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Literature summary for 4.2.1.32 extracted from

  • Hurlbert, R.E.; Jakoby, W.B.
    L-(+)-Tartaric acid dehydrase (1966), Methods Enzymol., 9, 680-682.
No PubMed abstract available

General Stability

General Stability Organism
no significant loss of activity after repeated freezing and thawing Pseudomonas putida

Inhibitors

Inhibitors Comment Organism Structure
(R,S)-tartrate competitive Pseudomonas putida
EDTA
-
Pseudomonas putida

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information reducing conditions: 2 KM-values/biphasic curve, presence of air: only one higher KM-value obtained Pseudomonas putida
0.8
-
(R,R)-Tartrate in the presence of air Pseudomonas putida
2
-
(R,R)-Tartrate elimination of air Pseudomonas putida

Organism

Organism UniProt Comment Textmining
Pseudomonas putida
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Pseudomonas putida

Storage Stability

Storage Stability Organism
-20°C, under reduced pressure and minimized contact with air several months Pseudomonas putida

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(R,S)-Tartrate no activity with D-(-)-tartrate, (R,S)-tartrate Pseudomonas putida Oxaloacetate + H2O
-
?
L-(+)-Tartrate no activity with D-(-)-tartrate, (R,S)-tartrate Pseudomonas putida Oxaloacetate + H2O
-
?

Subunits

Subunits Comment Organism
monomer
-
Pseudomonas putida

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Pseudomonas putida

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Pseudomonas putida

pH Range

pH Minimum pH Maximum Comment Organism
7.6 9.4 50% of maximal activity at pH 7.6 and at pH 9.4 Pseudomonas putida