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Literature summary extracted from

  • Ullah, A.H.J.; Cummins, B.J.
    Immobilization of Aspergillus ficuum extracellular phytase on fractogel (1987), Biotechnol. Appl. Biochem., 9, 380-388.
No PubMed abstract available

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.1.3.8 0.135
-
myo-inositol hexakisphosphate immobilized enzyme Aspergillus ficuum
3.1.3.8 1
-
myo-inositol hexakisphosphate immobilized enzyme Aspergillus ficuum

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.3.8 extracellular
-
Aspergillus ficuum
-
-

Organism

EC Number Organism UniProt Comment Textmining
3.1.3.8 Aspergillus ficuum
-
-
-

Storage Stability

EC Number Storage Stability Organism
3.1.3.8 45 days, no significant loss of activity Aspergillus ficuum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.3.8 myo-inositol hexakisphosphate + H2O
-
Aspergillus ficuum 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.1.3.8 65
-
immobilized enzyme Aspergillus ficuum

Temperature Range [°C]

EC Number Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
3.1.3.8 35 70 30°C: about 45% of maximal activity, 70°C: about 55% of maximal activity Aspergillus ficuum

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.1.3.8 additional information
-
immobilized enzyme has higher thermal stability as the untreated enzyme Aspergillus ficuum
3.1.3.8 70
-
30 min, 3.3% loss of activity Aspergillus ficuum

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.1.3.8 additional information
-
additional information turnover number of immobilized enzyme Aspergillus ficuum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.3.8 2.5
-
and a second optimum which is higher at pH 5.0 Aspergillus ficuum
3.1.3.8 5
-
and a second optimum which is lower at pH 2.5 Aspergillus ficuum