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Literature summary for 2.7.1.32 extracted from

  • Kinney, A.J.; Moore, T.S.
    Phosphatidylcholine synthesis in castor bean endosperm: characteristics and reversibility of the choline kinase reaction (1988), Arch. Biochem. Biophys., 260, 102-108.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
hemicholinium
-
Ricinus communis
MgADP-
-
Ricinus communis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Ricinus communis

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm
-
Ricinus communis 5737
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ requires free Mg2+ as well as MgATP2- Ricinus communis
Mg2+ optimal stimulation at 13 mM in the presence of 10 mM ATP Ricinus communis
Mn2+ cannot substitute for Mg2+ Ricinus communis

Organism

Organism UniProt Comment Textmining
Ricinus communis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Ricinus communis

Reaction

Reaction Comment Organism Reaction ID
ATP + choline = ADP + phosphocholine forward reaction: ordered mechanism with MgATP2- binding first, followed by choline Ricinus communis

Source Tissue

Source Tissue Comment Organism Textmining
endosperm
-
Ricinus communis
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + choline
-
Ricinus communis ADP + O-phosphocholine
-
r

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
ADP + O-phosphocholine Ricinus communis
10
-
ATP + choline Ricinus communis