A female PD case from the PD GENE study with an AAO under 30 was identified as a carrier of two heterozygous variants in PRKN— p.Gly139Valfs*38 and p.Pro113Thrfs*51—that would suggest a potential compound heterozygous state (Table 2, Supplementary Table 3). The gene discussed is PRKN; the disease is Parkinson disease.