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Literature summary extracted from

  • Flavin, M.; Slaughter, C.
    Purification and properties of threonine synthetase of Neurospora (1960), J. Biol. Chem., 235, 1103-1108.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.2.3.1 KCN 22% inhibition at 1 mM Neurospora crassa
4.2.3.1 L-cysteine 85% inhibition at 35 mM Neurospora crassa
4.2.3.1 NH2OH 65% inhibition at 1 mM Neurospora crassa
4.2.3.1 phosphate 40% inhibition at 50 mM Neurospora crassa
4.2.3.1 phospho-threonine 35% inhibition at 10 mM Neurospora crassa

Organism

EC Number Organism UniProt Comment Textmining
4.2.3.1 Neurospora crassa
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.2.3.1
-
Neurospora crassa

Reaction

EC Number Reaction Comment Organism Reaction ID
4.2.3.1 O-phospho-L-homoserine + H2O = L-threonine + phosphate reaction proceeds via phospate removal and isomerization from primary to secondary alcohol Neurospora crassa

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.2.3.1 1.73
-
-
Neurospora crassa

Storage Stability

EC Number Storage Stability Organism
4.2.3.1 -15°C, glycylglycine, several months Neurospora crassa

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.2.3.1 O-phospho-L-homoserine + H2O
-
Neurospora crassa L-threonine + phosphate
-
ir

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
4.2.3.1 30
-
enzyme assay at Neurospora crassa

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.2.3.1 7.3
-
enzyme assay at Neurospora crassa

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
4.2.3.1 5.2
-
inactivation and precipitation below Neurospora crassa

Cofactor

EC Number Cofactor Comment Organism Structure
4.2.3.1 pyridoxal 5'-phosphate required cofactor Neurospora crassa