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Literature summary for 3.4.19.1 extracted from

  • Schoenberger, O.L.; Tschesche, H.
    N-Acetylalanine aminopeptidase. A new enzyme from human erythrocytes (1981), Hoppe-Seyler's Z. Physiol. Chem., 362, 865-873.
    View publication on PubMed

General Stability

General Stability Organism
loss of activity after freezing and lyophilization Homo sapiens
stabilized in a 0.1 M solution of ammonium sulfate Homo sapiens
unstable with organic solvents Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
di(2-pyridyl)disulfide
-
Homo sapiens
PCMB
-
Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.616
-
N-acetyl-Ala-4-nitroanilide
-
Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Homo sapiens 5829
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
300000
-
gel filtration Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
erythrocyte
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-acetyl-Ala ethyl ester + H2O
-
Homo sapiens N-acetyl-Ala + ethanol
-
?
N-acetyl-Ala p-nitroanilide + H2O
-
Homo sapiens N-acetyl-Ala + p-nitroaniline
-
?
N-acetyl-Ala-Ala + H2O N-acetyl-Ala-Ala Homo sapiens N-acetyl-Ala + Ala
-
?
N-acetyl-Ala-Ala-Ala + H2O N-acetyl-Ala-Ala-Ala Homo sapiens N-acetyl-Ala + Ala-Ala
-
?
N-acetyl-Ala-Ala-Ala-Ala + H2O
-
Homo sapiens N-acetyl-Ala + Ala-Ala-Ala
-
?
N-acetyl-Ala-Tyr-Ile + H2O
-
Homo sapiens ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.3
-
hydrolysis of N-acetyl-Ala p-nitroanilide Homo sapiens
8.4
-
hydrolysis of N-acetyl-Ala p-nitroanilide Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
7 9 about 55% of maximal activity at pH 7 and at pH 13 Homo sapiens

pH Stability

pH Stability pH Stability Maximum Comment Organism
5
-
rapid loss of activity below Homo sapiens
5.4
-
0.25 M ammonium sulfate, stable for 6 weeks Homo sapiens
6 8 stable Homo sapiens