INPP4B
INPP4B encodes the inositol polyphosphate 4-phosphatase type II, one of the enzymes involved in phosphatidylinositol signaling pathways. This enzyme removes the phosphate group at position 4 of the inositol ring from inositol 3,4-bisphosphate. There is limited data to suggest that the human type II enzyme is subject to alternative splicing, as has been established for the type I enzyme. [provided by RefSeq, Jul 2008]
Full Name
Inositol Polyphosphate-4-Phosphatase Type II B
Function
Catalyzes the hydrolysis of the 4-position phosphate of phosphatidylinositol 3,4-bisphosphate, inositol 1,3,4-trisphosphate and inositol 3,4-trisphosphate (PubMed:24070612, PubMed:24591580).
Plays a role in the late stages of macropinocytosis by dephosphorylating phosphatidylinositol 3,4-bisphosphate in membrane ruffles (PubMed:24591580).
The lipid phosphatase activity is critical for tumor suppressor function. Antagonizes the PI3K-AKT/PKB signaling pathway by dephosphorylating phosphoinositides and thereby modulating cell cycle progression and cell survival (PubMed:19647222, PubMed:24070612).
Plays a role in the late stages of macropinocytosis by dephosphorylating phosphatidylinositol 3,4-bisphosphate in membrane ruffles (PubMed:24591580).
The lipid phosphatase activity is critical for tumor suppressor function. Antagonizes the PI3K-AKT/PKB signaling pathway by dephosphorylating phosphoinositides and thereby modulating cell cycle progression and cell survival (PubMed:19647222, PubMed:24070612).
Biological Process
Inositol phosphate dephosphorylationIEA:Ensembl
Inositol phosphate metabolic processTAS:Reactome
Phosphatidylinositol biosynthetic processTAS:Reactome
Phosphatidylinositol dephosphorylationIEA:Ensembl
Signal transductionManual Assertion Based On ExperimentTAS:ProtInc
Inositol phosphate metabolic processTAS:Reactome
Phosphatidylinositol biosynthetic processTAS:Reactome
Phosphatidylinositol dephosphorylationIEA:Ensembl
Signal transductionManual Assertion Based On ExperimentTAS:ProtInc
Cellular Location
Cytoplasm; Cytosol
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Anti-INPP4B antibodies
+ Filters

Target: INPP4B
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: D19B9
Application*: WB, IP
Target: INPP4B
Host: Mouse
Antibody Isotype: IgG2b, κ
Specificity: Human
Clone: 3F2
Application*: WB, E
Target: INPP4B
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: CBYJT-1400
Application*: WB, IP, E
Target: INPP4B
Host: Rabbit
Specificity: Human
Clone: CBYY-I1697
Application*: WB, IP, P
Target: INPP4B
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: CBYY-I1648
Application*: WB, IP
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(P): Predicted
* Abbreviations
- AActivation
- AGAgonist
- APApoptosis
- BBlocking
- BABioassay
- BIBioimaging
- CImmunohistochemistry-Frozen Sections
- CIChromatin Immunoprecipitation
- CTCytotoxicity
- CSCostimulation
- DDepletion
- DBDot Blot
- EELISA
- ECELISA(Cap)
- EDELISA(Det)
- ESELISpot
- EMElectron Microscopy
- FFlow Cytometry
- FNFunction Assay
- GSGel Supershift
- IInhibition
- IAEnzyme Immunoassay
- ICImmunocytochemistry
- IDImmunodiffusion
- IEImmunoelectrophoresis
- IFImmunofluorescence
- IHImmunohistochemistry
- IMImmunomicroscopy
- IOImmunoassay
- IPImmunoprecipitation
- ISIntracellular Staining for Flow Cytometry
- LALuminex Assay
- LFLateral Flow Immunoassay
- MMicroarray
- MCMass Cytometry/CyTOF
- MDMeDIP
- MSElectrophoretic Mobility Shift Assay
- NNeutralization
- PImmunohistologyp-Paraffin Sections
- PAPeptide Array
- PEPeptide ELISA
- PLProximity Ligation Assay
- RRadioimmunoassay
- SStimulation
- SESandwich ELISA
- SHIn situ hybridization
- TCTissue Culture
- WBWestern Blot

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