Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 4.2.3.1 extracted from

  • Laber, B.; Maurer, W.; Hanke, C.; Graefe, S.; Ehlert, S.; Messerschmidt, A.; Clausen, T.
    Characterization of recombinant Arabidopsis thaliana threonine synthase (1999), Eur. J. Biochem., 263, 212-221.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
S-adenosylmethionine same binding site as inhibitor AMP, 85fold increase of activity, maximum activity at 0.06-0.25 mM Arabidopsis thaliana

Application

Application Comment Organism
agriculture possible herbicide target Arabidopsis thaliana

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli Arabidopsis thaliana

Crystallization (Commentary)

Crystallization (Comment) Organism
x-ray diffraction studies Arabidopsis thaliana

Inhibitors

Inhibitors Comment Organism Structure
AMP same binding site as S-adenosylmethionine Arabidopsis thaliana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.03
-
O-phosphohomoserine in presence of S-adenosylmethionine Arabidopsis thaliana
0.12
-
O-phosphohomoserine without S-adenosylmethionine Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast
-
Arabidopsis thaliana 9507
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
2 * 58000, comparison of nucleotide sequence and molecular mass of native enzyme Arabidopsis thaliana
110000
-
gel filtration Arabidopsis thaliana

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
O-phospho-L-homoserine + H2O
-
Arabidopsis thaliana L-threonine + phosphate
-
ir

Subunits

Subunits Comment Organism
dimer 2 * 58000, comparison of nucleotide sequence and molecular mass of native enzyme Arabidopsis thaliana
dimer N-terminal amino acids involved in dimerization Arabidopsis thaliana

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
20
-
enzyme assay at Arabidopsis thaliana

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.0333
-
O-phosphohomoserine without S-adenosylmethionine Arabidopsis thaliana
0.86
-
O-phosphohomoserine in presence of S-adenosylmethionine Arabidopsis thaliana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
enzyme assay at Arabidopsis thaliana