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P8340

Sigma-Aldrich

Protease Inhibitor Cocktail

for use with mammalian cell and tissue extracts, DMSO solution

MDL number:
NACRES:
NA.77

Quality Level

biological source

bovine lung

form

DMSO solution

storage temp.

−20°C

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Specificity

Inhibits serine, cysteine, and acid proteases, and aminopeptidases.

Application

Protease Inhibitor Cocktail has been used-
  • as a buffer component during sonication of GFP (green fluorescent protein)-huntingtin-transfected HEK 293 cells in GST (glutathione S-transferase) pull down assay
  • as a component of lysis buffer
  • as a component of radioimmunoprecipitation assay buffer (RIPA)

Packaging

1, 5 mL in serum bottle

Biochem/physiol Actions

This mixture contains individual components, including AEBSF at 104 mM, Aprotinin at 80 μM, Bestatin at 4 mM, E-64 at 1.4 mM, Leupeptin at 2 mM and Pepstatin A at 1.5 mM. Each component has specific inhibitory properties. AEBSF and Aprotinin act to inhibit serine proteases, including trypsin, chymotrypsin, and plasmin amongst others. Bestatin inhibits aminpeptidases. E-64 acts against cystein proteases. Leupeptin acts against both serine and cystein proteases. Pepstatin A inhibits acid proteases.

Components

AEBSF
Aprotinin
Bestatin
E-64
Leupeptin
Pepstatin A

Caution

This cocktail should be stored at -20 °C.

Preparation Note

One mL of this cocktail solution is recommended for the inhibition of endogenous enzymes found in 100 mL of lysate from 20 g of bovine liver or 10 mL of lysate from CHO cells. This product is supplied as a solution in DMSO.

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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