{{Short description|Class of enzymes}} {{infobox enzyme | Name = 4-phytase | EC_number = 3.1.3.26 | CAS_number = 9001-89-2 | GO_code = 0008707 | image = | width = | caption = }} The enzyme '''4-phytase''' ({{EC number|3.1.3.26}}) catalyzes the following reaction:<!--<ref name=":0">{{Cite web|url=https://enzyme.expasy.org/EC/3.1.3.26|title=ENZYME entry 3.1.3.26|website=enzyme.expasy.org|language=en-US|access-date=2018-04-09}}</ref> (No need to cite Expasy here: the link is in the Infobox)--><ref name="Mullaney_2003">{{cite journal | vauthors = Mullaney EJ, Ullah AH | title = The term phytase comprises several different classes of enzymes | journal = Biochemical and Biophysical Research Communications | volume = 312 | issue = 1 | pages = 179–84 | date = December 2003 | pmid = 14630039 | doi = 10.1016/j.bbrc.2003.09.176 | bibcode = 2003BBRC..312..179M }}</ref>
:''myo''-inositol hexakisphosphate + H<sub>2</sub>O <math>\rightleftharpoons</math> 1<small>D</small>-''myo''-inositol 1,2,3,5,6-pentakisphosphate + phosphate
''myo''-Inositol hexakisphosphate is also known as phytic acid.
These enzymes belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name of this enzyme class is '''''myo''-inositol-hexakisphosphate 4-phosphohydrolase'''. Other names in common use include '''6-phytase''' (name based on 1<small>L</small>-numbering system and not 1<small>D</small>-numbering) and '''phytate 6-phosphatase'''.
Enzymes of this type participate in inositol phosphate metabolism.
== See also ==
* 3-phytase (1-phytase) * 5-phytase * Protein tyrosine phosphatase
==References== {{reflist|1}} {{Esterases}} {{Enzymes}} {{Portal bar|Biology|border=no}}
Category:EC 3.1.3 Category:Enzymes of unknown structure
{{3.1-enzyme-stub}}