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Literature summary extracted from

  • Takimoto, K.; Okada, M.; Matsuda, Y.; Nakagawa, H.
    Purification and properties of myo-inositol-1-phosphatase from rat brain (1985), J. Biochem., 98, 363-370.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.1.3.25 Ca2+ strong competitive against Mg2+ Rattus norvegicus
3.1.3.25 Cu2+
-
Rattus norvegicus
3.1.3.25 Li+ inhibits 50% of activity at 1 mM, uncompetitive inhibitor Rattus norvegicus
3.1.3.25 Mn2+ strong competitive against Mg2+ Rattus norvegicus
3.1.3.25 NaF inhibits by 60% and 100% at 1 mM and 5 mM respectively Rattus norvegicus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.1.3.25 0.12
-
DL-myo-inositol 1-phosphate
-
Rattus norvegicus
3.1.3.25 0.19
-
2'-AMP
-
Rattus norvegicus
3.1.3.25 0.77
-
Glycerol 2-phosphate
-
Rattus norvegicus

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.3.25 cytoplasm
-
Rattus norvegicus 5737
-

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.1.3.25 Co2+ 40% stimulation Rattus norvegicus
3.1.3.25 Co2+ less effective than Mg2+, cannot substitute for Mg2+ Rattus norvegicus
3.1.3.25 Fe2+ less effective than Mg2+, cannot substitute for Mg2+ Rattus norvegicus
3.1.3.25 Mg2+ stimulates Rattus norvegicus
3.1.3.25 Mn2+ stimulates slightly Rattus norvegicus
3.1.3.25 Zn2+ 40% stimulation Rattus norvegicus

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.1.3.25 29000
-
2 * 29000, SDS-PAGE Rattus norvegicus
3.1.3.25 55000
-
gel filtration Rattus norvegicus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.1.3.25 myo-inositol 1-phosphate + H2O Rattus norvegicus
-
myo-inositol + phosphate
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.1.3.25 Rattus norvegicus
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.1.3.25 6000 and 2563fold Rattus norvegicus

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.3.25 brain
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1.3.25 0.85
-
-
Rattus norvegicus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.3.25 2'-AMP + H2O
-
Rattus norvegicus adenosine + phosphate
-
?
3.1.3.25 2'-GMP + H2O
-
Rattus norvegicus guanosine + phosphate
-
?
3.1.3.25 DL-myo-inositol 1-phosphate + H2O
-
Rattus norvegicus DL-myo-inositol + phosphate
-
?
3.1.3.25 glycerol 2-phosphate + H2O
-
Rattus norvegicus glycerol + phosphate
-
?
3.1.3.25 L-glycerol 1-phosphate + H2O
-
Rattus norvegicus glycerol + phosphate
-
?
3.1.3.25 additional information
-
Rattus norvegicus ?
-
?
3.1.3.25 myo-inositol 1-phosphate + H2O
-
Rattus norvegicus myo-inositol + phosphate
-
?

Subunits

EC Number Subunits Comment Organism
3.1.3.25 dimer 2 * 29000, SDS-PAGE Rattus norvegicus

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.1.3.25 37
-
-
Rattus norvegicus

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.3.25 7.4
-
for L-myo-inositol-1-phosphate Rattus norvegicus
3.1.3.25 8
-
for 2-AMP, beta-glycerophosphate Rattus norvegicus