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Literature summary extracted from

  • Palmer, F.B.St.C.
    Triphosphoinositide phosphodiesterase in a protozoan - Crithidia fasciculata (1973), Biochim. Biophys. Acta, 326, 194-200.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.1.4.11 cetyltrimethylammonium bromide stimulates Crithidia fasciculata
3.1.4.11 diethyl ether stimulates Crithidia fasciculata

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.1.4.11 anionic amphipathic substances
-
Crithidia fasciculata
3.1.4.11 Cys
-
Crithidia fasciculata
3.1.4.11 EDTA complete inhibition at 1 mM Crithidia fasciculata
3.1.4.11 EGTA
-
Crithidia fasciculata
3.1.4.11 Hg2+
-
Crithidia fasciculata
3.1.4.11 iodoacetamide 1.0 mM, 16% inhibition Crithidia fasciculata
3.1.4.11 Phenylmercuriacetate
-
Crithidia fasciculata
3.1.4.11 reduced glutathione
-
Crithidia fasciculata

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.1.4.11 Ca2+ required Crithidia fasciculata
3.1.4.11 K+ stimulates Crithidia fasciculata

Organism

EC Number Organism UniProt Comment Textmining
3.1.4.11 Crithidia fasciculata
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.4.11 phosphatidylinositol 4,5-bisphosphate + H2O
-
Crithidia fasciculata D-myo-inositol 1,4,5-trisphosphate + diacylglycerol
-
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pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.4.11 7 7.2
-
Crithidia fasciculata

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.1.4.11 6.4 7.8 pH 6.4: about 55% of maximal activity, pH 7.8: about 20% of maximal activity Crithidia fasciculata