Identification
BMDB Protein ID BMDBP01230
Secondary Accession Numbers None
Name Phosphatidylinositol 3-kinase regulatory subunit beta
Synonyms Not Available
Gene Name PIK3R2
Protein Type Enzyme
Biological Properties
General Function Involved in phosphoinositide 3-kinase regulator activity
Specific Function Regulatory subunit of phosphoinositide-3-kinase (PI3K), a kinase that phosphorylates PtdIns(4,5)P2 (Phosphatidylinositol 4,5-bisphosphate) to generate phosphatidylinositol 3,4,5-trisphosphate (PIP3). PIP3 plays a key role by recruiting PH domain-containing proteins to the membrane, including AKT1 and PDPK1, activating signaling cascades involved in cell growth, survival, proliferation, motility and morphology. Binds to activated (phosphorylated) protein-tyrosine kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Indirectly regulates autophagy. Promotes nuclear translocation of XBP1 in a ER stress- and/or insulin-dependent manner during metabolic overloading in the liver and hence plays a role in glucose tolerance improvement (By similarity).
Pathways Not Available
Reactions Not Available
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 7
Locus Not Available
SNPs PIK3R2
Gene Sequence Not Available
Protein Properties
Number of Residues 724
Molecular Weight 81060.0
Theoretical pI 6.26
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions Not Available
Protein Sequence
>Phosphatidylinositol 3-kinase regulatory subunit beta
MAGPEGFQYRALYPFRRERPEDLELLPGDVLVVSRAALQALGVAEGNERCPQSVGWMPGL
NERTRQRGDFPGTYVEFLGPVALARPGPRPRGPRPLPARPRDGPPEPGLTLPDLPEQFSP
PDVAPPILVKLVEAIERTGLDSYRPEPPAVRTDWSLSDVEQWDAAALSDGVKGFLLALPA
PLVTPEAAAEAHRALREAAGPVGPALEPPTLPLHHALTLRFLLQHLGRVAGRAPAPGPAV
RALGATFGPLLLRAPPPPSPPPGGAPDGTEPTPDFPALLVEKLLQEHLEEQEVAPPALPP
KPPKTKPAPTGLANGGSPPSLQDAEWYWGDISREEVNEKLRDTPDGTFLVRDASSKIQGE
YTLTLRKGGNNKLIKVFHRDGHYGFSEPLTFCSVVDLITHYRHESLAQYNAKLDTRLLYP
VSKYQQDQIVKEDSVEAVGAQLKVYHQQYQDKSREYDQLYEEYTRTSQELQMKRTAIEAF
NETIKIFEEQGQTQEKCSKEYLERFRREGNEKEMQRILLNSERLKSRIAEIHESRTKLEQ
ELRAQASDNREIDKRMNSLKPDLMQLRKIRDQYLVWLTQKGARQKKINEWLGIKNETEDQ
YSLMEDEDDLPHHEERTWYVGKINRTQAEEMLSGKRDGTFLIRESSQRGCYACSVVVDGD
TKHCVIYRTATGFGFAEPYNLYGSLKELVLHYQHASLVQHNDALTVTLAHPVRAPGPGPP
PAAR
GenBank ID Protein AAA79510.1
UniProtKB/Swiss-Prot ID P23726
UniProtKB/Swiss-Prot Entry Name P85B_BOVIN
PDB IDs
GenBank Gene ID M61746
GeneCard ID PIK3R2
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available