Exonic Rare variants c.A577G (p.T193A) in the DNAJB6 gene (NM_058246.4, rs770053224_A/G) and c.A470G (p.N157S) in the PSAP gene (NM_002778.4, rs756379007_T/C) segregated with PD in family A and B, respectively. This evidence concerns the gene PSAP and Parkinson disease.