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Identification
HMDB Protein ID HMDBP03980
Secondary Accession Numbers
  • 9568
Name Phosphatidylinositol 3-kinase regulatory subunit beta
Synonyms
  1. PI3-kinase regulatory subunit beta
  2. PI3-kinase subunit p85-beta
  3. PI3K regulatory subunit beta
  4. Phosphatidylinositol 3-kinase 85 kDa regulatory subunit beta
  5. PtdIns-3-kinase regulatory subunit beta
  6. PtdIns-3-kinase regulatory subunit p85-beta
Gene Name PIK3R2
Protein Type Enzyme
Biological Properties
General Function Involved in phosphoinositide 3-kinase regulator activity
Specific Function 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
Pathways Not Available
Reactions Not Available
GO Classification
Component
cell part
macromolecular complex
protein complex
intracellular
phosphoinositide 3-kinase complex
Function
binding
phosphoinositide 3-kinase regulator activity
enzyme regulator activity
protein binding
kinase regulator activity
Process
biological regulation
regulation of biological process
regulation of cellular process
signal transduction
Cellular Location Not Available
Gene Properties
Chromosome Location Chromosome:1
Locus 19q13.2-q13.4
SNPs PIK3R2
Gene Sequence
>2187 bp
ATGGCGGGCCCTGAGGGCTTCCAGTACCGCGCTCTGTACCCGTTCCGCCGGGAGCGGCCG
GAGGACCTGGAGCTGCTGCCCGGCGACGTGCTGGTAGTGAGCCGGGCGGCCTTGCAGGCG
CTGGGCGTGGCCGAGGGTGGCGAGCGCTGCCCACAGAGCGTGGGCTGGATGCCCGGCCTC
AACGAGCGCACACGGCAGCGAGGTGACTTCCCTGGCACCTATGTGGAGTTCCTGGGGCCC
GTGGCCCTGGCCCGGCCCGGCCCTCGCCCACGGGGCCCCCGCCCACTGCCCGCCAGGCCC
CGTGATGGGGCCCCTGAGCCAGGCCTCACACTCCCCGACTTGCCCGAGCAGTTCTCCCCA
CCTGATGTGGCTCCCCCTCTTCTGGTGAAGCTTGTGGAGGCCATTGAAAGGACAGGGCTG
GACAGCGAATCTCACTACCGCCCGGAGCTGCCCGCACCGCGTACAGACTGGTCCCTGAGC
GACGTGGATCAGTGGGACACGGCAGCCCTGGCTGACGGCATTAAGAGCTTCCTGCTGGCA
CTGCCCGCGCCGCTCGTGACCCCCGAGGCCTCGGCCGAGGCGCGCCGGGCCCTGCGGGAG
GCCGCGGGGCCCGTGGGGCCGGCGCTGGAGCCACCGACGCTGCCGCTGCACCGCGCGCTC
ACGCTGCGCTTCCTGCTCCAGCACCTGGGCCGCGTGGCCCGCCGCGCCCCGGCCCTGGGT
CCCGCGGTCCGGGCCCTGGGCGCCACCTTTGGGCCGCTGCTCCTGCGCGCGCCGCCGCCG
CCGTCCTCGCCGCCGCCAGGGGGCGCTCCCGACGGGAGTGAGCCCAGCCCTGACTTCCCG
GCGCTGCTGGTGGAGAAGCTGCTTCAGGAACACTTGGAAGAGCAGGAGGTTGCGCCCCCA
GCGCTGCCGCCTAAACCCCCCAAGGCAAAGCCGGCCCCCACAGTCCTGGCCAATGGAGGG
AGCCCACCCTCCCTGCAGGATGCTGAGTGGTACTGGGGGGACATTTCAAGGGAGGAGGTG
AACGAGAAACTCCGGGACACTCCCGATGGCACCTTCCTAGTCCGAGATGCTTCTAGCAAG
ATCCAGGGCGAGTACACGCTGACCCTCAGGAAAGGCGGGAACAATAAGCTGATCAAGGTC
TTCCACCGAGATGGGCACTATGGCTTCTCAGAGCCACTCACCTTCTGCTCCGTTGTGGAC
CTCATCAATCACTACCGCCACGAGTCTCTGGCCCAGTACAATGCCAAGCTGGACACACGG
CTCCTCTACCCTGTGTCCAAATACCAGCAGGACCAGATTGTCAAGGAGGACAGCGTGGAG
GCAGTGGGCGCCCAGCTTAAGGTCTATCACCAGCAGTACCAGGACAAGAGCCGCGAGTAT
GACCAGCTTTATGAAGAGTACACACGGACCTCCCAGGAGCTGCAGATGAAGCGTACTGCA
