This gene encodes multiple inositol polyphosphate phosphatase, an enzyme that removes 3-phosphate from inositol phosphate substrates. It is the only enzyme known to hydrolzye inositol pentakisphosphate and inositol hexakisphosphate. This enzyme also converts 2,3 bisphosphoglycerate (2,3-BPG) to 2-phosphoglycerate, an activity formerly thought to be exclusive to 2,3-BPG synthase/2-phosphatase (BPGM) in the Rapoport-Luebering shunt of the glycolytic pathway.[provided by RefSeq, Sep 2009],catalytic activity:Myo-inositol hexakisphosphate + H(2)O = myo-inositol pentakisphosphate (mixed isomers) + phosphate.,disease:Defects in MINPP1 may be involved in follicular thyroid tumors development.,function:Acts as a phosphoinositide 5- and phosphoinositide 6-phosphatase and regulates cellular levels of inositol pentakisphosphate (InsP5) and inositol hexakisphosphate (InsP6) (By similarity). May play a role in bone development (endochondral ossification).,tissue specificity:Widely expressed with highest levels in kidney, liver and placenta.,
