Dipeptidyl-peptidase II

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Dipeptidyl-peptidase II (EC 3.4.14.2, dipeptidyl aminopeptidase II, dipeptidyl arylamidase II, carboxytripeptidase, dipeptidyl peptidase II, DAP II, dipeptidyl(amino)peptidase II, dipeptidylarylamidase) is an enzyme. This enzyme catalyses the following chemical reaction:

Release of an N-terminal dipeptide, Xaa-Yaa!, preferentially when Yaa is Ala or Pro. Substrates are oligopeptides, preferentially tripeptides

This lysosomal serine-type peptidase is maximally active at acidic pH.

References

McDonald JK, Leibach FH, Grindeland RE, Ellis S (August 1968). "Purification of dipeptidyl aminopeptidase II (dipeptidyl arylamidase II) of the anterior pituitary gland. Peptidase and dipeptide esterase activities". The Journal of Biological Chemistry. 243 (15): 4143–50. doi:10.1016/S0021-9258(18)93291-6. PMID 4969969.
McDonald JK, Schwabe C (1977). "Intracellular exopeptidases". In Barrett AJ (ed.). Proteinases in Mammalian Cells and Tissues. Amsterdam: North-Holland Publishing Co. pp. 311–391.

External links

Dipeptidyl-peptidase+II at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

Hydrolase: proteases (EC 3.4)

3.4.11-19: Exopeptidase

3.4.11	Aminopeptidase Alanine Arginyl Aspartyl Cystinyl Leucyl Glutamyl Methionyl 1 2 O
3.4.13	Dipeptidase 1 2 3
3.4.14	Dipeptidyl peptidase Cathepsin C Dipeptidyl peptidase-4 Tripeptidyl peptidase Tripeptidyl peptidase I Tripeptidyl peptidase II
3.4.15	Angiotensin-converting enzyme
3.4.16	Serine type carboxypeptidases: Cathepsin A DD-Transpeptidase
3.4.17	Metalloexopeptidases Carboxypeptidase A A2 B C E Glutamate II
Other/ungrouped	Metalloexopeptidase

3.4.21-25: Endopeptidase

Other/ungrouped: Amyloid precursor protein secretase

3.4.99: Unknown

Staphylokinase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

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