The enzyme4-phytase (EC3.1.3.26)catalyzes the following reaction:[1]
myo-Inositol hexakisphosphate is also known asphytic acid.
These enzymes belongs to the family ofhydrolases, specifically those acting on phosphoricmonoester bonds. Thesystematic name of this enzyme class ismyo-inositol-hexakisphosphate 4-phosphohydrolase. Other names in common use include6-phytase (name based on 1L-numbering system and not 1D-numbering) andphytate 6-phosphatase.
Enzymes of this type participate ininositol phosphate metabolism.