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P0044

Sigma-Aldrich

Phosphatase Inhibitor Cocktail 3

DMSO solution

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Synonym(s):
Phosphatase inhibitor
EC Number:
NACRES:
NA.77

form

DMSO solution

Quality Level

shipped in

wet ice

storage temp.

2-8°C

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This Item
P1860PPC1010524627
shipped in

wet ice

shipped in

dry ice

shipped in

wet ice

shipped in

wet ice

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

-

Application

The phosphatase inhibitor cocktail improves the yields of intact proteins by adding inhibitors to enzymes that modify proteins present in cell extracts. This product has been tested on extract from animal tissues including human placenta and bovine liver, and on extracts of A431, CHO, and U937 cells. It has been optimized and tested for L-isozymes of alkaline phosphatase as measured with pNPP and for serine-threonine protein phosphatases.

Biochem/physiol Actions

This mixture contains individual components with specific inhibitory properties. Cantharidin inhibits protein phosphatase 2A. (-)-p-Bromolevamisole oxalate inhibits L-isoforms of alkaline phosphatases. Calyculin A inhibits protein phosphatases 1 and 2A.

Caution

As supplied, this product is stable for four years at the recommended 2-8°C storage temperature.

Preparation Note

This cocktail is supplied as a clear solution in dimethyl sulfoxide. It is recommended to dilute the cocktail at 1 mL of cocktail per 500 mg of protein extracted from tissue or cells. Often a final concentration of 1% (v/v) is used, which will inhibit phosphatase activities found in the 27,000 x g supernatant from human placenta and bovine liver, and in the 100,000 x g supernatant from A431, CHO, and U937 extracts.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F

Flash Point(C)

87 °C


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Phosphatase Inhibitor Cocktail

The use of phosphatase inhibitors is critical for all types of phosphorylation studies. Compare phosphatase inhibitor cocktails to select the best one for your research.

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