Summary

Name INPP5D
Full Name Phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase 1
Synonyms Inositol polyphosphate-5-phosphatase of 145 kDa, SIP-145, SH2 domain-containing inositol 5'-phosphatase 1, SH2 domain-containing inositol phosphatase 1, SHIP-1, p150Ship, hp51CN | SHIP, SHIP1
Primary ID Q92835
Links - -
Type protein
Relations 9
Pathways Acute Myeloid Leukemia, miRNA in AML, B-cell activation
Function Phosphatidylinositol (PtdIns) phosphatase that specifically hydrolyzes the 5-phosphate of phosphatidylinositol-3,4,5-trisphosphate (PtdIns(3,4,5)P3) to produce PtdIns(3,4)P2, thereby negatively regulating the PI3K (phosphoinositide 3-kinase) pathways (PubMed:8723348, PubMed:10764818, PubMed:8769125). Able also to hydrolyzes the 5-phosphate of phosphatidylinositol-4,5-bisphosphate (PtdIns(4,5)P3) and inositol 1,3,4,5-tetrakisphosphate (PubMed:9108392, PubMed:10764818, PubMed:8769125). Acts as a negative regulator of B-cell antigen receptor signaling. Mediates signaling from the FC-gamma-RIIB receptor (FCGR2B), playing a central role in terminating signal transduction from activating immune/hematopoietic cell receptor systems. Acts as a negative regulator of myeloid cell proliferation/survival and chemotaxis, mast cell degranulation, immune cells homeostasis, integrin alpha-IIb/beta-3 signaling in platelets and JNK signaling in B-cells. Regulates proliferation of osteoclast precursors, macrophage programming, phagocytosis and activation and is required for endotoxin tolerance. Involved in the control of cell-cell junctions, CD32a signaling in neutrophils and modulation of EGF-induced phospholipase C activity (PubMed:16682172). Key regulator of neutrophil migration, by governing the formation of the leading edge and polarization required for chemotaxis. Modulates FCGR3/CD16-mediated cytotoxicity in NK cells. Mediates the activin/TGF-beta-induced apoptosis through its Smad-dependent expression.

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Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png binding INPP5D 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by repression img/direct_inhibition.png post transcriptional regulation INPP5D 0.4
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, miRNA in AML
+ up-regulates img/direct-activation.png binding INPP5D 0.683
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, miRNA in AML
+ up-regulates quantity img/direct-activation.png chemical modification phosphatidylinositol bisphosphate 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity img/direct_inhibition.png chemical modification PIP3 0.8
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, miRNA in AML, B-cell activation
+ down-regulates activity img/direct_inhibition.png binding TRAF6 0.337
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png dephosphorylation SYK 0.428
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation
+ up-regulates activity img/direct-activation.png binding INPP5D 0.564
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, B-cell activation
+ down-regulates activity img/direct_inhibition.png dephosphorylation PLCG2 0.317
Publications: 1 Organism: Homo Sapiens
Pathways:B-cell activation