Dipeptidase

Dipeptidases are enzymes secreted by enterocytes into the small intestine. Dipeptidases hydrolyze bound pairs of amino acids, called dipeptides.

Dipeptidases are secreted onto the brush border of the villi in the small intestine, where they cleave dipeptides into their two component amino acids prior to absorption.

Dipeptidases are also found within the enterocytes themselves, performing cytosolic digestion of absorbed dipeptides.

They are exopeptidases, classified under EC number 3.4.13.

External links

Dipeptidases at the US 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

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

Authority control	GND: 4773872-8

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Dipeptidase

See also

External links