http://linkedlifedata.com/r... | skos:definition | "Catalysis of the hydrolysis of a peptide bond not more than three residues from the N- or C-terminus of a polypeptide chain, in a reaction that requires a free N-terminal amino group, C-terminal carboxyl group or both." [http://merops.sanger.ac.uk/about/glossary.htm#EXOPEPTIDASE] | lld:geneontology |