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Information on EC 3.1.3.26 - 4-phytase
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3.1.3.26 4-phytaseSpecify your search results
Word Map
- 3.1.3.26
- phosphorus
-
broiler
-
meal
-
phytic
- aspergillus
- ash
- wheat
-
bird
-
kinin
- soybean
- niger
-
factorial
- corn
- bradykinin
-
corn-soybean
- tibia
-
poultry
- cereal
-
kallikrein-kinin
-
digesta
-
bran
-
prekallikrein
-
flour
-
submandibular
-
starter
- xylanase
-
kallikreins
-
monogastric
- aprotinin
-
barrows
-
manure
-
quadratic
-
prostate-specific
- hexaphosphate
-
allotted
- kininogenase
-
grower
- trasylol
- synthesis
- agriculture
-
kallikrein-like
-
feedstuffs
-
antinutritional
-
excreta
-
indigestible
-
kallikrein-related
-
amidolytic
-
coli-derived
-
kininase
-
dough
- nutrition
-
hageman
-
equivalency
- biotechnology
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
phytase, purple acid phosphatase, 6-phytase, histidine acid phosphatase, phytase b, phya2, phya1, multiple inositol polyphosphate phosphatase, minpp, ronozyme, 
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
(natto) phytase
4-phytase
6-phytase
AppA
AppA2 phytase
histidine acid phosphatase
Minpp
MOK1 phytase
multiple inositol polyphosphate phosphatase
myo-inositol(1,2,3,4,5,6)hexakisphosphate phosphohydrolase
myo-inositolhexakisphosphate phosphohydrolase
PAP
PAP type I
PAPhys
Phy
PhyA
PhyA2
PhyB
phytase
phytate 6-phosphatase
-
-
-
-
purple acid phosphatase
r-PhyA170
r-PhyA86
6-phytase
-
-
-
-
AppA2 phytase
-
the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
phytase
-
-
-
-
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
myo-inositol hexakisphosphate + H2O = 1D-myo-inositol 1,2,3,5,6-pentakisphosphate + phosphate
The product can also be designated as 1L-myo-inositol 1,2,3,4,5-pentakisphosphate when the 1L numbering is applied. Therfore the enzyme is frequently called 6-phytase.
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-
-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hydrolysis of phosphoric ester
-
-
-
-
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SYSTEMATIC NAME
IUBMB Comments
myo-inositol-hexakisphosphate 4-phosphohydrolase
-
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CAS REGISTRY NUMBER
COMMENTARY
9001-89-2
-
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
5'-ATP + H2O
?
-
250% of the activity with myo-inositol hexakisphosphate
-
?
AMP + phosphate
adenosine + phosphate
-
43.9% of the activity with myo-inositol hexakisphosphate
-
?
D-glucose 6-phosphate + H2O
glucose + phosphate
-
reaction is nearly as efficient as on phytate
-
?
D-ribose 5-phosphate + H2O
D-ribose + phosphate
-
50% of the activity with myo-inositol hexakisphosphate
-
?
myo-inositol hexakisphosphate + H2O
L-myo-inositol 1,2,3,4,5-pentakisphosphate + myo-inositol 1,2,3,4,6-pentakisphosphate + myo-inositol 1,3,4,5,6-pentakisphosphate + myo-inositol 2-phosphate + D-myo-inositol 1,2-bisphosphate + L-myo-inositol 1,2-bis phosphate + L-myo-inositol 1,2,3,4-tetrakisphosphate + phosphate
-
-
-
?
myo-inositol-1,2,3,4,5 pentakisphosphate + H2O
?
-
12% of the activity with myo-inositol 1,2,3,4,5,6-hexakisphosphate
-
-
?
myo-inositol-1,2,3,4,6 pentakisphosphate + H2O
?
-
22% of the activity with myo-inositol 1,2,3,4,5,6-hexakisphosphate
-
-
?
myo-inositol-1,2,4,5,6 pentakisphosphate + H2O
?
