The same delay in Miro removal and mitophagy was also observed in patient-derived fibroblast lines with PINK1 and Parkin mutations as well as lines derived from sporadic PD patients, thus suggesting that delayed Miro removal could be a common mechanism for multiple causes of PD (Liu et al., 2012; Hsieh et al., 2016). The gene discussed is PRKN; the disease is Parkinson disease.