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Sigma-Aldrich

L-α-Phosphatidyl-D-myo-inositol-4,5-bisphosphate, Triammonium Salt, Porcine Brain

A component of membrane-bound receptors in association with phospholipase C (PLC).

Synonym(s):

L-α-Phosphatidyl-D-myo-inositol-4,5-bisphosphate, Triammonium Salt, Porcine Brain, PIP₂

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About This Item

Empirical Formula (Hill Notation):
C47H82O19P3 · 3NH4
CAS Number:
383907-42-4
Molecular Weight:
1098.18
UNSPSC Code:
12352211
NACRES:
NA.77

Quality Level

100

Assay

≥98% (TLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

color

white to off-white

solubility

water: 10 mg/mL
chloroform: 50 mg/mL

shipped in

wet ice

storage temp.

−70°C

InChI

1S/C47H85O19P3.3H3N/c1-3-5-7-9-11-13-15-17-19-20-22-24-26-28-30-32-34-36-41(49)63-39(37-61-40(48)35-33-31-29-27-25-23-21-18-16-14-12-10-8-6-4-2)38-62-69(59,60)66-45-42(50)43(51)46(64-67(53,54)55)47(44(45)52)65-68(56,57)58;;;/h11,13,17,19,22,24,28,30,39,42-47,50-52H,3-10,12,14-16,18,20-21,23,25-27,29,31-38H2,1-2H3,(H,59,60)(H2,53,54,55)(H2,56,57,58);3*1H3/b13-11-,19-17-,24-22-,30-28-;;;/t39-,42?,43+,44?,45-,46?,47?;;;/m1.../s1

InChI key

GAIOWTITBYPFJE-JVILRMJCSA-N

Related Categories

General description

A component of membrane-bound receptors in association with phospholipase C (PLC). Potently stimulates brain phospholipase D (PLD) activity in vitro. Has been shown to activate protein kinase C (PKC) in the presence of phosphatidylserine and Ca2+. Antagonist of ATP-sensitive potassium (KATP) channels when applied to inside-out membrane patches.
A component of membrane-bound receptors in association with phospholipase C. Hydrolysis of PIP2 yields IP3 and diacylglycerol, causing the release of intracellular Ca2+ and activation of protein kinase C. Potently stimulates phospholipase D activity in vitro in brain tissue. A substrate for PI 3-kinase. Antagonist of ATP inhibtion of ATP-sensitive potassium (KATP) channels when applied to inside-out membrane patches.



Note: This product is not to be used for animal treatment, in vivo research or in any other contact procedure with livestock.

Biochem/physiol Actions

Cell permeable: no
Primary Target
Brain phospholipase D (PLD)
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

Warning

Toxicity: Irritant (B)

Reconstitution

Following reconstitution in H₂O, store in the refrigerator (4°C). Do not freeze aqueous solutions. Following reconstitution in chloroform, aliquot and freeze (-20°C). Aqueous stock solutions are stable for up to 2 days at 4°C. Chloroform stock solutions are stable for up to 1 month at -20°C.

Other Notes

Baukrowitz, T., et al. 1998. Science 282, 1141.
Shyng, S.-L., and Nichols, C.G. 1998. Science 282, 1138.
Mazzotti, G., et al. 1995. J. Histochem. Cytochem. 43, 181.
Liscovitch, M., et al. 1994. J. Biol. Chem. 269, 21403.
Chauhan, A., et al. 1991. Biochem. Biophys. Res. Commun. 175, 852.
Williamson, J.R. 1986. Hypertension 8, 140.
Berridge, M.J., and Irvine, R.F. 1984. Nature312, 315.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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T Baukrowitz et al.
Science (New York, N.Y.), 282(5391), 1141-1144 (1998-11-06)
Adenosine triphosphate (ATP)-sensitive potassium (KATP) channels couple electrical activity to cellular metabolism through their inhibition by intracellular ATP. ATP inhibition of KATP channels varies among tissues and is affected by the metabolic and regulatory state of individual cells, suggesting involvement
Natsuki Watanabe et al.
Microorganisms, 8(7) (2020-07-19)
Phosphatidylinositol phosphates (PIPs) are involved in many cellular events as important secondary messengers. In Entamoeba histolytica, a human intestinal protozoan parasite, virulence-associated mechanisms such as cell motility, vesicular traffic, trogo- and phagocytosis are regulated by PIPs. It has been well
S L Shyng et al.
Science (New York, N.Y.), 282(5391), 1138-1141 (1998-11-06)
Adenosine triphosphate (ATP)-sensitive potassium (KATP) channels couple cell metabolism to electrical activity. Phosphatidylinositol phosphates (PIPs) profoundly antagonized ATP inhibition of KATP channels when applied to inside-out membrane patches. It is proposed that membrane-incorporated PIPs can bind to positive charges in
G Mazzotti et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 43(2), 181-191 (1995-02-01)
Phosphatidylinositol 4,5-bisphosphate (PIP2) is a key element of signal transduction, being the preferential substrate of specific phospholipases that produce second messengers such as inositol trisphosphate (IP3) and diacylglycerol (DG). Because PIP2 has been cytochemically identified by monoclonal antibodies not only
M Liscovitch et al.
The Journal of biological chemistry, 269(34), 21403-21406 (1994-08-26)
The activation of phospholipase D (PLD) is a receptor-mediated event that has been implicated in signal transduction and membrane traffic in eukaryotic cells. Little is known about the biochemical and molecular properties of signal-activated PLDs, and none has been isolated.
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