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. This evidence concerns the gene DNPEP and cystic fibrosis.