Given the reported role of GAK in maintaining Golgi morphology, we used the Golgi-stack marker GM130 to stain dermal fibroblasts from a healthy donor and a L2-PD patient, both carrying the common GAK isoform, and from the L2-NMC individual carrying the GAKD1297N isoform (Fig. S5A). This evidence concerns the gene GAK and Parkinson disease.