Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2008-09-12 02:04:00 UTC |
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Update Date | 2022-11-30 19:03:46 UTC |
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HMDB ID | HMDB0010035 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | PIP2(16:0/18:0) |
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Description | PIP2(16:0/18:0) 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(16:0/18:0), in particular, consists of one chain of palmitic acid at the C-1 position and one chain of stearic acid at the C-2 position. The palmitic acid moiety is derived from fish oils, milk fats, vegetable oils and animal fats, while the stearic acid moiety is derived from animal fats, coco butter and sesame oil. 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. |
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Structure | [H][C@@](COC(=O)CCCCCCCCCCCCCCC)(COP(O)(=O)O[C@H]1C(O)C(O)C(OP(O)(O)=O)[C@@H](OP(O)(O)=O)C1O)OC(=O)CCCCCCCCCCCCCCCCC InChI=1S/C43H85O19P3/c1-3-5-7-9-11-13-15-17-18-20-22-24-26-28-30-32-37(45)59-35(33-57-36(44)31-29-27-25-23-21-19-16-14-12-10-8-6-4-2)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/h35,38-43,46-48H,3-34H2,1-2H3,(H,55,56)(H2,49,50,51)(H2,52,53,54)/t35-,38?,39?,40?,41+,42?,43+/m1/s1 |
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Synonyms | Value | Source |
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1-Hexadecanoyl-2-octadecanoyl-sn-glycero-3-phospho-(1'-myo-inositol-3',4'-bisphosphate) | HMDB | 1-Palmitoyl-2-stearoyl-sn-glycero-3-phosphoinositol-bisphosphate | HMDB | 1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate | HMDB | Phosphatidylinositol diphosphate(16:0/18:0) | HMDB | Phosphatidylinositol diphosphate(34:0) | HMDB | PIP2(34:0) | HMDB | PIP2[3',4'](16:0/18:0) | HMDB | {[(1S,3S)-3-({[(2R)-3-(hexadecanoyloxy)-2-(octadecanoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2,4,5-trihydroxy-6-(phosphonooxy)cyclohexyl]oxy}phosphonate | HMDB |
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Chemical Formula | C43H85O19P3 |
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Average Molecular Weight | 999.0449 |
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Monoisotopic Molecular Weight | 998.489790074 |
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IUPAC Name | {[(4S,6S)-4-({[(2R)-3-(hexadecanoyloxy)-2-(octadecanoyloxy)propoxy](hydroxy)phosphoryl}oxy)-2,3,5-trihydroxy-6-(phosphonooxy)cyclohexyl]oxy}phosphonic acid |
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Traditional Name | [(4S,6S)-4-{[(2R)-3-(hexadecanoyloxy)-2-(octadecanoyloxy)propoxy(hydroxy)phosphoryl]oxy}-2,3,5-trihydroxy-6-(phosphonooxy)cyclohexyl]oxyphosphonic acid |
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CAS Registry Number | Not Available |
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SMILES | [H][C@@](COC(=O)CCCCCCCCCCCCCCC)(COP(O)(=O)O[C@H]1C(O)C(O)C(OP(O)(O)=O)[C@@H](OP(O)(O)=O)C1O)OC(=O)CCCCCCCCCCCCCCCCC |
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InChI Identifier | InChI=1S/C43H85O19P3/c1-3-5-7-9-11-13-15-17-18-20-22-24-26-28-30-32-37(45)59-35(33-57-36(44)31-29-27-25-23-21-19-16-14-12-10-8-6-4-2)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/h35,38-43,46-48H,3-34H2,1-2H3,(H,55,56)(H2,49,50,51)(H2,52,53,54)/t35-,38?,39?,40?,41+,42?,43+/m1/s1 |
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InChI Key | YWQDMMFQDDLESQ-NXVRDOABSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as phosphatidylinositol-4,5-bisphosphates. These are phosphatidylinositol bisphosphates in which the two phosphate groups are at C-4 and C-5 of the inositol moiety. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Glycerophospholipids |
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Sub Class | Glycerophosphoinositol phosphates |
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Direct Parent | Phosphatidylinositol-4,5-bisphosphates |
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Alternative Parents | |
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Substituents | - Diacylglycerophosphoinositol-4,5-bisphosphate
- Diacylglycerophosphoinositol
- Glycerophosphoinositol
- Inositol phosphate
- Cyclohexanol
- Fatty acid ester
- Dialkyl phosphate
- Monoalkyl phosphate
- Cyclitol or derivatives
- Dicarboxylic acid or derivatives
- Organic phosphoric acid derivative
- Phosphoric acid ester
- Fatty acyl
- Alkyl phosphate
- Cyclic alcohol
- Carboxylic acid ester
- Secondary alcohol
- Carboxylic acid derivative
- Polyol
- Alcohol
- Hydrocarbon derivative
- Organic oxide
- Organic oxygen compound
- Organooxygen compound
- Carbonyl group
- Aliphatic homomonocyclic compound
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Molecular Framework | Aliphatic homomonocyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | |
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Disposition | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesNot Available |
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