Identification
HMDB Protein ID CDBP02321
Secondary Accession Numbers Not Available
Name Phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase 2
Description Not Available
Synonyms
  1. INPPL-1
  2. Inositol polyphosphate phosphatase-like protein 1
  3. Protein 51C
  4. SH2 domain-containing inositol phosphatase 2
  5. SH2 domain-containing inositol-5'-phosphatase 2
  6. SHIP-2
  7. SH2 domain-containing inositol 5'-phosphatase 2
Gene Name INPPL1
Protein Type Enzyme
Biological Properties
General Function Involved in inositol or phosphatidylinositol phosphatase activity
Specific 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. Plays a central role in regulation of PI3K-dependent insulin signaling, although the precise molecular mechanisms and signaling pathways remain unclear. While overexpression reduces both insulin-stimulated MAP kinase and Akt activation, its absence does not affect insulin signaling or GLUT4 trafficking. Confers resistance to dietary obesity. May act by regulating AKT2, but not AKT1, phosphorylation at the plasma membrane. Part of a signaling pathway that regulates actin cytoskeleton remodeling. Required for the maintenance and dynamic remodeling of actin structures as well as in endocytosis, having a major impact on ligand-induced EGFR internalization and degradation. Participates in regulation of cortical and submembraneous actin by hydrolyzing PtdIns(3,4,5)P3 thereby regulating membrane ruffling. Regulates cell adhesion and cell spreading. Required for HGF-mediated lamellipodium formation, cell scattering and spreading. Acts as a negative regulator of EPHA2 receptor endocytosis by inhibiting via PI3K-dependent Rac1 activation. Acts as a regulator of neuritogenesis by regulating PtdIns(3,4,5)P3 level and is required to form an initial protrusive pattern, and later, maintain proper neurite outgrowth. Acts as a negative regulator of the FC-gamma-RIIA receptor (FCGR2A). Mediates signaling from the FC-gamma-RIIB receptor (FCGR2B), playing a central role in terminating signal transduction from activating immune/hematopoietic cell receptor systems. Involved in EGF signaling pathway. Upon stimulation by EGF, it is recruited by EGFR and dephosphorylates PtdIns(3,4,5)P3. Plays a negative role in regulating the PI3K-PKB pathway, possibly by inhibiting PKB activity. Down-regulates Fc-gamma-R-mediated phagocytosis in macrophages independently of INPP5D/SHIP1. In macrophages, down-regulates NF-kappa-B-dependent gene transcription by regulating macrophage colony-stimulating factor (M-CSF)-induced signaling. May also hydrolyze PtdIns(1,3,4,5)P4, and could thus affect the levels of the higher inositol polyphosphates like InsP6.
