RAB29 and Parkinson disease: With regard to the possible involvement of NME A1 in the onset and progression of PD, Tucci and colleagues have identified two novel coding variants of genes that are from the PARK16 locus and that are present only in the PD cohort, namely RAB7L1 (c.470A > G; p.K157R) and A1 (c.1049C > T, p.A350V) [19].