-
16% of the activity with myo-inositol 1,2,3,4,5,6-hexakisphosphate
-
-
?
myo-inositol-1,3,4,5,6 pentakisphosphate + H2O
?
-
27% of the activity with myo-inositol 1,2,3,4,5,6-hexakisphosphate
-
-
?
myo-inositol-5-phosphate + H2O
inositol + phosphate
-
18% of the activity with myo-inositol hexakisphosphate
-
-
?
1-naphthyl phosphate + H2O
1-naphthol + phosphate
-
74% of the activity with myo-inositol hexakisphosphate
-
?
1-naphthyl phosphate + H2O
1-naphthol + phosphate
-
130% of the activity with myo-inositol hexakisphosphate
-
?
1-naphthyl phosphate + H2O
1-naphthol + phosphate
-
89.6% of the activity with myo-inositol hexakisphosphate
-
?
2-naphthyl phosphate + H2O
2-naphthol + phosphate
-
63.6% of the activity with myo-inositol hexakisphosphate
-
?
2-naphthyl phosphate + H2O
2-naphthol + phosphate
-
97.1% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
39.8% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
11% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
11% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
101% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
C4B6T1
-
-
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
C4B6T1
-
-
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
59.6% of the activity with myo-inositol hexakisphosphate
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
-
-
-
?
4-nitrophenyl phosphate + H2O
4-nitrophenol + phosphate
-
reaction is nearly as efficient as on phytate
-
?
ADP + H2O
?
-
25.6% of the activity with myo-inositol hexakisphosphate
-
?
ADP + H2O
?
-
14.2% of the activity with myo-inositol hexakisphosphate
-
?
AMP + H2O
adenosine + phosphate
-
9.7fold higher activity than with myo-inositol hexakisphosphate
-
-
?
AMP + H2O
adenosine + phosphate
-
25.0% of the activity with myo-inositol hexakisphosphate
-
?
ATP + H2O
?
-
38.8% of the activity with myo-inositol hexakisphosphate
-
?
ATP + H2O
?
-
22.3% of the activity with myo-inositol hexakisphosphate
-
?
ATP + H2O
?
-
reaction is nearly as efficient as on phytate
-
?
D-fructose 1,6-diphosphate + H2O
?
-
146% of the activity with myo-inositol hexakisphosphate
-
?
D-glucose 1-phosphate + H2O
D-glucose + phosphate
-
28.6% of the activity with myo-inositol hexakisphosphate
-
?
D-glucose 1-phosphate + H2O
D-glucose + phosphate
-
92.0% of the activity with myo-inositol hexakisphosphate
-
?
D-glucose 6-phosphate + H2O
D-glucose + phosphate
-
78.5% of the activity with myo-inositol hexakisphosphate
-
?
diphosphate + H2O
2 phosphate
-
438.5% of the activity with myo-inositol hexakisphosphate
-
?
diphosphate + H2O
2 phosphate
-
735fold higher activity than with myo-inositol hexakisphosphate
-
-
?
glycerol 2-phosphate + H2O
glycerol + phosphate
-
50.8% of the activity with myo-inositol hexakisphosphate
-
?
glycerol 2-phosphate + H2O
glycerol + phosphate
-
19fold higher activity than with myo-inositol hexakisphosphate
-
-
?
glycerol 2-phosphate + H2O
glycerol + phosphate
-
85.6% of the activity with myo-inositol hexakisphosphate
-
?
glycerol 3-phosphate + H2O
glycerol + phosphate
-
15fold higher activity than with myo-inositol hexakisphosphate
-
-
?
