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Literature summary extracted from

  • Fu, X.Y.; Xue, C.H.; Miao, B.C.; Liang, J.N.; Li, Z.J.; Cui, F.X.
    Purification and characterization of trimethylamine-N-oxide demethylase from jumbo squid (Dosidicus gigas) (2006), J. Agric. Food Chem., 54, 968-972.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
4.1.2.32 dithiothreitol 1 mM, 17.9% increase of activity Dosidicus gigas
4.1.2.32 EDTA 10 mM, 94.2% increase of activity Dosidicus gigas
4.1.2.32 Na2SO3 10 mM, 97.4% increase of activity Dosidicus gigas
4.1.2.32 NADH 0.4 mM, 41.7% increase of activity Dosidicus gigas

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.1.2.32 acetate 97.1% inhibition at 10 mM Dosidicus gigas
4.1.2.32 phytic acid 95.6% inhibition at 10 mM Dosidicus gigas
4.1.2.32 tea polyphenol 98.6% inhibition at 10 mM Dosidicus gigas

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.1.2.32 26.2
-
Trimethylamine N-oxide in 100 mM Tris-acetate (pH 7.0), 2 mM cysteine, 2 mM ascorbate, and 0.2 mM FeCl2, at 50°C Dosidicus gigas

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
4.1.2.32 Ca2+ 10 mM, 20.5% increase of activity Dosidicus gigas
4.1.2.32 Mg2+ 10 mM, 28.8% increase of activity Dosidicus gigas
4.1.2.32 additional information not affected by Fe2+ Dosidicus gigas

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
4.1.2.32 17500
-
SDS-PAGE Dosidicus gigas
4.1.2.32 17700
-
gel filtration Dosidicus gigas

Organism

EC Number Organism UniProt Comment Textmining
4.1.2.32 Dosidicus gigas
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.1.2.32 diethylaminoethyl-cellulose chromatography and Sephacryl S-300 gel filtration Dosidicus gigas

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.1.2.32 0.19
-
cell extract, at 50°C Dosidicus gigas
4.1.2.32 159
-
after 839fold purification, at 50°C Dosidicus gigas

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.1.2.32 Trimethylamine N-oxide
-
Dosidicus gigas Dimethylamine + formaldehyde
-
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Synonyms

EC Number Synonyms Comment Organism
4.1.2.32 TMAOase
-
Dosidicus gigas
4.1.2.32 trimethylamine-N-oxide demethylase
-
Dosidicus gigas

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
4.1.2.32 55
-
-
Dosidicus gigas

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.1.2.32 7
-
-
Dosidicus gigas

pH Range

EC Number pH Minimum pH Maximum Comment Organism
4.1.2.32 7 9
-
Dosidicus gigas