Recombinant Human Phosphatidylinositol 3-kinase regulatory subunit gamma (PIK3R3)

Uniprot Id

Q92569

Target Species

Human

Target Name

PIK3R3

Target Full Name

Phosphatidylinositol 3-kinase regulatory subunit gamma

Target Function

Binds to activated (phosphorylated) protein-tyrosine kinases through its SH2 domain and regulates their kinase activity. During insulin stimulation, it also binds to IRS-1.

Target Protein Families

PI3K p85 subunit family

Target Tissue Specificity

Highest levels in brain and testis. Lower levels in adipose tissue, kidney, heart, lung and skeletal muscle.

Target Synonyms

DKFZp686P05226; FLJ41892; OTTHUMP00000009783; OTTHUMP00000009786; p55; p55 gamma; P55G_HUMAN; p55PIK; Phosphatidylinositol 3 kinase regulatory subunit gamma; Phosphatidylinositol 3 kinase regulatory subunit polypeptide 3; Phosphatidylinositol 3 kinase, regulatory subunit, polypeptide 3 (p55, gamma); Phosphatidylinositol 3-kinase 55 kDa regulatory subunit gamma; Phosphatidylinositol 3-kinase regulatory subunit gamma; Phosphoinositide 3 kinase regulatory subunit 3 (gamma); Phosphoinositide 3 kinase regulatory subunit 3; Phosphoinositide 3 kinase regulatory subunit polypeptide 3; Phosphoinositide 3 kinase, regulatory subunit 3 (p55, gamma); Phosphoinositide 3 kinase, regulatory subunit, polypeptide 3 (p55, gamma); PI3 kinase p85 subunit gamma; PI3-kinase regulatory subunit gamma; PI3-kinase subunit p55-gamma; PI3K regulatory subunit gamma; Pik3r3; PtdIns 3 kinase p85 gamma; PtdIns-3-kinase regulatory subunit gamma; PtdIns-3-kinase regulatory subunit p55-gamma

Target Background

Phosphatidylinositol 3-kinase (PI3K) phosphorylates phosphatidylinositol and similar compounds, which then serve as second messengers in growth signaling pathways. PI3K is composed of a catalytic and a regulatory subunit. The protein encoded by this gene represents a regulatory subunit of PI3K. The encoded protein contains two SH2 domains through which it binds activated protein tyrosine kinases to regulate their activity.