inositol-1-phosphate + H2O
inositol + phosphate
-
myo-inositol-1-phosphate, 6% of the activity with myo-inositol hexakisphosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
product release is the rate limiting step of the reaction
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
product release is the rate limiting step of the reaction
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
product release is the rate limiting step of the reaction
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
rapid equilibrium ordered mechanism in which binding of Ca2+ to the active site is necessary for the essential activation of the enzyme. Ca2+ turns out to be also required for the substrate because the enzyme is only able to hydrolyze the calcium-phythate complex
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
rapid equilibrium ordered mechanism in which binding of Ca2+ to the active site is necessary for the essential activation of the enzyme. Ca2+ turns out to be also required for the substrate because the enzyme is only able to hydrolyze the calcium-phythate complex
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
very specific for, no activity on other phosphate esters
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
Bacillus sp. (in: Bacteria) DECSR1
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
Bacillus sp. (in: Bacteria) KHU-10
-
very specific for, no activity on other phosphate esters
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
the enzyme is able to hydrolyze any of the six phosphate groups of phytate. The reaction is likely to proceed through a direct attack of the metal-bridging water molecule on the phosphorous atom of a substrate and the subsequent stabilization of the pentavalent transition state by the bound calcium ions
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
step-wise hydrolysis of myo-inositol hexakisphosphate
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
C4B6T1
-
removal of 5 phosphate residues from each molecule of phytate
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
C4B6T1
-
removal of 5 phosphate residues from each molecule of phytate
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
A2TBB4
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
Q6RK08
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
hydrolyzes phytate in a stepwise manner
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
J8TAT8
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
very specific for phytate
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
very specific for phytate
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
Schwanniomyces castellii
-
constitutive
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
?
myo-inositol hexakisphosphate + H2O
DL-inositol 1,2,3,4,5-pentaphosphate + phosphate
-
major degradation product
-
?
myo-inositol hexakisphosphate + H2O
DL-inositol 1,2,3,4,5-pentaphosphate + phosphate
H9TUK6
-
major degradation product, plus DL-inositol 1,2,4,5,6-pentaphosphate, DL-inositol 1,2,3,4-tetraphosphate and DL-inositol 1,2,4,6-tetraphosphate
-
?
myo-inositol hexakisphosphate + H2O
DL-inositol 1,2,4,5,6-pentaphosphate + phosphate
-
activity of EC 3.1.3.8, 10-14% of product
-
?
myo-inositol hexakisphosphate + H2O
DL-inositol 1,2,4,5,6-pentaphosphate + phosphate
H9TUK6
-
activity of EC 3.1.3.8, 10-14% of product
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
the other isomers of inositol hexaphosphate are hydrolyzed at lower rate in decreasing order: myo-inositol hexakisphosphate, neo-inositol hexakisphosphate, scyllo inositol hexakisphosphate : D-chiro inositol hexakisphosphate, L-chiro inositol hexakisphosphate
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
the phosphate from position 6 is liberated first, followed by the phosphate at positions 5 and 4, or 1 and 3
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate.
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate.
-
-
?
myo-inositol hexakisphosphate + H2O
myo-inositol pentakisphosphate + phosphate
-
-
-
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
-
-
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
-
-
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
Oryza sativa Japonica Group Himalaya
-
-
-
?
p-nitrophenyl phosphate + H2O
p-nitrophenol + phosphate
-
little activity for p-nitrophenyl phosphate above pH 4.0
-
-
?
p-nitrophenyl phosphate + H2O
p-nitrophenol + phosphate
-
little activity for p-nitrophenyl phosphate above pH 4.0
-
-
?
p-nitrophenyl phosphate + H2O
p-nitrophenol + phosphate
-
6% of the activity with myo-inositol hexakisphosphate
-
-
?
phenyl phosphate + H2O
phenol + phosphate
-
84% of the activity with myo-inositol hexakisphosphate
-
?
phenyl phosphate + H2O
phenol + phosphate
-
61.7fold higher activity than with myo-inositol hexakisphosphate
-
-
-
phenyl phosphate + H2O
phenol + phosphate
-
89.2% of the activity with myo-inositol hexakisphosphate
-
?
tetrasodium diphosphate + H2O
?
