NamePhosphatidylinositol 3-kinase regulatory subunit gamma
Synonyms
  • p55PIK
  • Phosphatidylinositol 3-kinase 55 kDa regulatory subunit gamma
  • PI3-kinase regulatory subunit gamma
  • PI3-kinase subunit p55-gamma
  • PtdIns-3-kinase regulatory subunit p55-gamma
Gene NamePIK3R3
OrganismHuman
Amino acid sequence
>lcl|BSEQ0037200|Phosphatidylinositol 3-kinase regulatory subunit gamma
MYNTVWSMDRDDADWREVMMPYSTELIFYIEMDPPALPPKPPKPMTSAVPNGMKDSSVSL
QDAEWYWGDISREEVNDKLRDMPDGTFLVRDASTKMQGDYTLTLRKGGNNKLIKIYHRDG
KYGFSDPLTFNSVVELINHYHHESLAQYNPKLDVKLMYPVSRYQQDQLVKEDNIDAVGKK
LQEYHSQYQEKSKEYDRLYEEYTRTSQEIQMKRTAIEAFNETIKIFEEQCHTQEQHSKEY
IERFRREGNEKEIERIMMNYDKLKSRLGEIHDSKMRLEQDLKNQALDNREIDKKMNSIKP
DLIQLRKIRDQHLVWLNHKGVRQKRLNVWLGIKNEDADENYFINEEDENLPHYDEKTWFV
EDINRVQAEDLLYGKPDGAFLIRESSKKGCYACSVVADGEVKHCVIYSTARGYGFAEPYN
LYSSLKELVLHYQQTSLVQHNDSLNVRLAYPVHAQMPSLCR
Number of residues461
Molecular Weight54448.0
Theoretical pI6.02
GO Classification
Functions
  • 1-phosphatidylinositol-3-kinase activity
  • 1-phosphatidylinositol-3-kinase regulator activity
Processes
  • small molecule metabolic process
  • insulin receptor signaling pathway
  • phospholipid metabolic process
  • positive regulation of glucose import in response to insulin stimulus
  • phosphatidylinositol phosphorylation
  • phosphatidylinositol biosynthetic process
  • phosphatidylinositol-3-phosphate biosynthetic process
  • regulation of phosphatidylinositol 3-kinase activity
Components
  • cytosol
  • phosphatidylinositol 3-kinase complex
General Function1-phosphatidylinositol-3-kinase regulator activity
Specific FunctionBinds to activated (phosphorylated) protein-tyrosine kinases through its SH2 domain and regulates their kinase activity. During insulin stimulation, it also binds to IRS-1.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein IDNot Available
UniProtKB IDQ92569
UniProtKB Entry NameP55G_HUMAN
Cellular LocationNot Available
Gene sequence
>lcl|BSEQ0011710|Phosphatidylinositol 3-kinase regulatory subunit gamma (PIK3R3)
ATGTACAATACGGTGTGGAGTATGGACCGCGATGACGCAGACTGGAGGGAGGTGATGATG
CCCTATTCGACAGAACTGATATTTTATATTGAAATGGATCCTCCAGCTCTTCCACCAAAG
CCACCTAAGCCAATGACTTCAGCAGTTCCAAATGGAATGAAGGACAGTTCTGTTTCTCTT
CAGGATGCAGAATGGTACTGGGGGGATATTTCAAGGGAGGAGGTAAATGACAAATTGCGG
GATATGCCAGATGGGACCTTCTTGGTCCGAGATGCCTCAACAAAAATGCAGGGAGATTAT
ACTTTGACTTTGCGGAAGGGAGGCAATAATAAGTTAATAAAGATCTATCACCGGGATGGT
AAATATGGCTTTTCTGATCCTCTGACATTTAATTCCGTGGTGGAGCTCATTAACCACTAT
CACCATGAATCTCTTGCTCAGTACAATCCCAAACTTGATGTGAAGCTGATGTACCCAGTG
TCCAGATACCAACAGGATCAGTTGGTAAAAGAAGATAATATTGATGCAGTAGGTAAAAAA
CTGCAAGAATACCACTCTCAGTATCAGGAGAAGAGTAAAGAGTATGATAGGCTGTATGAA
GAATATACTAGAACATCCCAGGAAATACAGATGAAGAGGACTGCAATAGAAGCTTTTAAT
GAAACAATTAAAATATTTGAAGAGCAGTGTCACACACAAGAACAACATAGCAAAGAATAT
ATTGAGCGATTTCGCAGAGAGGGGAATGAAAAGGAGATTGAACGAATTATGATGAATTAT
GATAAATTGAAATCACGTCTGGGTGAGATTCATGATAGCAAAATGCGTCTAGAGCAGGAT
TTGAAGAATCAAGCTTTGGACAACCGAGAAATAGATAAAAAAATGAATAGCATCAAACCT
GACCTGATCCAGCTGCGAAAGATCCGAGATCAACACCTTGTATGGCTCAATCACAAAGGA
GTGAGACAGAAACGCCTGAATGTCTGGCTGGGAATTAAGAATGAGGATGCTGATGAGAAC
TATTTTATCAATGAGGAAGATGAAAACCTGCCCCATTATGATGAGAAAACCTGGTTTGTT
GAGGATATCAATCGAGTACAAGCAGAGGACTTGCTTTATGGGAAACCTGATGGTGCATTC
TTAATTCGTGAGAGTAGCAAGAAAGGATGCTATGCTTGCTCTGTGGTGGCCGATGGGGAA
GTGAAGCACTGTGTGATCTACAGCACTGCTCGGGGCTATGGCTTTGCAGAGCCCTACAAC
CTGTACAGCTCTCTGAAGGAGCTAGTGCTCCATTACCAGCAGACATCCTTGGTTCAGCAC
AACGACTCCCTCAACGTCAGGCTTGCCTACCCTGTTCATGCACAGATGCCCTCGCTTTGC
AGATAA
GenBank Gene IDD88532
GeneCard IDNot Available
GenAtlas IDPIK3R3
HGNC IDHGNC:8981
Chromosome Location1
Locus1p34.1
References
  1. Dey BR, Furlanetto RW, Nissley SP: Cloning of human p55 gamma, a regulatory subunit of phosphatidylinositol 3-kinase, by a yeast two-hybrid library screen with the insulin-like growth factor-I receptor. Gene. 1998 Mar 16;209(1-2):175-83. 9524259
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