PtdIns-(3,5)-P2 (1,2-dipalmitoyl) (sodium salt)

The phosphatidylinositol (PtdIns) phosphates represent a small percentage of total membrane phospholipids. However, they play a critical role in the generation and transmission of cellular signals. Phosphatidylinositol (PtdIns)-(3,5)-P2 (1,2-dipalmitoyl) (sodium salt) is a synthetic analog of natural PtdIns featuring saturated C16:0 fatty acids at the sn-1 and sn-2 positions. The compound features the same inositol and diacylglycerol stereochemistry as that of the natural compound. PtdIns-(3,5)-P2 is rapidly synthesized from PtdIns-(3)-P1 in yeast when a PtdIns-(3)-P5-hydroxy kinase is activated during hyperosmotic conditions. PtdIns-(3,5)-P2 is also present in mammalian cells, such as monkey COS-7 cells, where a similar biosynthetic route has been demonstrated. Formal Name: 1-(1,2R-dihexadecanoylphosphatidyl)inositol-3,5-bisphosphate, trisodium salt. Synonyms: Phosphatidylinositol-3,5-diphosphate C-16. Molecular Formula: C41H78O19P3 . 3Na. Formula Weight: 1036.9. Purity: >98%. Formulation: A lyophilized powder. Solubility: 50 mM HEPES*: 8 mg/ml, CHCl3:CH3OH:H2O (3:2:1): 10 mg/ml, PBS (pH 7.2): 1 mg/ml (opaque solution). SMILES: O[C@@H]1[C@H](OP([O-])(O)=O)[C@@H](O)[C@H](OP([O-])(O)=O)[C@@H](O)[C@@H]1OP([O-])(OC[C@H](OC(CCCCCCCCCCCCCCC)=O)COC(CCCCCCCCCCCCCCC)=O)=O.[Na+].[Na+].[Na+]. InChi Code: InChI=1S/C41H81O19P3.3Na/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)60-41-37(45)39(58-61(47,48)49)36(44)40(38(41)46)59-62(50,51)52,,,/h33,36-41,44-46H,3-32H2,1-2H3,(H,53,54. InChi Key: NBKRWHZNPNTETQ-PBBZQLKASA-K. Side Chain Carbon Sum: 32:0.