Aspartic protease with a high preference for bonds between hydrophobic residues. Inhibited by pepstatin. Optimim pH is 4.3. Active from pH 3 to 6.5. Heterodimer of a light chain and a heavy chain. An intermediate form is produced first, and undergoes proteolytic processing to remove the internal plant-specific insert (PSI) and the propeptide. Procardosin-F is associated with the microsomal membranes, the mature form is secreted. Pistils. N-glycosylated. Heavy chain. Light chain. The measured range is unknown. Belongs to the peptidase A1 family.