PtdIns-(1,2-dipalmitoyl) (ammonium salt) (CAS 34290-57-8)

PtdIns-(1,2-dipalmitoyl) (ammonium salt) is a phosphatidylinositol derivative with two palmitoyl fatty acid chains attached at the sn-1 and sn-2 positions of the glycerol backbone. This compound is crucial in phosphoinositide research as it mirrors the structure of natural phosphatidylinositol found in cellular membranes. Phosphatidylinositol plays a pivotal role as a precursor for the synthesis of phosphoinositide signaling molecules like phosphatidylinositol-4,5-bisphosphate (PIP2) and phosphatidylinositol-3,4,5-trisphosphate (PIP3). These signaling lipids are involved in crucial cellular processes such as cell growth, differentiation, and membrane trafficking. In research, PtdIns-(1,2-dipalmitoyl) is utilized to investigate lipid-protein interactions, especially those involving pleckstrin homology (PH) domains, which recognize specific phosphoinositide head groups. Additionally, this compound serves as a substrate for studying phosphoinositide kinases and phosphatases, providing insight into the regulatory mechanisms controlling the synthesis and breakdown of key signaling lipids. Furthermore, it aids in elucidating the molecular architecture of membrane-bound enzyme complexes and the dynamics of phosphoinositide-mediated signaling cascades. Its synthetic availability and defined structure make it a valuable tool for dissecting lipid signaling pathways and exploring lipid-protein interactions in vitro.