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Literature summary for 3.1.3.8 extracted from

  • Powar, V.K.; Jagannathan, V.
    Purification and properties of phytate-specific phosphatase from Bacillus subtilis (1982), J. Bacteriol., 151, 1102-1108.
    View publication on PubMedView publication on EuropePMC

General Stability

General Stability Organism
elastase, no effect Bacillus subtilis
papain, no effect Bacillus subtilis
trypsin, no effect Bacillus subtilis
urea, 8 M, 0°C, 10 h, unaffected Bacillus subtilis

Inhibitors

Inhibitors Comment Organism Structure
Ba2+
-
Bacillus subtilis
Borate
-
Bacillus subtilis
Cd2+
-
Bacillus subtilis
EDTA
-
Bacillus subtilis
Hg2+
-
Bacillus subtilis
Sr2+
-
Bacillus subtilis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.05
-
myo-inositol hexakisphosphate at pH 7.5 Bacillus subtilis
0.06
-
myo-inositol hexakisphosphate at pH 6.5 Bacillus subtilis
0.1
-
myo-inositol hexakisphosphate at pH 6 Bacillus subtilis
0.15
-
myo-inositol hexakisphosphate at pH 5.5 Bacillus subtilis

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ required Bacillus subtilis

Organism

Organism UniProt Comment Textmining
Bacillus subtilis
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
no modification the enzyme contains no carbohydrate or inositol Bacillus subtilis

Purification (Commentary)

Purification (Comment) Organism
-
Bacillus subtilis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
8.53
-
-
Bacillus subtilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
myo-inositol hexakisphosphate + H2O
-
Bacillus subtilis 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 7.5
-
Bacillus subtilis