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Literature summary extracted from

  • Zhang, H.; Zhang, J.; Wang, X.; Yang, W.; Lu, J.
    Biochemical characterization of alpha-aspartyl dipeptidase. Cloning and expression of its gene (1998), Ann. N. Y. Acad. Sci., 864, 621-625.
    View publication on PubMed

Application

EC Number Application Comment Organism
3.4.11.21 synthesis dipeptide sweeteners aspartame and alitame Salmonella enterica subsp. enterica serovar Typhimurium

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.4.11.21 expression in Escherichia coli Salmonella enterica subsp. enterica serovar Typhimurium

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.4.11.21 diethyl diphosphate
-
Salmonella enterica subsp. enterica serovar Typhimurium
3.4.11.21 Phenylglyoxal
-
Salmonella enterica subsp. enterica serovar Typhimurium
3.4.11.21 pyridoxal 5'-phosphate
-
Salmonella enterica subsp. enterica serovar Typhimurium

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.4.11.21 0.94
-
Asp-Xaa overexpressed enzyme Salmonella enterica subsp. enterica serovar Typhimurium

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.4.11.21 26000
-
single polypeptide Salmonella enterica subsp. enterica serovar Typhimurium

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.4.11.21 Asp-Xaa + H2O Salmonella enterica subsp. enterica serovar Typhimurium
-
Asp + Xaa
-
r

Organism

EC Number Organism UniProt Comment Textmining
3.4.11.21 Salmonella enterica subsp. enterica serovar Typhimurium
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.4.11.21 non-fusion protein expressed in Escherichia coli, 440fold to homogeneity Salmonella enterica subsp. enterica serovar Typhimurium

Renatured (Commentary)

EC Number Renatured (Comment) Organism
3.4.11.21 solubilization of inclusion bodies by treatment with 0.6% Triton X-100, pH 10.0, 30 mM NaCl at 40°C for 20 min Salmonella enterica subsp. enterica serovar Typhimurium

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.4.11.21 Asp-Xaa + H2O
-
Salmonella enterica subsp. enterica serovar Typhimurium Asp + Xaa
-
r
3.4.11.21 Asp-Xaa-Xaa + H2O no activity on oligopeptides larger than tripeptides Salmonella enterica subsp. enterica serovar Typhimurium Asp + Xaa-Xaa
-
r

Synonyms

EC Number Synonyms Comment Organism
3.4.11.21 peptidase E
-
Salmonella enterica subsp. enterica serovar Typhimurium

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.4.11.21 50
-
remarkably stable below 50°C, soon inactivated at 60°C Salmonella enterica subsp. enterica serovar Typhimurium

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.4.11.21 7.2
-
-
Salmonella enterica subsp. enterica serovar Typhimurium

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.4.11.21 7 8.5 rather stable Salmonella enterica subsp. enterica serovar Typhimurium