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Literature summary for 2.7.1.82 extracted from

  • Weinhold, P.A.; Rethy, V.B.
    The separation, purification, and characterization of ethanolamine kinase and choline kinase from rat liver (1974), Biochemistry, 13, 5135-5141.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
choline ethanolamine kinase I not inhibited, ethanolamine kinase II strongly inhibited Rattus norvegicus

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ can substitute for Mg2+ Rattus norvegicus
Mg2+ ethanolamine kinase I: uses MgATP2- as substrate but also has an additional requirement for Mg2+ Rattus norvegicus
Mg2+ maximal activation at 16 mM MgATP2-, inhibition above Rattus norvegicus
Mg2+ Km MgATP2-: 14 mM Rattus norvegicus
Mg2+ ethanolamine kinase II: requires MgATP2- as substrate, maximal activation with 10 mM of Mg2+ and ATP Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
36000
-
ethanolamine kinase I, gel filtration Rattus norvegicus
160000
-
ethanolamine kinase II, gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
ethanolamine kinase I and II Rattus norvegicus

Reaction

Reaction Comment Organism Reaction ID
ATP + ethanolamine = ADP + O-phosphoethanolamine ethanolamine kinase II and choline kinase do not use a common active site Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Storage Stability

Storage Stability Organism
-20°C, 0.02 M phosphate buffer, pH 7.0, 2.9 mM DTT, protein concentration 1.0 mg/ml, ethanolamine kinase I, 2 days, 40% loss of activity Rattus norvegicus
4°C, 1 week, ethanolamine kinase I, 50% loss of activity Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + ethanolamine
-
Rattus norvegicus ADP + O-phosphoethanolamine
-
?
choline + ATP ethanolamine kinase II, not ethanolamine kinase I Rattus norvegicus ADP + O-phosphocholine
-
?

Synonyms

Synonyms Comment Organism
More cf. EC 2.7.1.32 Rattus norvegicus
More ethanolamine kinase II and choline kinase do not use a common active site Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5 8.5 ethanolamine kinase I Rattus norvegicus
8 9.5 ethanolamine kinase II Rattus norvegicus