GO Classification
Biological Process
negative regulation of MAP kinase activity
negative regulation of gene expression
phosphatidylinositol biosynthetic process
post-embryonic development
negative regulation of insulin receptor signaling pathway
cell adhesion
negative regulation of DNA replication
response to insulin stimulus
response to drug
glucose metabolic process
phosphatidylinositol phosphorylation
negative regulation of platelet-derived growth factor receptor signaling pathway
brain development
negative regulation of neuron projection development
inositol trisphosphate metabolic process
negative regulation of cell proliferation
small molecule metabolic process
negative regulation of insulin-like growth factor receptor signaling pathway
actin filament organization
endocytosis
Cellular Component
cytosol
plasma membrane
Golgi apparatus
lamellipodium
actin cortical patch
Function
hydrolase activity, acting on ester bonds
binding
catalytic activity
hydrolase activity
phosphoric ester hydrolase activity
phosphatase activity
protein binding
inositol or phosphatidylinositol phosphatase activity
Molecular Function
hydrolase activity
phosphatidylinositol-3,4,5-trisphosphate binding
Cellular Location
  1. Cytoplasm
  2. Cytoplasm
  3. Peripheral membrane protein
  4. Membrane
  5. cytoskeleton
  6. cytosol
  7. actin patch
Pathways
Gene Properties
Chromosome Location 11
Locus 11q13
SNPs INPPL1
Gene Sequence
>3777 bp
ATGGCCTCGGCCTGCGGGGCGCCGGGCCCGGGGGGCGCCCTGGGCAGCCAGGCCCCCTCC
TGGTACCACCGCGACCTGAGCCGGGCGGCCGCGGAGGAGCTGCTGGCCCGGGCGGGCCGC
GATGGCAGCTTCCTGGTCCGAGACAGCGAGAGCGTGGCGGGGGCCTTCGCGCTCTGCGTC
CTGTATCAGAAGCATGTGCACACGTATCGCATTCTGCCTGATGGAGAAGATTTCTTGGCT
GTGCAGACCTCGCAGGGTGTGCCTGTGCGCCGCTTCCAGACCCTGGGTGAGCTCATCGGC
CTGTACGCCCAGCCCAACCAGGGCCTTGTGTGCGCCCTGCTTCTTCCTGTAGAGGGTGAG
CGAGAGCCGGACCCACCGGATGACCGGGATGCCTCAGATGGGGAGGATGAGAAGCCCCCG
CTGCCCCCGCGCTCTGGCTCCACCAGCATTTCTGCCCCCACTGGGCCCAGCAGTCCCCTG
CCAGCTCCTGAGACTCCCACAGCTCCAGCTGCTGAGAGTGCTCCCAATGGGCTGAGCACC
GTCTCGCACGACTACCTGAAAGGCAGCTATGGGCTGGACCTGGAAGCTGTGAGGGGTGGA
GCCAGCCACCTGCCCCACCTCACCCGTACCCTCGCTACCTCATGCCGGAGGCTGCACAGT
