Hydrolysis of a dipeptide
This animation shows how a peptide bond in the middle of a dipeptide may be broken (hydrolysed).
This takes place as a result of the addition of water.
This splits the bond, supplying -H to one end and -OH to the other.
The result is 2 individual amino acid molecules.
This breakdown is normally achieved as a result of the action of a protease enzyme.
However, the same result may be obtained when a dipeptide is heated for some time in acid (this is called acid hydrolysis).