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Dipeptidyl-dipeptidase (EC3.4.14.6, dipeptidyl tetrapeptide hydrolase, dipeptidyl ligase, tetrapeptide dipeptidase) is an enzyme. This enzyme catalyses the following chemical reaction
Preferential release of dipeptides from a tetrapeptide, e.g. Ala-Gly!Ala-Gly. Acts more slowly on Ala-Ala!Ala-Ala and Gly-Gly!Gly-Gly
Eng FW (1984). "Dipeptidyl tetrapeptide hydrolase, a new enzyme with dipeptidyl ligase activity". Can. J. Biochem. Cell Biol. 62 (6): 516–528. doi:10.1139/o84-069.