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Literature summary for 3.1.3.1 extracted from

  • Klumpp, S.; Schultz, J.E.
    Alkaline phosphatase from Paramecium cilia and cell bodies: purification and characterization (1990), Biochim. Biophys. Acta, 1037, 233-239.
    View publication on PubMed

General Stability

General Stability Organism
repeated freezing and thawing in the presence of mercaptoethanol has no effect Paramecium tetraurelia

Inhibitors

Inhibitors Comment Organism Structure
Ca2+ in presence of 0.005 mM Mg2+, Ca2+ acts as an uncompetitive inhibitor, at 0.1 mM Mg2+, Ca2+ inhibits non-competitively Paramecium tetraurelia
diphosphate
-
Paramecium tetraurelia
F-
-
Paramecium tetraurelia
molybdate
-
Paramecium tetraurelia
NEM
-
Paramecium tetraurelia
p-hydroxymercuribenzoate
-
Paramecium tetraurelia
phosphate
-
Paramecium tetraurelia
SH-group blocking agents
-
Paramecium tetraurelia
vanadate
-
Paramecium tetraurelia

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.081
-
p-nitrophenyl phosphate
-
Paramecium tetraurelia

Localization

Localization Comment Organism GeneOntology No. Textmining
cilium
-
Paramecium tetraurelia 5929
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ non-essential mixed-type activator, half-maximal effect at 0.007 mM Paramecium tetraurelia

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
66000
-
gel filtration Paramecium tetraurelia

Organism

Organism UniProt Comment Textmining
Paramecium tetraurelia
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Paramecium tetraurelia

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Paramecium tetraurelia

Storage Stability

Storage Stability Organism
-70°C, stable for at least 6 months Paramecium tetraurelia

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information enzyme with limited substrate specificity, no dephosphorylation of ATP, PEP, glucose 6-phosphate, phosphoinositol 4',5'-bisphosphate, phosphoproteins Paramecium tetraurelia ?
-
?
p-nitrophenyl phosphate + H2O
-
Paramecium tetraurelia p-nitrophenol + phosphate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Paramecium tetraurelia