-
6% of the activity with myo-inositol hexakisphosphate
-
?
tetrasodium diphosphate + H2O
?
-
6% of the activity with myo-inositol hexakisphosphate
-
?
additional information
?
-
-
enzyme exhibits phytase and acid phosphatase activity
-
?
additional information
?
-
-
highest activity in cells in the late stationary phase
-
-
-
additional information
?
-
-
no activity with 4-nitrophenyl phosphate, beta-glycerophosphate, glucose 6-phosphate, sodium glycerophosphate, AMP, ADP and ATP
-
?
additional information
?
-
Bacillus sp. (in: Bacteria) KHU-10
-
no activity with 4-nitrophenyl phosphate, beta-glycerophosphate, glucose 6-phosphate, sodium glycerophosphate, AMP, ADP and ATP
-
?
additional information
?
-
-
less than 5% of the activity with myo-inositol hexakisphosphate with: ATP, ADP, glycerophosphate, glucose 1-phosphate, glucose 6-phosphate, fructose 6-phosphate and mannose 6-phosphate
-
?
additional information
?
-
-
less than 5% of the activity with myo-inositol hexakisphosphate with: ATP, ADP, glycerophosphate, glucose 1-phosphate, glucose 6-phosphate, fructose 6-phosphate and mannose 6-phosphate
-
?
additional information
?
-
-
highest activity under anaerobic conditions, during the exponential growth no activity observed
-
-
-
additional information
?
-
-
undegraded phytates can cause mineral deficiencies in humans. The presence of undigested phytate in the colon may protect against the development of colonic carcinoma
-
-
-
additional information
?
-
substrate specificity of the recombinant isozyme, overview
-
-
-
additional information
?
-
Oryza sativa Japonica Group Himalaya
substrate specificity of the recombinant isozyme, overview
-
-
-
additional information
?
-
-
degradation of phytate by high-phytase Saccharomyces cerevisiae strains during simulated gastrointestinal digestion. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
-
additional information
?
-
-
degradation of phytate by high-phytase Saccharomyces cerevisiae strains during simulated gastrointestinal digestion. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
-
additional information
?
-
-
enzyme hydrolyzes phytate, 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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
-
additional information
?
-
-
enzyme hydrolyzes phytate, 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 (3-phytase) or 1D-myo-inositol 1,2,3,5,6-pentakisphosphate (4-phytase) (i.e. 1L-myo-inositol 1,2,3,4,5-pentakisphosphate if 1L numbering is applied) has not been analyzed. The reaction was monitored by analyzing the released phosphate
-
-
-
additional information
?
-
-
role of phytase in Ca2+ mobilization during germination of mung bean seed via a salvage pathway that involves allosteric activation by myo-inositol triphosphate
-
?
additional information
?
-
-
no cleavage of myo-inositol 2-phosphate, 1,2-cyclic inositol phosphate, Na-3-glycerophosphate
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
myo-inositol hexakisphosphate + H2O
? + phosphate
P34753
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
inducible enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
Schwanniomyces castellii
-
constitutive
-
?
myo-inositol hexakisphosphate + H2O
? + phosphate
-
constitutive enzyme
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
P07102
-
-
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
D6QSX9
-
-
-
?
myo-inositol-1,2,3,4,5,6-hexakisphosphate + H2O
? + phosphate
Oryza sativa Japonica Group Himalaya
D6QSX9
-
-
-
?
additional information
?
-
-
highest activity in cells in the late stationary phase
-
-
-
additional information
?
-
-
highest activity under anaerobic conditions, during the exponential growth no activity observed
-
-
-
additional information
?
-
-
undegraded phytates can cause mineral deficiencies in humans. The presence of undigested phytate in the colon may protect against the development of colonic carcinoma
-
-
-
additional information
?
-
-
degradation of phytate by high-phytase Saccharomyces cerevisiae strains during simulated gastrointestinal digestion. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
-
additional information
?
