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Literature summary for 2.7.1.39 extracted from

  • Aarnes, H.
    Homoserine kinase from barley seedlings (1976), Plant Sci. Lett., 7, 187-194.
No PubMed abstract available
Search for more literature for 2.7.1.39

Activating Compound

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

Inhibitors

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

KM Value [mM]

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

Metals/Ions

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

Organism

Organism UniProt Comment Textmining
Hordeum vulgare
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Hordeum vulgare

Source Tissue

Source Tissue Comment Organism Textmining
seedling etiolated Hordeum vulgare
-

Substrates and Products (Substrate)

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

Temperature Stability [°C]

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