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Literature summary extracted from

  • Aarnes, H.
    Homoserine kinase from barley seedlings (1976), Plant Sci. Lett., 7, 187-194.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
2.7.1.39 NH4+ monovalent cation required, K+ or NH4+ Hordeum vulgare

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.7.1.39 additional information no feedback inhibition by Thr, Met or Ile Hordeum vulgare

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.1.39 0.4
-
 L-homoserine
-
 Hordeum vulgare
2.7.1.39 1
-
 ATP
-
 Hordeum vulgare

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.1.39 Co2+ divalent cation required, efficiency of activation in descending order: Mg2+, Mn2+, Zn2+, Co2+ Hordeum vulgare
2.7.1.39 K+ monovalent cation required, K+ or NH4+ Hordeum vulgare
2.7.1.39 Mg2+ divalent cation required, efficiency of activation in descending order: Mg2+, Mn2+, Zn2+, Co2+ Hordeum vulgare
2.7.1.39 Mn2+ divalent cation required, efficiency of activation in descending order: Mg2+, Mn2+, Zn2+, Co2+ Hordeum vulgare
2.7.1.39 Zn2+ divalent cation required, efficiency of activation in descending order: Mg2+, Mn2+, Zn2+, Co2+ Hordeum vulgare

Organism

EC Number Organism UniProt Comment Textmining
2.7.1.39 Hordeum vulgare
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.7.1.39 partial Hordeum vulgare

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.7.1.39 seedling etiolated Hordeum vulgare
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.1.39 ATP + L-homoserine
-
 Hordeum vulgare ADP + O-phospho-L-homoserine
-
 ?

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
2.7.1.39 additional information
-
 homoserine and MgATP2- protect against heat inactivation Hordeum vulgare