-
-
degradation of phytate by high-phytase Saccharomyces cerevisiae strains during simulated gastrointestinal digestion. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
-
-
-
additional information
?
-
-
role of phytase in Ca2+ mobilization during germination of mung bean seed via a salvage pathway that involves allosteric activation by myo-inositol triphosphate
-
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Ba2+
-
53% activation at 1 mM, 46% activation at 20 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Ca2+
Cd2+
Co2+
Cu2+
Fe2+
Hg2+
K+
-
40% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Mg2+
Mn2+
Na+
Ni2+
Sr2+
Zn2+
additional information
Ca2+
-
45% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Ca2+
-
rapid equilibrium ordered mechanism in which binding of ca2+ to the active site is necessary for the essential activation of the enzyme. Ca2+ turns out to be also required for the substrate because the enzyme is only able to hydrolyze the calcium-phytate complex. 4 mol of Ca2+ bind to 1 mol of phytate
Ca2+
-
enhances thermal stablity and shows an impact on pH-optimum and temperature optimum
Ca2+
is found essential for both refolding and activity of the enzyme
Ca2+
-
the crystal structure of the enzyme in complex with inorganic phosphate reveals that two phosphates and four calcium ions are tightly bound at the active site
Ca2+
enzyme is Ca2+-dependent, drastically improves thermal stability of the enzyme
Ca2+
-
2 mM, pH 8 phytase, more than 300% activation at concentrations equimolar to the substrate, pH 8
Co2+
-
35% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Fe2+
-
13% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Hg2+
-
13% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Na+
-
a high concentration of sodium chloride affects the activity of fungal phytase in the pH 3-4 range
Na+
a high concentration of sodium chloride shifts the pH optimum to 2.0 from 5.5
Zn2+
-
13% activation at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Zn2+
-
activity rises by about 40% as the Zn2+ concentration, rises from 0.02 mM to 0.08 mM. Maximal increase in activity in 0.05 mM Zn2+
additional information
-
no effect is observed after addition of 200 mM Fe2+ or Fe3+
additional information
-
not affected at concentrations up to 10 mM by: Cd2+, Ca2+, K+, Mg2+, Mn2+, Ni2+ and Na+
additional information
not influenced by K+, Co2+, Cr3+, Cu2+, Mg2+, Mn2+, Ag+, and Ca2+
additional information
-
not influenced by K+, Co2+, Cr3+, Cu2+, Mg2+, Mn2+, Ag+, and Ca2+
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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
guanidinium-HCl
-
6 M, 92% inhibition. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
K+
-
16% inhibition at 20 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
p-nitrophenol
-
stronger inhibition of acid phytase than of alkaline phytase
PMSF
-
80% inhibition at 2.0 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Al3+
-
98% inhibition at 1 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Co2+
-
60% inhibition at 20 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Cu2+
-
70% inhibition at 5 mM, 95% inhibition at 15 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Cu2+
-
effect on the ability of phytase to hydrolyze phytate phosphorus is dependent on pH. At pH 2.5 (gastric pH), no inhibition is noted among the treatments (copper citrate, copper chloride, copper lysinate, cupper sulfate, tribasic copper chloride) except that the addition of 250 and 500 mg Cu/kg diet from copper chloride and 500 mg Cu/kg from copper sulfate slightly inhibits phytate phosphorus hydrolysis. When pH is increased to 5.5-6.5 (smal intestinal digesta) phytate phosphorus hydrolysis is greatly inhibited
Cu2+
-
effect on the ability of phytase to hydrolyze phytate phosphorus is dependent on pH. At pH 2.5 (gastric pH), no inhibition is noted among the treatments (copper citrate, copper chloride, copper lysinate, cupper sulfate, tribasic copper chloride) except that the addition of 250 and 500 mg Cu/kg diet from copper chloride and 500 mg Cu/kg from copper sulfate slightly inhibits phytate phosphorus hydrolysis. When pH is increased to 5.5-6.5 (smal intestinal digesta) phytate phosphorus hydrolysis is greatly inhibited
F-
-
10 mM NaF, pH 5 phytase is inhibited by 80%, no effect on pH 8 phytase
Fe2+
