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Literature summary for 4.3.1.19 extracted from

  • Halgand, F.; Wessel, P.M.; Laprevote, O.; Dumas, R.
    Biochemical and mass spectrometric evidence for quaternary structure modifications of plant threonine deaminase induced by isoleucine (2002), Biochemistry, 41, 13767-13773.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Arabidopsis thaliana

Inhibitors

Inhibitors Comment Organism Structure
isoleucine allosteric effector inducing dimerization, inhibition is reversed by high concentrations of valine Arabidopsis thaliana

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
59567
-
2 * 59567, mass spectrometry, addition of isoleucine induces dimerization, tetrmerization is restored by addition of high valine concentration Arabidopsis thaliana
59567
-
4 * 59567, mass spectrometry Arabidopsis thaliana
140000
-
native PAGE, in the presence of the allosteric effector isoleucine Arabidopsis thaliana
268000
-
native PAGE, in the absence of allosteric effector Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-threonine Arabidopsis thaliana
-
2-oxobutanoate + NH3
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-

Purification (Commentary)

Purification (Comment) Organism
recombinant threonine deaminase Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-threonine
-
Arabidopsis thaliana 2-oxobutanoate + NH3
-
?

Subunits

Subunits Comment Organism
dimer 2 * 59567, mass spectrometry, addition of isoleucine induces dimerization, tetrmerization is restored by addition of high valine concentration Arabidopsis thaliana
tetramer 4 * 59567, mass spectrometry Arabidopsis thaliana

Synonyms

Synonyms Comment Organism
TD
-
Arabidopsis thaliana
Threonine deaminase
-
Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate 1 molecule per monomer Arabidopsis thaliana