This network suggests that ATXN3 and FBXW7 may be part of the same disease pathway as PARK2 (Parkin), CHCHD3 and KLC1as SNCA, AATF, HSF1, and KLC1 as MAPT, TCF3, and MBD3 as DJ-1 (PARK7), TUBB4B and NSF as LRRK2 while other genes (SGCZ, BCHE, DLC1, CYP2E1, NRXN1, SGCG, and JAK2) that we identified may influence risk of PD via another mechanism. This evidence concerns the gene TCF3 and Parkinson disease.