TMEM230 and Parkinson disease: Deng et al. also identified three additional TMEM230 variants in PD patients, among them TMEM230 c.550_552delTAGinsCCCGGG (p.*184ProGlyext*5).This mutation was unusually common among Chinese PD families, reported from 7 outof 574 families, who were either homozygous or heterozygous carriers, andco-segregated with PD in two affected sib-pairs from these seven families[28••, 29].