Multiple inositol-polyphosphate phosphatase

This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name is 1D-myo-inositol-hexakisphosphate 5-phosphohydrolase. Other names in common use include inositol (1,3,4,5)-tetrakisphosphate 3-phosphatase, inositol 1,3,4,5-tetrakisphosphate 3-phosphomonoesterase, inositol 1,3,4,5-tetrakisphosphate-5-phosphomonoesterase, inositol tetrakisphosphate phosphomonoesterase, inositol-1,3,4,5-tetrakisphosphate 3-phosphatase, and MIPP. This enzyme participates in inositol phosphate metabolism.

References

Cullen PJ, Irvine RF, Drobak BK, Dawson AP (1989). "Inositol 1,3,4,5-tetrakisphosphate causes release of Ca from permeabilized mouse lymphoma L1210 cells by its conversion into inositol 1,4,5-trisphosphate". Biochem. J. 259 (3): 931–3. PMC 1138610. PMID 2786415.
Craxton A, Caffrey JJ, Burkhart W, Safrany ST, Shears SB. "Molecular cloning and expression of a rat hepatic multiple inositol polyphosphate phosphatase". Biochem. J. 328: 75–81. PMC 1218889. PMID 9359836.

Anabolism

to diacylglycerol: Acyltransferase Phosphatidate phosphatase 2C
Choline kinase CHKA CHKB Choline-phosphate cytidylyltransferase
phosphatidylinositol glycan anchor biosynthesis: PIGA PIGB PIGC PIGF PIGG PIGH PIGK PIGL PIGM PIGN PIGO PIGP PIGQ PIGS PIGT PIGU PIGV PIGW PIGX PIGY PIGZ
cardiolipin: Tafazzin

Catabolism

Phospholipase C
Diacylglycerol kinase DGKA DGKB DGKD DGKE DGKG DGKH DGKI DGKK DGKQ DGKZ
Phosphoric monoester hydrolases Inositol-phosphate phosphatase

Hydrolase: esterases (EC 3.1)

3.1.1: Carboxylic
ester hydrolases

Lipase

Phospholipase
- A1
- A2
- B

3.1.2: Thioesterase

3.1.3: Phosphatase

3.1.4:
Phosphodiesterase

3.1.6: Sulfatase

Nuclease (includes
deoxyribonuclease
and ribonuclease)

3.1.11-16:
Exonuclease

Exodeoxyribonuclease	RecBCD
Exoribonuclease	Oligonucleotidase

3.1.21-31:
Endonuclease

Endodeoxyribonuclease	Deoxyribonuclease I Deoxyribonuclease II Deoxyribonuclease IV Restriction enzyme;see {{Restriction enzyme}} UvrABC endonuclease
Endoribonuclease	RNase III Drosha: Microprocessor complex Dicer: RNA-induced silencing complex RNase H 1 2A 2B 2C RNase P RNase A RNase Z RNase E 1 2 3 4/5 RNase T1
either deoxy- or ribo-	Nuclease S1 Mung bean nuclease Serratia marcescens nuclease Micrococcal nuclease

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

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