Further investigation revealed that mutant LRRK2-transfected neurons, as well as fibroblasts from PD patients with the G2019S and R1441C mutations, showed increased mRNA and protein expression of MCU and MICU1, with no changes in MICU2 or NCLX expression (Verma et al., 2017). The gene discussed is MICU1; the disease is Parkinson disease.