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Phosphatase Inhibitor Cocktail 3

DMSO solution

EC Number:


DMSO solution

Quality Level

shipped in

wet ice

storage temp.



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.


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



Flash Point(F)

188.6 °F

Flash Point(C)

87 °C

Certificate of Analysis

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Certificate of Origin

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Quotes and Ordering

Jinglin L Xie et al.
Nature communications, 8(1), 499-499 (2017-09-13)
The capacity to coordinate environmental sensing with initiation of cellular responses underpins microbial survival and is crucial for virulence and stress responses in microbial pathogens. Here we define circuitry that enables the fungal pathogen Candida albicans to couple cell cycle
Tetsuro Ikegami et al.
PLoS pathogens, 5(2), e1000287-e1000287 (2009-02-07)
Rift Valley fever virus (RVFV) (genus Phlebovirus, family Bunyaviridae) is a negative-stranded RNA virus with a tripartite genome. RVFV is transmitted by mosquitoes and causes fever and severe hemorrhagic illness among humans, and fever and high rates of abortions in
Sarahmi Ishida et al.
The Plant cell, 20(12), 3273-3288 (2008-12-25)
The homeostasis of gibberellins (GAs) is maintained by negative feedback in plants. REPRESSION OF SHOOT GROWTH (RSG) is a tobacco (Nicotiana tabacum) transcriptional activator that has been suggested to play a role in GA feedback by the regulation of GA
Miao Zhao et al.
Oncotarget, 8(44), 77061-77074 (2017-11-05)
p21-activated kinase 4 (PAK4) regulates cell proliferation, apoptosis, cell motility and F-actin remodeling, but the PAK4 interactome has not been systematically analyzed. Here, we comprehensively characterized the human PAK4 interactome by iTRAQ quantitative mass spectrometry of PAK4-immunoprecipitations. Consistent with its
Zhang Xiao Ying et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 22(21), 5383-5393 (2016-11-03)
This study was performed to further our understanding of the biological and genetic basis of follicular lymphoma and to identify potential novel therapy targets. We analyzed previously generated whole exome sequencing data of 23 follicular lymphoma cases and one transformed


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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