A Thiokinase is a ligase that synthesizes CoA Thioesters. They are classified under EC number 6.2, but often have primary names without "thiokinase" in the title. Types include: Acetate-CoA ligase (ADP-forming) Butyrate-CoA ligase Citrate-CoA ligase Malate-CoA ligase Succinate-CoA ligase (ADP-forming) Succinate-CoA ligase (GDP-forming) EC 6.2