ATTGAGGCCTTCAATGAGACTATCAAGATCTTTGAAGAGCAGGGCCAGACTCAAGAGAAA
TGCAGCAAGGAATACCTGGAGCGCTTCCGGCGTGAGGGCAACGAGAAAGAGATGCAAAGG
ATCCTGCTGAACTCCGAGCGGCTCAAGTCCCGCATTGCCGAGATCCATGAGAGCCGCACG
AAGCTGGAGCAGCAGCTGCGGGCCCAGGCCTCGGACAACAGAGAGATCGACAAGCGCATG
AACAGCCTCAAGCCGGACCTCATGCAGCTGCGCAAGATCCGAGACCAGTACCTCGTGTGG
CTCACCCAGAAAGGCGCCCGGCAGAAGAAAATCAACGAGTGGCTGGGGATTAAAAATGAG
ACTGAGGACCAGTACGCACTCATGGAGGACGAGGACGATCTCCCGCACCACGAGGAACGC
ACTTGGTACGTGGGCAAGATCAACCGCACGCAGGCAGAGGAGATGCTGAGCGGCAAGCGG
GATGGCACCTTCCTCATCCGCGAGAGCAGCCAGCGGGGCTGCTACGCCTGCTCCGTGGTA
GTGGACGGCGACACCAAGCACTGCGTCATCTACCGCACGGCCACCGGCTTCGGCTTCGCG
GAGCCCTACAACCTGTACGGGTCGCTGAAGGAGCTGGTGCTGCACTACCAGCACGCCTCG
CTGGTGCAGCACAACGACGCGCTCACTGTCACCCTGGCGCACCCAGTGCGCGCCCCGGGC
CCCGGCCCGCCGCCTGCCGCCCGCTGA
Protein Properties
Number of Residues 728
Molecular Weight 81623.7
Theoretical pI 6.48
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • None
Protein Sequence
>Phosphatidylinositol 3-kinase regulatory subunit beta
MAGPEGFQYRALYPFRRERPEDLELLPGDVLVVSRAALQALGVAEGGERCPQSVGWMPGL
NERTRQRGDFPGTYVEFLGPVALARPGPRPRGPRPLPARPRDGAPEPGLTLPDLPEQFSP
PDVAPPLLVKLVEAIERTGLDSESHYRPELPAPRTDWSLSDVDQWDTAALADGIKSFLLA
LPAPLVTPEASAEARRALREAAGPVGPALEPPTLPLHRALTLRFLLQHLGRVARRAPALG
PAVRALGATFGPLLLRAPPPPSSPPPGGAPDGSEPSPDFPALLVEKLLQEHLEEQEVAPP
ALPPKPPKAKPAPTVLANGGSPPSLQDAEWYWGDISREEVNEKLRDTPDGTFLVRDASSK
IQGEYTLTLRKGGNNKLIKVFHRDGHYGFSEPLTFCSVVDLINHYRHESLAQYNAKLDTR
LLYPVSKYQQDQIVKEDSVEAVGAQLKVYHQQYQDKSREYDQLYEEYTRTSQELQMKRTA
IEAFNETIKIFEEQGQTQEKCSKEYLERFRREGNEKEMQRILLNSERLKSRIAEIHESRT
KLEQQLRAQASDNREIDKRMNSLKPDLMQLRKIRDQYLVWLTQKGARQKKINEWLGIKNE
TEDQYALMEDEDDLPHHEERTWYVGKINRTQAEEMLSGKRDGTFLIRESSQRGCYACSVV
VDGDTKHCVIYRTATGFGFAEPYNLYGSLKELVLHYQHASLVQHNDALTVTLAHPVRAPG
PGPPPAAR
GenBank ID Protein 2160048
UniProtKB/Swiss-Prot ID O00459
UniProtKB/Swiss-Prot Entry Name P85B_HUMAN
PDB IDs Not Available
GenBank Gene ID X80907
GeneCard ID PIK3R2
GenAtlas ID PIK3R2
HGNC ID HGNC:8980
References
General References
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  7. Zhang Y, Wolf-Yadlin A, Ross PL, Pappin DJ, Rush J, Lauffenburger DA, White FM: Time-resolved mass spectrometry of tyrosine phosphorylation sites in the epidermal growth factor receptor signaling network reveals dynamic modules. Mol Cell Proteomics. 2005 Sep;4(9):1240-50. Epub 2005 Jun 11. [PubMed:15951569 ]
  8. Heibeck TH, Ding SJ, Opresko LK, Zhao R, Schepmoes AA, Yang F, Tolmachev AV, Monroe ME, Camp DG 2nd, Smith RD, Wiley HS, Qian WJ: An extensive survey of tyrosine phosphorylation revealing new sites in human mammary epithelial cells. J Proteome Res. 2009 Aug;8(8):3852-61. doi: 10.1021/pr900044c. [PubMed:19534553 ]
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