08:0 PI(4,5)P2 | 850185
1,2-dioctanoyl-sn-glycero-3-phospho-(1'-myo-inositol-4',5'-bisphosphate) (ammonium salt)
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- Molecular Formula
- Percent Composition
- C 37.64%, H 7.33%, N 5.27%, O 38.11%, P 11.65%
- 1 Years
- CAS Number
CAS Registry Number is a Registered Trademark of the American Chemical Society
- Molecular Weight
- Exact Mass
Liang, T., L. Xie, C. Chao, Y. Kang, X. Lin, T. Qin, H. Xie, Z.P. Feng, and H.Y. Gaisano. (2014). Phosphatidylinositol 4,5-biphosphate (PIP2) Modulates Interaction of Syntaxin-1Awith Sulfonylurea Receptor 1 to Regulate Pancreatic Beta-Cell ATP-Sensitive Potassium Channels. J Biol Chem [PubMed]
PtdIns4P synthesis by PI4KIIIalpha at the plasma membrane and its impact on plasma membrane identity. Nakatsu, F., J.M. Baskin, J. Chung, L.B. Tanner, G. Shui, S.Y. Lee, M. Pirruccello, M. Hao, N.T. Ingolia, M.R. Wenk, and P. De Camilli. (2012). J Cell Biol 199:1003-16.[PubMed]
Wang, K., Z. Yang, U. Nair, K. Mao, X. Liu, and D.J. Klionsky. (2012). Phosphatatidylinositol 4-kinases are required for autophagic membrane trafficking. J Biol Chem [PubMed]
Khelashvili, G., A. Galli, and H. Weinstein. (2012). Phosphatidylinositol 4,5-Biphosphate (PIP(2)) Lipids Regulate the Phosphorylation of Syntaxin N-Terminus by Modulating Both Its Position and Local Structure. Biochemistry 51:7685-98. [PubMed]
Hansen, S.B., X. Tao, and R. Mackinnon. (2011). Structural basis of PIP(2) activation of the classical inward rectifier K(+) channel Kir2.2. Nature[PubMed]
Hammond, G.R., M.J. Fischer, K.E. Anderson, J. Holdich, A. Koteci, T. Balla, and R.F. Irvine. (2012). PI4P and PI(4,5)P2 are essential but independent lipid determinants of membrane identity. Science 337:727-30.
The quantitatively minor phospholipid phosphatidylinositol (4,5)-bisphosphate [PI(4,5)P(2)] fulfills many cellular functions in the plasma membrane (PM), whereas its synthetic precursor, phosphatidylinositol 4-phosphate (PI4P), has no assigned PM roles apart from PI(4,5)P(2) synthesis. We used a combination of pharmacological and chemical genetic approaches to probe the function of PM PI4P, most of which was not required for the synthesis or functions of PI(4,5)P(2). However, depletion of both lipids was required to prevent PM targeting of proteins that interact with acidic lipids or activation of the transient receptor potential vanilloid 1 cation channel. Therefore, PI4P contributes to the pool of polyanionic lipids that define plasma membrane identity and to some functions previously attributed specifically to PI(4,5)P(2), which may be fulfilled by a more general polyanionic lipid requirement.[PubMed]