GAGGTGGACAAGGTCCTGTCAGGCCTGGAGATCCTGTCCAAGGTGTTTGACCAGCAGAGC
TCGCCCATGGTGACCCGCCTTTTGCAGCAGCAGAACCTGCCACAGACAGGGGAGCAGGAA
CTAGAGAGCCTGGTGCTGAAGCTGTCAGTGCTAAAGGACTTCCTGTCAGGCATCCAGAAG
AAGGCCCTGAAGGCCCTACAGGACATGAGCTCCACAGCACCCCCAGCTCCGCAGCCATCC
ACACGTAAGGCCAAGACCATCCCCGTGCAGGCCTTTGAGGTGAAGCTAGATGTGACCCTG
GGTGACCTGACCAAGATTGGGAAGTCACAGAAGTTCACGCTGAGCGTGGATGTGGAGGGT
GGGCGGCTGGTGCTGCTGCGGAGACAGCGGGACTCCCAGGAGGACTGGACCACCTTCACG
CACGACCGCATCCGCCAGCTCATTAAGTCCCAGCGTGTCCAGAACAAGCTGGGTGTTGTG
TTTGAGAAGGAGAAGGACCGGACTCAGCGCAAGGACTTCATCTTTGTCAGTGCCCGGAAG
CGGGAGGCCTTCTGCCAGCTGTTGCAGCTCATGAAGAACAAGCACTCCAAGCAGGACGAG
CCCGACATGATCTCAGTCTTCATAGGCACCTGGAACATGGGAAGTGTACCACCTCCAAAA
AACGTGACATCCTGGTTCACATCGAAGGGTCTGGGGAAGACCCTGGACGAGGTCACAGTG
ACCATACCCCATGACATCTATGTCTTTGGGACCCAGGAGAACTCAGTGGGCGACCGCGAG
TGGCTGGACCTACTGCGCGGGGGCCTCAAGGAGCTTACGGATCTGGATTACCGCCCGATT
GCCATGCAATCACTGTGGAATATCAAGGTGGCAGTGCTGGTCAAGCCAGAGCACGAGAAC
CGTATCAGCCATGTCAGTACGTCCAGTGTGAAGACTGGCATCGCCAACACCCTGGGGAAC
AAGGGGGCTGTGGGCGTCTCCTTCATGTTTAATGGCACCTCATTTGGCTTTGTGAATTGT
CACCTCACCTCGGGAAATGAGAAGACGGCTCGGAGGAACCAAAACTACTTGGACATCCTG
CGGCTGCTCTCGCTGGGCGACCGGCAGCTCAATGCCTTTGACATCTCTCTGCGTTTCACA
CACCTCTTCTGGTTTGGGGACCTCAACTACCGCCTGGACATGGATATCCAGGAGATCCTG
AACTACATCAGCAGGAAAGAGTTTGAGCCCCTCCTCAGGGTGGACCAGCTCAACCTGGAG
CGGGAGAAGCACAAGGTCTTCCTTCGATTCAGTGAGGAGGAGATCTCCTTCCCACCCACC
TACCGCTATGAGCGGGGTTCCCGGGACACATATGCCTGGCACAAGCAGAAGCCAACTGGG
GTCCGGACCAATGTGCCCTCATGGTGTGACCGGATTCTGTGGAAATCCTACCCTGAAACT
CACATCATCTGCAATTCTTATGGTTGCACTGATGACATCGTCACCAGCGACCATTCCCCC
GTGTTTGGGACATTTGAGGTTGGAGTTACCTCCCAGTTCATCTCCAAGAAAGGGCTCTCA
AAGACTTCAGACCAGGCCTACATTGAGTTTGAGAGCATCGAGGCCATTGTGAAGACAGCC
AGCCGCACCAAGTTCTTCATCGAGTTCTACTCTACCTGCCTGGAGGAATACAAGAAGAGC
TTTGAGAATGATGCCCAGAGCAGTGACAACATCAACTTCCTCAAAGTGCAGTGGTCTTCA
CGCCAGCTGCCCACGCTCAAACCAATTCTGGCTGATATCGAGTACCTGCAGGACCAGCAC
CTCCTGCTCACAGTCAAGTCCATGGATGGCTATGAATCCTATGGGGAGTGTGTGGTTGCA
CTCAAATCCATGATCGGCAGCACGGCCCAACAGTTCCTGACCTTCCTATCCCACCGTGGC
GAGGAGACAGGCAATATCAGAGGCTCCATGAAGGTGCGGGTGCCCACGGAGCGCCTGGGC
ACCCGTGAGCGGCTCTACGAGTGGATCAGCATTGATAAGGATGAGGCAGGAGCAAAGAGC
AAAGCCCCCTCTGTGTCCCGAGGGAGCCAGGAGCCCAGGTCAGGGAGCCGCAAGCCAGCC
TTCACAGAGGCCTCCTGCCCGCTCTCCAGGTTATTTGAAGAACCAGAGAAACCGCCACCA
ACGGGGAGGCCCCCAGCCCCACCCCGAGCAGCTCCCCGGGAGGAGCCCTTGACCCCCAGG
TTGAAGCCAGAGGGAGCTCCTGAACCAGAAGGGGTGGCGGCCCCCCCACCCAAGAACAGC
TTCAATAACCCTGCCTACTACGTCCTTGAAGGGGTCCCGCACCAGCTGCTGCCCCCGGAG
CCACCCTCGCCTGCCAGGGCCCCTGTCCCATCTGCCACCAAGAACAAAGTGGCCATTACA
