IUPAC 名称
{[(4S,6S)-4-({[(2R)-2-(hexadeca-9,12-dienoyloxy)-3-(octadecanoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2,3,5-trihydroxy-6-(phosphonooxy)cyclohexyl]oxy}phosphonic acid
描述
PIP2(18:0/16:2(9Z,12Z)) is a phosphatidylinositol bisphosphate. Phosphatidylinositol bisphosphates are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to a bisphosphorylated inositol (hexahydroxycyclohexane). Phosphatidylinositol bisphosphates 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 bisphosphates 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. PIP2(18:0/16:2(9Z,12Z)), in particular, consists of one chain of stearic acid at the C-1 position and one chain of (9Z,12Z-hexadecadienoate) at the C-2 position. The stearic acid moiety is derived from animal fats, coco butter and sesame oil, while the (9Z,12Z-hexadecadienoate) moiety is derived from fish oils. The most important phosphatidylinositol bisphosphate in both quantitative and biological terms is phosphatidylinositol 4,5-bisphosphate. Phosphatidylinositol and the phosphatidylinositol phosphates are the main source of diacylglycerols that serve as signaling 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/C43H81O19P3/c1-3-5-7-9-11-13-15-17-18-20-21-23-25-27-29-31-36(44)57-33-35(59-37(45)32-30-28-26-24-22-19-16-14-12-10-8-6-4-2)34-58-65(55,56)62-41-38(46)39(47)42(60-63(49,50)51)43(40(41)48)61-64(52,53)54/h8,10,14,16,35,38-43,46-48H,3-7,9,11-13,15,17-34H2,1-2H3,(H,55,56)(H2,49,50,51)(H2,52,53,54)/t35-,38?,39?,40?,41+,42?,43+/m1/s1