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850165P

Avanti

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

Synonym(s):

1-octadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-[phosphoinositol-4,5-bisphosphate] (ammonium salt); PIP2[4′,5′](18:0/20:4(5Z,8Z,11Z,14Z))

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About This Item

Empirical Formula (Hill Notation):
C47H94N3O19P3
CAS Number:
799268-59-0
Molecular Weight:
1098.18
UNSPSC Code:
51191904
NACRES:
NA.25

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+]

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 Code

11 - Combustible Solids

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Peter Y Mercredi et al.
Journal of molecular biology, 428(8), 1637-1655 (2016-03-20)
Assembly of HIV-1 particles is initiated by the trafficking of viral Gag polyproteins from the cytoplasm to the plasma membrane, where they co-localize and bud to form immature particles. Membrane targeting is mediated by the N-terminally myristoylated matrix (MA) domain
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
Qinrui Wang et al.
Structure (London, England : 1993), 28(2), 169-184 (2019-12-07)
Polycystin-2 (PC2) is a transient receptor potential (TRP) channel present in ciliary membranes of the kidney. PC2 shares a transmembrane fold with other TRP channels, in addition to an extracellular domain found in TRPP and TRPML channels. Using molecular dynamics
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
Yi Wen et al.
Biophysical journal, 114(11), 2630-2639 (2018-06-07)
Phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2 or PIP2), is a key component of the inner leaflet of the plasma membrane in eukaryotic cells. In model membranes, PIP2 has been reported to form clusters, but whether these locally different conditions could give rise to
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