ZDHHC9 and type 1 diabetes mellitus: To date, palmitoylation has been investigated partly because PATs have been linked to several human conditions, including Huntington’s disease (ZDHHC13 and ZDHHC17)18, 19, schizophrenia (ZDHHC8)20, type 1 diabetes (ZDHHC17)21, intellectual disability (ZDHHC9 and ZDHHC15)8, 22, and multiple types of cancers (ZDHHC2, ZDHHC9, ZDHHC11, ZDHHC14, and ZDHHC20)23.