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Genetic element (GENE)
last updated: 04 Dec 2020
Phytase
EN
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Phosphoanhydride phosphorylaseEN
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appAEN
phy02
EN
Protein coding sequence
No
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BCH-ORGA-SCBD-14930-5 Organism Escherichia coli (ECOLX)Bacteria
The phy02 sequence was derived from the E. coli strain K12 appA gene. Site-directed mutagenesis was applied to introduce amino acid changes for increased thermostability and gastric digestion resilience.
EN
EN
Phytases catalyze the removal of phosphate groups from phytate (phytic acid). The enzyme promotes the hydrolysis of the phosphoester bond, producing inositol and phosphate.
EN
Phytases are often added to animal feed to improve digestibility as plants store phosphorous in an indigestible form, phytic acid, which is considered an antinutrient (chelating iron, zinc, magnesium and calcium) and its excretion can lead to environmental phosphate pollution.
EN
- UniProtKB - P07102 (PPA_ECOLI) - Periplasmic AppA protein [ English ]
- Crystal structures of Escherichia coli phytase and its complex with phytate.pdf [ English ]
- Effect of Phytase Derived from the E. coli AppA Gene on Weaned Piglet Performance, Apparent Total Tract Digestibility and Bone Mineralization.pdf [ English ]
- WO2017049094A1(Engineered phytases and methods of using the same).pdf [ English ]
- GenBank - phosphoanhydride phosphorylase [Escherichia coli B088] (EFE63517.1) [ English ]
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