IUPAC 名称
{[(4S,6S)-4-({[(2R)-2-(hexadeca-9,12-dienoyloxy)-3-(hexadecanoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2,3,5-trihydroxy-6-(phosphonooxy)cyclohexyl]oxy}phosphonic acid
描述
PIP2(16:0/16:2(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(16:0/16:2(9Z,12Z)), in particular, consists of one chain of palmitic acid at the C-1 position and one chain of (9Z,12Z-hexadecadienoate) at the C-2 position. The palmitic acid moiety is derived from fish oils, milk fats, vegetable oils and animal fats, 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/C41H77O19P3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-34(42)55-31-33(57-35(43)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2)32-56-63(53,54)60-39-36(44)37(45)40(58-61(47,48)49)41(38(39)46)59-62(50,51)52/h8,10,14,16,33,36-41,44-46H,3-7,9,11-13,15,17-32H2,1-2H3,(H,53,54)(H2,47,48,49)(H2,50,51,52)/t33-,36?,37?,38?,39+,40?,41+/m1/s1