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Literature summary for 1.5.1.23 extracted from

  • Kanno, N.; Sato, M.; Nagahisa, E.; Sato, Y.
    Purification and characterization of tauropine dehydrogenase from the marine sponge Halichondria japonica Kadota (demospongia) (1997), Fish. Sci., 63, 414-420.
No PubMed abstract available

General Stability

General Stability Organism
unstable to freezing and thawing Halichondria japonica

Inhibitors

Inhibitors Comment Organism Structure
pyruvate
-
Halichondria japonica
tauropine substrate inhibition Halichondria japonica

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.036
-
NADH
-
Halichondria japonica
0.068
-
pyruvate
-
Halichondria japonica
0.16
-
NAD+
-
Halichondria japonica
0.39
-
tauropine
-
Halichondria japonica
37
-
taurine
-
Halichondria japonica

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
36500
-
gel filtration Halichondria japonica
37000
-
1 * 37000, SDS-PAGE Halichondria japonica

Organism

Organism UniProt Comment Textmining
Halichondria japonica
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Halichondria japonica

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
780
-
-
Halichondria japonica

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Aminomethane sulfonic acid + pyruvate + NADH at 10.9% of the activity with taurine Halichondria japonica N2-(1-Carboxyethyl)aminomethanesulfonic acid + NAD+ + H2O
-
?
Gly + pyruvate + NADH at 6.7% of the activity with taurine Halichondria japonica ?
-
?
Homotaurine + pyruvate + NADH at 8.1% of the activity with taurine Halichondria japonica ?
-
?
Hypotaurine + pyruvate + NADH at 35.2% of the activity with taurine Halichondria japonica N2-(1-Carboxyethyl)aminoethanesulfinic acid + NAD+ + H2O
-
?
Taurine + 2-oxobutanoate + NADH ,at 7.9% of the activity with pyruvate Halichondria japonica ?
-
?
Taurine + 2-oxopentanoate + NADH at 4.8% of the activity with pyruvate Halichondria japonica ?
-
?
Taurine + 3-hydroxypyruvate + NADH at 4.1% of the activity with pyruvate Halichondria japonica ?
-
?
Taurine + glyoxylate + NADH at 12.8% of the activity with pyruvate Halichondria japonica ?
-
?
taurine + oxaloacetate + NADH at 85.8% of the activity with pyruvate Halichondria japonica ?
-
?
Taurine + pyruvate + NADH r Halichondria japonica Tauropine + NAD+ + H2O
-
?

Subunits

Subunits Comment Organism
monomer 1 * 37000, SDS-PAGE Halichondria japonica

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8
-
tauropine formation Halichondria japonica
9
-
tauropine oxidation Halichondria japonica

pH Range

pH Minimum pH Maximum Comment Organism
5.5 7.4 50% of maximal activity at pH 5.5 and at pH 7.4, tauropine formation Halichondria japonica
8 9 pH 8.0: 50% of maximal activity, pH 9.0: optimum, tauropine oxidation Halichondria japonica

Cofactor

Cofactor Comment Organism Structure
NADH
-
Halichondria japonica