ANPEP and cystic fibrosis: Moreover, peptidases increased in amounts, such as aminopeptidase N (Cg2662) and aspartyl aminopeptidase (Cg1693) in the CF, whereas leucyl aminopeptidase (Cg2419) decreased in the MF and putative thiol precursor dipeptidase (Cg3201) in the CF, respectively.