GTGCCTGCTCCACAGCTTGGGCACCACCGGCACCCTCGTGTGGGAGAGGGGAGTTCTTCA
GATGAGGAGTCTGGAGGCACACTGCCCCCTCCAGACTTTCCACCTCCACCACTGCCGGAC
TCAGCCATCTTCCTGCCCCCCAGCCTGGATCCTTTACCAGGGCCAGTGGTCCGGGGCCGT
GGTGGGGCTGAGGCCCGTGGCCCACCACCTCCCAAGGCCCATCCAAGGCCTCCACTGCCC
CCAGGCCCCTCACCAGCCAGCACTTTCCTGGGGGAAGTGGCCAGTGGGGATGACCGGTCC
TGCTCGGTGCTGCAGATGGCCAAGACGCTGAGCGAGGTGGACTATGCCCCTGCTGGGCCT
GCACGCTCAGCGCTCCTCCCAGGCCCCCTGGAGCTGCAGCCCCCCCGGGGACTGCCCTCG
GACTATGGCCGGCCCCTCAGCTTCCCTCCACCCCGCATCCGGGAGAGCATCCAGGAAGAC
CTGGCAGAGGAGGCTCCGTGCCTGCAGGGCGGGCGGGCCAGCGGGCTGGGCGAGGCAGGC
ATGAGTGCCTGGCTGCGGGCCATCGGCTTGGAGCGCTATGAGGAGGGCCTGGTGCATAAT
GGCTGGGACGACCTGGAGTTTCTCAGTGACATCACCGAGGAGGACTTGGAGGAGGCTGGG
GTGCAGGACCCGGCTCACAAGCGCCTCCTTCTGGACACCCTGCAGCTCAGCAAGTGA
Protein Properties
Number of Residues 1258
Molecular Weight 138597.495
Theoretical pI 6.53
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase 2
MASACGAPGPGGALGSQAPSWYHRDLSRAAAEELLARAGRDGSFLVRDSESVAGAFALCV
LYQKHVHTYRILPDGEDFLAVQTSQGVPVRRFQTLGELIGLYAQPNQGLVCALLLPVEGE
REPDPPDDRDASDGEDEKPPLPPRSGSTSISAPTGPSSPLPAPETPTAPAAESAPNGLST
VSHDYLKGSYGLDLEAVRGGASHLPHLTRTLATSCRRLHSEVDKVLSGLEILSKVFDQQS
SPMVTRLLQQQNLPQTGEQELESLVLKLSVLKDFLSGIQKKALKALQDMSSTAPPAPQPS
TRKAKTIPVQAFEVKLDVTLGDLTKIGKSQKFTLSVDVEGGRLVLLRRQRDSQEDWTTFT
HDRIRQLIKSQRVQNKLGVVFEKEKDRTQRKDFIFVSARKREAFCQLLQLMKNKHSKQDE
PDMISVFIGTWNMGSVPPPKNVTSWFTSKGLGKTLDEVTVTIPHDIYVFGTQENSVGDRE
WLDLLRGGLKELTDLDYRPIAMQSLWNIKVAVLVKPEHENRISHVSTSSVKTGIANTLGN
KGAVGVSFMFNGTSFGFVNCHLTSGNEKTARRNQNYLDILRLLSLGDRQLNAFDISLRFT
HLFWFGDLNYRLDMDIQEILNYISRKEFEPLLRVDQLNLEREKHKVFLRFSEEEISFPPT
YRYERGSRDTYAWHKQKPTGVRTNVPSWCDRILWKSYPETHIICNSYGCTDDIVTSDHSP
VFGTFEVGVTSQFISKKGLSKTSDQAYIEFESIEAIVKTASRTKFFIEFYSTCLEEYKKS
FENDAQSSDNINFLKVQWSSRQLPTLKPILADIEYLQDQHLLLTVKSMDGYESYGECVVA
LKSMIGSTAQQFLTFLSHRGEETGNIRGSMKVRVPTERLGTRERLYEWISIDKDEAGAKS
KAPSVSRGSQEPRSGSRKPAFTEASCPLSRLFEEPEKPPPTGRPPAPPRAAPREEPLTPR
LKPEGAPEPEGVAAPPPKNSFNNPAYYVLEGVPHQLLPPEPPSPARAPVPSATKNKVAIT
VPAPQLGHHRHPRVGEGSSSDEESGGTLPPPDFPPPPLPDSAIFLPPSLDPLPGPVVRGR
GGAEARGPPPPKAHPRPPLPPGPSPASTFLGEVASGDDRSCSVLQMAKTLSEVDYAPAGP
ARSALLPGPLELQPPRGLPSDYGRPLSFPPPRIRESIQEDLAEEAPCLQGGRASGLGEAG
MSAWLRAIGLERYEEGLVHNGWDDLEFLSDITEEDLEEAGVQDPAHKRLLLDTLQLSK
GenBank ID Protein 222136583
UniProtKB/Swiss-Prot ID O15357
UniProtKB/Swiss-Prot Entry Name SHIP2_HUMAN
PDB IDs
GenBank Gene ID NM_001567.3
GeneCard ID INPPL1
GenAtlas ID INPPL1
HGNC ID HGNC:6080
References
General References Not Available