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Literature summary extracted from

  • Shizuta, Y.; Hayaishi, O.
    Regulation of biodegradative threonine deaminase (1976), Curr. Top. Cell. Regul., 11, 99-146.
    View publication on PubMed

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.3.1.19 5
-
L-Ser in presence of AMP Escherichia coli
4.3.1.19 11
-
L-Thr in presence of AMP Escherichia coli
4.3.1.19 40
-
L-Ser in absence of AMP Escherichia coli
4.3.1.19 91
-
L-Thr in absence of AMP Escherichia coli

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
4.3.1.19 147000
-
sedimentation equilibrium ultracentrifugation Escherichia coli
4.3.1.19 184000
-
-
Clostridium tetanomorphum

Organism

EC Number Organism UniProt Comment Textmining
4.3.1.19 Clostridium tetanomorphum
-
-
-
4.3.1.19 Escherichia coli
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.3.1.19 L-Ser
-
Escherichia coli pyruvate + NH3
-
?
4.3.1.19 L-threonine
-
Escherichia coli 2-oxobutanoate + NH3
-
?
4.3.1.19 L-threonine
-
Clostridium tetanomorphum 2-oxobutanoate + NH3
-
?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.3.1.19 7.4 9.2 in presence of AMP Escherichia coli
4.3.1.19 9 9.8 in absence of AMP Escherichia coli

Cofactor

EC Number Cofactor Comment Organism Structure
4.3.1.19 ADP activates Clostridium tetanomorphum
4.3.1.19 AMP activates Escherichia coli
4.3.1.19 pyridoxal 5'-phosphate contains 4 mol of pyridoxal 5'-phosphate per mol of enzyme Escherichia coli
4.3.1.19 pyridoxal 5'-phosphate contains 4 mol of pyridoxal 5'-phosphate per mol of enzyme Clostridium tetanomorphum
4.3.1.19 pyridoxal 5'-phosphate cofactor Escherichia coli
4.3.1.19 pyridoxal 5'-phosphate cofactor Clostridium tetanomorphum