PWASs identified 12 PD risk proteins and nine LBD risk proteins, among which TMEM175 (zPD = −7.25, PPD = 4.12E‐13; zLBD = −6.02, PLBD = 1.75E‐09) and DOC2A (zPD = −4.13, PPD = 3.71E‐05; zLBD = −3.91, PLBD = 9.08E‐05) were shared. This evidence concerns the gene DOC2A and Parkinson disease.