IUPAC 名称
{[(3s,5S)-2,4-dihydroxy-3-({hydroxy[(2R)-2-(icosa-8,11,14-trienoyloxy)-3-(octadec-9-enoyloxy)propoxy]phosphoryl}oxy)-5,6-bis(phosphonooxy)cyclohexyl]oxy}phosphonic acid
描述
PIP3(18:1(9Z)/20:3(8Z,11Z,14Z)) is a phosphatidylinositol trisphosphate. Phosphatidylinositol trisphosphates are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to a trisphosphorylated inositol (hexahydroxycyclohexane). Phosphatidylinositol trisphosphates are generated from phosphatidylinositols, which are phosphorylated by a number of different kinases that place the phosphate moiety on positions 4 and 5 of the inositol ring, although position 3 can also be phosphorylated. Phosphatidylinositols trisphosphates can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 18 and 20 carbons are the most common. PIP3(18:1(9Z)/20:3(8Z,11Z,14Z)), in particular, consists of one chain of oleic acid at the C-1 position and one chain of homo-g-linolenic acid at the C-2 position. The oleic acid moiety is derived from vegetable oils, especially olive and canola oil, while the homo-g-linolenic acid moiety is derived from fish oils, liver and kidney. The most important phosphatidylinositol trisphosphate in both quantitative and biological terms is phosphatidylinositol 3,4,5-triphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signalling molecules, via the action of phospholipase C enzymes. Phosphatidylinositols phosphates are usually present at low levels only in tissues, typically at about 1 to 3% of the concentration of phosphatidylinositol. [HMDB]
InChI标识符
InChI=1S/C47H86O22P4/c1-3-5-7-9-11-13-15-17-19-20-22-24-26-28-30-32-34-36-41(49)65-39(37-63-40(48)35-33-31-29-27-25-23-21-18-16-14-12-10-8-6-4-2)38-64-73(61,62)69-44-42(50)45(66-70(52,53)54)47(68-72(58,59)60)46(43(44)51)67-71(55,56)57/h11,13,17-19,21-22,24,39,42-47,50-51H,3-10,12,14-16,20,23,25-38H2,1-2H3,(H,61,62)(H2,52,53,54)(H2,55,56,57)(H2,58,59,60)/t39-,42?,43?,44-,45+,46?,47?/m1/s1