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459620

Sigma-Aldrich

Okadaic Acid sodium salt

≥98% (TLC), solid,film (colorless), protein phosphatase 2A and protein phosphatase 1 inhibitor, Calbiochem®

Synonym(s):

Okadaic Acid, Sodium Salt

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About This Item

Empirical Formula (Hill Notation):
C44H67O13 · Na
Molecular Weight:
826.98
UNSPSC Code:
12352106
NACRES:
NA.77

product name

Okadaic Acid, Sodium Salt, Water-soluble analog of Okadaic Acid. Inhibits protein phosphatases 1 and 2A.

Quality Level

Assay

≥98% (TLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white to off-white

solubility

water: 1 mg/mL
DMSO: 20 mg/mL
ethanol: 20 mg/mL

shipped in

ambient

storage temp.

−20°C

General description

Water-soluble analog of Okadaic Acid (Cat. No. 495604). Inhibits protein phosphatases 1 and 2A.

Biochem/physiol Actions

Cell permeable: no
Product does not compete with ATP.
Reversible: no
Target IC50: 10-15 nM, 0.1 nM against protein phosphatase 1, protein phosphatase 2A, respectively

Warning

Toxicity: Toxic (F)

Other Notes

Due to the nature of the Hazardous Materials in this shipment, additional shipping charges may be applied to your order. Certain sizes may be exempt from the additional hazardous materials shipping charges. Please contact your local sales office for more information regarding these charges.
Gjertsen, B.T., et al. 1994. J. Cell Sci.107, 3363.
Kiguchi, K., et al. 1994. Cell Growth Differentiation5, 995.
Ohaka, Y., et al. 1993. Biochem. Biophys. Res. Commun.197, 916.
Gopalakrishna, R., et al. 1992. Biochem. Biophys. Res. Commun.189, 950.
Kreienbuhl, P., et al. 1992. Blood80, 2911.
Normura, M., et al. 1992. Biochemistry31, 11915.
Song, Q., et al. 1992. J. Cell Physiol.153, 550.
Tada, Y., et al. 1992. Immunopharmacol.24, 17.
Cohen, P., et al. 1990. Trends Biochem. Sci.15, 98.
Cohen, P. 1989. Annu. Rev. Biochem.58, 453.
Cohen, P., and Cohen, P.T.W. 1989. J. Biol. Chem.254 21435.
Haystead, T.A. et al. 1989. Nature337, 78.

Legal Information

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

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3


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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P Kreienbühl et al.
Blood, 80(11), 2911-2919 (1992-12-01)
The phosphatase inhibitors okadaic acid and calyculin A were found to elicit or to modify several neutrophil responses, suggesting that dephosphorylation plays a regulatory role. The concentrations of okadaic acid (> or = 1 mumol/L) that were effective on neutrophil
B T Gjertsen et al.
Journal of cell science, 107 ( Pt 12), 3363-3377 (1994-12-01)
The protein phosphatase inhibitors okadaic acid and calyculin A at moderate concentrations induced three types of apoptotic promyelocytic leukemia cell death, distinct with respect to ultrastructure and polynucleotide fragmentation. Calyculin A at higher concentrations (> 50 nM) induced a non-apoptotic
M Nomura et al.
Biochemistry, 31(47), 11915-11920 (1992-12-01)
Smooth muscle myosin light chain kinase is phosphorylated at two sites (A and B) by different protein kinases. Phosphorylation at site A increases the concentration of Ca2+/calmodulin required for kinase activation. Diphosphorylated myosin light chain kinase was used to determine
R Gopalakrishna et al.
Biochemical and biophysical research communications, 189(2), 950-957 (1992-12-15)
The cell-permeable inhibitors of type 1 and 2A protein phosphatases, okadaic acid and calyculin-A, induced a redistribution of protein kinase C (PKC) activity and immunoreactivity (40 to 60%) from cytosol to membrane in some cell types. Calyculin-A was 100-fold more
K Kiguchi et al.
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research, 5(9), 995-1004 (1994-09-01)
To investigate a possible relationship between apoptosis induction and protein phosphorylation in human breast carcinoma cells, we treated three such cell types, MB-231, MCF-7, and AU-565, with okadaic acid (OA), an inhibitor of protein phosphatases 1 and 2A, or phorbol

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