PIP(16:0/20:3(8Z,11Z,14Z))
IUPAC 名称
{[(1R,3S)-3-({[(2R)-3-(hexadecanoyloxy)-2-(icosa-8,11,14-trienoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2,4,5,6-tetrahydroxycyclohexyl]oxy}phosphonic acid
描述
PIP(16:0/20:3(8Z,11Z,14Z)) is a phosphatidylinositol phosphate. Phosphatidylinositol phosphates are acidic (anionic) phospholipids that consist of a phosphatidic acid backbone, linked via the phosphate group to a phosphorylated inositol (hexahydroxycyclohexane). Phosphatidylinositol phosphates 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 phosphates 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. PIP(16:0/20:3(8Z,11Z,14Z)), in particular, consists of one chain of palmitic acid at the C-1 position and one chain of homo-g-linolenic acid at the C-2 position. The palmitic acid moiety is derived from fish oils, milk fats, vegetable oils and animal fats, while the homo-g-linolenic acid moiety is derived from fish oils, liver and kidney. The most important phosphatidylinositol phosphate in both quantitative and biological terms is phosphatidylinositol 4-phosphate. 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]
异构
[H][C@@](COC(=O)CCCCCCCCCCCCCCC)(COP(O)(=O)O[C@@]1([H])C(O)C(O)C(O)[C@@]([H])(OP(O)(O)=O)C1O)OC(=O)CCCCCCC=CCC=CCC=CCCCCC
InChI标识符
InChI=1S/C45H82O16P2/c1-3-5-7-9-11-13-15-17-18-19-20-22-24-26-28-30-32-34-39(47)59-37(35-57-38(46)33-31-29-27-25-23-21-16-14-12-10-8-6-4-2)36-58-63(55,56)61-45-42(50)40(48)41(49)44(43(45)51)60-62(52,53)54/h11,13,17-18,20,22,37,40-45,48-51H,3-10,12,14-16,19,21,23-36H2,1-2H3,(H,55,56)(H2,52,53,54)/t37-,40?,41?,42?,43?,44-,45+/m1/s1
键
KGCZGJHMHNLZHF-XVAPLQSISA-N