ZDHHC4 and Parkinson disease: In contrast, the projected-palmitoylome of DG granule cells which have the highest expression of Zdhhc21, Zdhhc4, Zdhhc24, and Zdhhc8 (Figure 2G and H) generated KEGG pathways related to ‘Ribosome’, ‘Cholinergic synapse’, and ‘Parkinson’s disease’ (Figure 2I).