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Literature summary for 5.1.1.3 extracted from

  • Gallo, K.A.; Knowles, J.R.
    Purification, cloning, and cofactor independence of glutamate racemase from Lactobacillus (1993), Biochemistry, 32, 3981-3990.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information cofactor-independent enzyme Limosilactobacillus fermentum

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Limosilactobacillus fermentum

General Stability

General Stability Organism
stabilized by presence of reduced thiols. After 3 h at 30°C, samples of the enzyme containing either dithiothreitol or Glu or both show about 80% retention of the original activity, whereas samples that lack both dithiothreitol and Glu retain less than 40% of the starting activity Limosilactobacillus fermentum

Inhibitors

Inhibitors Comment Organism Structure
5,5'-dithiobis(2-nitrobenzoate)
-
Limosilactobacillus fermentum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.24
-
L-Glu
-
Limosilactobacillus fermentum
0.33
-
D-Glu
-
Limosilactobacillus fermentum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
30000
-
gel filtration Limosilactobacillus fermentum

Organism

Organism UniProt Comment Textmining
Limosilactobacillus fermentum
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
158
-
enzyme from Lactobacillus fermenti Limosilactobacillus fermentum
161
-
enzyme expressed in Escherichia coli Limosilactobacillus fermentum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-Glu
-
Limosilactobacillus fermentum L-Glu
-
?

Subunits

Subunits Comment Organism
monomer 1 * 30000, SDS-PAGE Limosilactobacillus fermentum

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
69
-
D-Glu
-
Limosilactobacillus fermentum
76
-
L-Glu
-
Limosilactobacillus fermentum