3-phytase

In enzymology, a 3-phytase (EC number|3.1.3.8) is an enzyme that catalyzes the chemical reaction

:myo-inositol hexakisphosphate + H₂O $ightleftharpoons$ 1D-myo-inositol 1,2,4,5,6-pentakisphosphate + phosphate

Thus, the two substrates of this enzyme are myo-inositol hexakisphosphate and H₂O, whereas its two products are 1D-myo-inositol 1,2,4,5,6-pentakisphosphate and phosphate.

This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name of this enzyme class is myo-inositol-hexakisphosphate 3-phosphohydrolase. Other names in common use include 1-phytase, phytase, phytate 1-phosphatase, and phytate 6-phosphatase. This enzyme participates in inositol phosphate metabolism.

tructural studies

As of late 2007, 12 structures have been solved for this class of enzymes, with PDB accession codes PDB link|1CVM, PDB link|1IHP, PDB link|1POO, PDB link|1QFX, PDB link|1QLG, PDB link|1QWO, PDB link|1SK8, PDB link|1SK9, PDB link|1SKA, PDB link|1SKB, PDB link|2GFI, and PDB link|2POO.

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|37288-11-2."

Gene Ontology (GO) codes