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About This Item
Empirical Formula (Hill Notation):
C47H94N3O19P3
CAS Number:
Molecular Weight:
1098.18
UNSPSC Code:
51191904
NACRES:
NA.25
Product Name
18:0-20:4 PI(4,5)P2, 1-stearoyl-2-arachidonoyl-sn-glycero-3-phospho-(1′-myo-inositol-4′,5′-bisphosphate) (ammonium salt), powder
assay
>99% (TLC)
form
powder
packaging
pkg of 1 × 100 μg (with stopper and crimp cap (850165P-100ug)), pkg of 1 × 500 μg (with stopper and crimp cap (850165P-500ug))
manufacturer/tradename
Avanti Research™ - A Croda Brand 850165P
lipid type
cardiolipins
phospholipids
shipped in
dry ice
storage temp.
−20°C
SMILES string
[H][C@@](COP([O-])(O[C@H]1[C@H](O)[C@@H](OP(O)([O-])=O)[C@H](OP([O-])(O)=O)[C@@H](O)[C@H]1O)=O)(OC(CCC/C=C\C/C=C\C/C=C\C/C=C\CCCCC)=O)COC(CCCCCCCCCCCCCCCCC)=O.[NH4+].[NH4+].[NH4+]
InChI key
GAIOWTITBYPFJE-WGJQOQIESA-N
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.
Phosphatidylinositol 4,5-bisphosphate (PIP2) is a negatively charged phospholipid, abundant in the plasma membrane.
Application
18:0-20:4 PI(4,5)P2 or 1-stearoyl-2-arachidonoyl-sn-glycero-3-phospho-(1′-myo-inositol-4′,5′-bisphosphate) (ammonium salt) has been used:
- in cryo-electron microscopy (cryo-EM) grid preparation
- in host 1-O-1-(Z)-octadecenyl-2-arachidonoyl-sn-glycero-3-phosphocholine (plasmenyl-SAPC) small unilamellar vesicles (SUVs) in the presence of H2O2 to activate cyt c plasmalogenase activity
- to study whether acyl chain types affect phosphatidylinositol 4,5-bisphosphate (PIP2) cluster formation
Packaging
2 mL Amber Serum Vial with Stopper and Crimp Cap (850165P-100ug)
2 mL Amber Serum Vial with Stopper and Crimp Cap (850165P-500ug)
Legal Information
Avanti Research is a trademark of Avanti Polar Lipids, LLC
Storage Class
11 - Combustible Solids
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George Khelashvili et al.
Biochemistry, 51(39), 7685-7698 (2012-09-07)
Syntaxin (STX) is a N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) protein that binds to the plasma membrane and regulates ion channels and neurotransmitter transporters. Experiments have established the involvement of the N-terminal segment of STX in direct protein-protein interactions and
Tao Liang et al.
The Journal of biological chemistry, 289(9), 6028-6040 (2014-01-17)
In β-cells, syntaxin (Syn)-1A interacts with SUR1 to inhibit ATP-sensitive potassium channels (KATP channels). PIP2 binds the Kir6.2 subunit to open KATP channels. PIP2 also modifies Syn-1A clustering in plasma membrane (PM) that may alter Syn-1A actions on PM proteins
Christopher M Jenkins et al.
The Journal of biological chemistry, 293(22), 8693-8709 (2018-03-14)
Plasmalogens are phospholipids critical for cell function and signaling that contain a vinyl ether linkage at the sn-1 position and are highly enriched in arachidonic acid (AA) at the sn-2 position. However, the enzyme(s) responsible for the cleavage of the
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 850165P-100UG | 04061835227167 |
| 850165P-1MG | 04065270903457 |
| 850165P-500UG | 04061835227174 |