Since the C/C splitting phenotype results from the pericentrosomal accumulation of pT73-Rab10, we stained a subset of healthy control, R1441G-LRRK2 PD and R1441G-LRRK2 NMC LCLs for both pericentrin and pT73-Rab10 (Supplementary Fig. 12). This evidence concerns the gene LRRK2 and Parkinson disease.