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Literature summary for 3.1.3.8 extracted from

  • Tambe, S.M.; Kaklij, G.S.; Kelkar, S.M.; Parekh, L.J.
    Two distinct molecular forms of phytase from Klebsiella aerogenes: evidence for unusually small active enzyme peptide (1994), J. Ferment. Bioeng., 77, 23-27.
No PubMed abstract available
Search for more literature for 3.1.3.8

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.062
-
 myo-inositol hexakisphosphate high molecular weight form Klebsiella aerogenes
0.114
-
 myo-inositol hexakisphosphate low molecular weight form Klebsiella aerogenes

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
12800
-
 low molecular weight form, gel filtration Klebsiella aerogenes
700000
-
 high molecular weight form, gel filtration Klebsiella aerogenes

Organism

Organism UniProt Comment Textmining
Klebsiella aerogenes
-
 The enzyme may be a 3-phytase (EC 3.1.3.8), or a 4-phytase (synonym 6-phytase, EC 3.1.3.26). The product of the hydrolysis of myo-inositol hexakisphosphate to 1D-myo-inositol 1,2,4,5,6-pentakisphosphate or alternatively 1D-myo-inositol 1,2,3,5,6-pentakisphosphate has not been identified.
-
Klebsiella aerogenes
-
 a low molecular weight form and a high molecular weight form
-

Substrates and Products (Substrate)

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

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
additional information
-
 thermal stability of the high molecular weight form and the low molecular weight form Klebsiella aerogenes

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5
-
 high molecular weight form Klebsiella aerogenes
5.2
-
 low molecular weight form Klebsiella aerogenes