et al., 2006), PINK1-PARK7 (Tang et al., 2006) or PRKN-PINK1 (Hayashida et al., 2021)]. The gene discussed is PARK7; the disease is Parkinson disease.