Recently, genome-wide association studies meta-analysis on data from 12,000 PD patients and 21,000 controls have revealed changes in DNA methylation and expression levels on several gene variants, including PARK16/1q32, GPNMB, and STX1B [International Parkinson’s Disease Genomics Consortium (IPDGC) (2011)]. Here, STX1B is linked to Parkinson disease.