IUPAC 名称
{[(1S,2S,3S,4S,5R,6S)-3-({[2,2-bis(acetyloxy)ethoxy](hydroxy)phosphoryl}oxy)-2,4-dihydroxy-5,6-bis(phosphonooxy)cyclohexyl]oxy}phosphonic acid
描述
Phosphatidylinositol (3,4,5)-trisphosphate (PtdIns(3,4,5)P3) commonly abbreviated to PIP3 is the product of the class I phosphoinositide 3-kinases (PI 3-kinases) activity on phosphatidylinositol (4,5)-bisphosphate. PtdIns(3,4,5)P3 is dephophosphorylated by the phosphatase, PTEN on the 3 position and by SHIPs (SH2-containing inositol phosphatase) on the 5' position of the inositol ring.
The PH domain in a number of proteins binds to PtdIns(3,4,5)P3. Such proteins include Akt/PKB, PDK1, Btk1 and ARNO. The generation of PtdIns(3,4,5)P3 at the plasma membrane upon the activation of class I PI 3-kinases causes these proteins to translocate to the plasma membrane and accordingly affects their activity. The PH domain allows binding between PtdIns(3,4,5)P3 and G-protein coupled receptor kinases (GRKs). This enhances the binding of the GRK to the plasma membrane.
[HMDB]
InChI标识符
InChI=1S/C12H24O22P4/c1-4(13)29-6(30-5(2)14)3-28-38(26,27)34-9-7(15)10(31-35(17,18)19)12(33-37(23,24)25)11(8(9)16)32-36(20,21)22/h6-12,15-16H,3H2,1-2H3,(H,26,27)(H2,17,18,19)(H2,20,21,22)(H2,23,24,25)/t7-,8-,9-,10+,11-,12-/m0/s1