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Literature summary for 3.1.4.2 extracted from

  • Mitra, Y.; Chowdhury, M.
    Ca2+ dependent activation of rat uterine glycerylphosphorylcholine diesterase: Presence of a positive modulator protein in uterine secretion (1994), Mol. Cell. Biochem., 139, 101-108.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
activator protein 18.5 kDa 2fold increase of activation, co-purified with the enzyme Rattus sp.
Calmodulin activation, source: bovine Rattus sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.35
-
glycerophosphocholine partially purified enzyme Rattus sp.
0.65
-
glycerophosphocholine
-
Rattus sp.

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Rattus sp.
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ 6-fold activation at 5 mM, 2-fold activation at 0.1 mM with sigmoidal kinetic charactaristics Rattus sp.
Mg2+ 2-fold activation at 0.05 mM Rattus sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
sn-glycero 3-phosphorylcholine + H2O Rattus sp. cellular phosphatidylcholine catabolic pathway ?
-
?

Organism

Organism UniProt Comment Textmining
Rattus sp.
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Rattus sp.

Source Tissue

Source Tissue Comment Organism Textmining
uterus
-
Rattus sp.
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.19
-
partially purified enzyme Rattus sp.
4.57
-
0.55 æM activator protein added Rattus sp.
5.72
-
1.1 æM activator protein added Rattus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glycerophosphocholine + H2O
-
Rattus sp. glycerol 1,2-cyclic phosphate + choline
-
?
sn-glycero 3-phosphorylcholine + H2O exclusive substrates Rattus sp. sn-glycerol 3-phosphate + choline
-
?
sn-glycero 3-phosphorylcholine + H2O cellular phosphatidylcholine catabolic pathway Rattus sp. ?
-
?