Merck, 840046X-5MG, Brain PI(4,5)P2

General description
Although PI(4,5)P2 is a minor component of cell membranes, it plays a critical role as a substrate for a number of important signaling proteins. PI(4,5)P2 is an intermediate in the IP3/DAG pathway where it is hydrolyzed by phospholipase C to liberate the second messengers, inositol 1,4,5-triphosphate (IP3) and diacylglycerol (DAG). PI(4,5)P2 is also a substrate for PI 3-kinase where it is phosphorylated to PI(3,4,5)P3, an activator of downstream signaling components such as the protein kinase AKT.
Phosphatidyl inositol (4,5) bisphosphate (PI(4,5)P₂)/PIP₂ is produced from phosphatidyl inositol monophosphates (PIP).
Application
Brain PI(4,5)P₂ has been used in the preparation of liposomes for dynamin-catalyzed fission assay and as a constituent in the lipid mixture for dual polarisation interferometry(DPI)
Biochem/physiol Actions
Phosphatidyl inositol (4,5) bisphosphate (PI(4,5)P₂) plays a key role in the early stages of vesicle formation. It functions in the recruitment of endocytic coats by binding to variety of proteins involved in endocytic trafficking. PI(4,5)P₂ is hydrolysed by phospholipase C to yield the signaling molecules diacylglycerol (DAG) and phosphatidyl inositol (3,4,5) triphosphate (PI(3,4,5)P₃). PI(4,5)P₂ is required for the functioning of many ion channels.
Packaging
5 mL Clear Glass Sealed Ampule (840046X-10mg)
5 mL Clear Glass Sealed Ampule (840046X-1mg)
5 mL Clear Glass Sealed Ampule (840046X-25mg)
5 mL Clear Glass Sealed Ampule (840046X-5mg)
Legal Information
Avanti Research is a trademark of Avanti Polar Lipids, LLC
Disclaimer
Supply conditions do not apply to the regions and states of Brazil: North, Northeast, Mato Grosso do Sul, Mato Grosso, and Rio Grande do Sul.