Now peptidases are basically those proteolytic enzymes that break down our peptides. And a specific type of peptidase that is found at the brush border is Dipeptidase. Dipeptidase is a proteolytic enzyme that breaks the peptide bonds in a peptide that only consists of two amino acids. And both of these categories of enzymes are found at the brush border of our villi in the small intestine. Now, deep in our villi of the small intestine we have these exocrine glands that are known as the crypts or glands of Librechine. And they secrete and produce a special type for proteolytic enzyme known as Antera kinase.