-
59% inhibition at 5-15 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Hg2+
-
48% inhibition at 10 mM, 87% inhibition at 20 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
KI
-
6 M, 95% inhibition. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Mg2+
-
61% inhibition at 5 mM, 92% inhibition at 15 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Mn2+
-
73% inhibition at 4 mM, 97% inhibition at 15 mM. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
myo-inositol hexakisphosphate
-
activity decreases with increasing concentration of myo-inositol hexakisphosphate
myo-inositol hexasulfate
-
the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
PCMB
-
0.2 mM, 100% inhibition of acid phytase, 78% inhibition of alkaline phytase
Pepsin
-
loses 80% of the initial activity in the presence of 3000 units pepsin
-
phosphate
-
4.0 mM, 75.5% of phytase 1 activity, 80.2% inhibition of phytase 2 activity
SDS
-
0.1%, 92% inhibition. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Urea
-
in presence of 2 mM dithiothreitol, the inactivation and unfolding are greatly enhanced at the same concentration of denaturant. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Urea
-
8 M, 65% inhibition. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
vanadate
-
51V-NMR studies show that vanadate is incorporated in the active site of the enzyme. The 6-phytase, which is inactive in the sulfoxidation of thioanisole, show higher affinity for vanadate at pH 7.6 than at pH 5.0. Vanadium is covalently coordinated in the active site of the enzyme to an apical histidine and to oxygen donors. Two sites are available for coordination. Upon addition of H2O2 no peroxide-vanadate-phytase complexes are observed for the 6-phytase as seen for 3-phytase, in agreement with the inactivity of the 6-phytase for the oxidation of thioanisole
Zn2+
-
moderately inhibited by up to 2 mM ZnCl2, strongly inhibited at higher concentrations
additional information
-
recombinant enzyme is inhibited by antibody raised against a 20-mer internal peptide
-
additional information
highly resistant to pepsin or trypsin treatment
-
additional information
-
not affected at concentrations up to 10 mM by: EDTA, Cd2+, Ca2+, K+, Mg2+, Mn2+, Ni2+ and Na+
-
additional information
-
no substrate inhibition by 4-nitrophenyl phosphate up to 10 mM
-
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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
2-mercaptoethanol
-
0.1 mM, 59% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
cetyl trimethyl ammonium bromide
-
1%, 80% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
iodoacetic acid
-
0.1 mM, 28% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
L-Tartaric acid
-
0.1 mM, 34% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
oxalate
-
0.1 mM, 52% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
p-hydroxymercuribenzoate
-
0.1 mM, 22% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Phosphomycin
-
0.1 mM, 37% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
PMSF
-
0.1 mM, 63% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Sodium azide
-
0.1 mM, 37% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Tween 80
-
0.1% v/v, activates up to 167% for PI fraction and 137% for PII fraction
Tween-20
-
1%, 80% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Tween-80
-
1%, 77% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
citrate
-
0.1 mM, 45% activation.The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
EDTA
-
0.1 mM, 54% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
Triton X-100
-
5%, 75% activation. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified
additional information
-
the strain shows increased phytase activity in a culture medium with 40 g/l sucrose, KH2P04 providing 5 mg/l phosphorus, and cultivation temperature of 24°C
-
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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
additional information
additional information
substrate specificity and kinetics of recombinant isozymes, overview
-
0.016
myo-inositol hexakisphosphate
-
in 0.1 M sodium acetate buffer, pH 4.5, at 37°C
0.0386
myo-inositol hexakisphosphate
-
mutant enzyme E228K, in 0.2 M citrate buffer at pH 5.5 and 37°C
0.09
myo-inositol hexakisphosphate
-
mutant enzyme E272K, in 0.2 M glycine-HCl, at pH 3.2