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Protease Inhibitor Cocktail(EDTA-Free,100X in DMSO)
Equivalent to Sigma P8340, for use with cell and tissue extracts to increase protein stability

Catalog No.K1007
Size Price Stock Qty
In stock
1ml x 20
In stock
1ml x 50
In stock
1ml x 100
In stock

Tel: +1-832-696-8203

Email: [email protected]

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Sample solution is provided at 25 µL, 10mM.

Product Citations

1. M.R. Plewes, P.D. Burns. "Effect of fish oil on agonist-induced receptor internalization of the prostaglandin F 2α receptor and cell signaling in bovine luteal cells in vitro." Domestic Animal Endocrinology. 2017 December 12
2. Rana PS, Mudrak NJ, et al. "Phase separation in necrotic cells." Biochem Biophys Res Commun. 2017 Oct 21;492(3):300-303. PMID:28859980

Quality Control

Quality Control & DataSheet

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Related Biological Data

Protease Inhibitor Cocktail

Related Biological Data

Protease Inhibitor Cocktail

Related Biological Data

Protease Inhibitor Cocktail

Related Biological Data

Protease Inhibitor Cocktail

Related Biological Data

Protease Inhibitor Cocktail


Thaw at room temperature, add at 1:100 (v/v) dilution to solution samples (such as cell lysates or tissue extracts) before assaying.

Applications: WB, Co-IP, pull-down, IF, IHC, kinase assay and etc.

Components and storage

Catalog No. Product Name Summary Targets CAS Number Smiles
A2573 AEBSF.HCl Serine protease inhibitor Proteases|Serine Protease 30827-99-7 C1=CC(=CC=C1CCN)S(=O)(=O)F.Cl
A2574 Aprotinin Inhibitor of bovine pancreatic trypsin Proteases|Serine Protease 9087-70-1
A2575 Bestatin Aminopeptidase inhibitor Proteases|Aminopeptidase 58970-76-6 CC(C)CC(C(=O)O)NC(=O)C(C(CC1=CC=CC=C1)N)O
A2576 E-64 Cysteine protease inhibitor,irreversible Proteases|Cathepsin 66701-25-5 CC(C)CC(C(=O)NCCCCN=C(N)N)NC(=O)C1C(O1)C(=O)O
A2570 Leupeptin Inhibitor of serine and cysteine proteases Proteases|Serine Protease 103476-89-7 O=C(C(C([H])([H])C(C([H])([H])[H])([H])C([H])([H])[H])([H])N([H])C(C([H])([H])[H])=O)N([H])C(C(N([H])C(C([H])=O)([H])C([H])([H])C([H])([H])C([H])([H])/N=C(N([H])[H])/N([H])[H])=O)([H])C([H])([H])C(C([H])([H])[H])([H])C([H])([H])[H]
A2571 Pepstatin A Aspartic proteinases inhibitor Proteases|Other Proteases 26305-03-3 CC(C)CC(C(CC(=O)O)O)NC(=O)C(C)NC(=O)CC(C(CC(C)C)NC(=O)C(C(C)C)NC(=O)C(C(C)C)NC(=O)CC(C)C)O
Stored at -20°C, and stable for at least 12 months.


Endogenous proteins are produced and degraded in a balanced state, so their cellular levels are stable under stable environmental conditions. Crude cell extracts contain a number of endogenous enzymes, such as phosphatases and proteases, which are capable of degrading proteins in the extracts. Protein production is greatly halted and degradation is increased when proteins are extracted from cells and tissues in vitro. The best way to increase the yield of intact proteins is to add inhibitors of those enzymes known to be present.

Protease inhibitor cocktail is used in cell lysates or tissue extracts to increase protein stability. The cocktail functions to inhibit proteases that would degrade either non-phosphorylated or phosphorylated protein substrates.

This protease inhibitor cocktail contains individual components, including AEBSF, Aprotinin, Bestatin, E-64, Leupeptin and Pepstatin A with a broad specificity for cysteine, serine, acid proteases, and aminopeptidases. This protease inhibitor cocktail has been optimized and tested for mammalian cells and tissue extracts. This protease inhibitor cocktail is supplied as a ready-to-use solution in DMSO.


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