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P8465

Sigma-Aldrich

Protease Inhibitor Cocktail

lyophilized powder, for the inhibition of serine, cysteine, aspartic, metalloproteases and aminopeptidases, for use with bacterial cell extracts, lyophilized powder

Synonyme(s) :

Protease inhibitor

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.77

product name

Protease Inhibitor Cocktail powder, for use with bacterial cell extracts, lyophilized powder

Niveau de qualité

Forme

lyophilized powder

Température de stockage

−20°C

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Description générale

The Protease Inhibitor Cocktail is a lyophilized powder for use in the inhibition of proteases present in bacterial cell extracts.

The product contains individual components that target serine, cysteine, aspartic, and metalloproteases, as well as aminopeptidases.

Application

The protease inhibitor cocktail improves the yields of intact proteins by adding inhibitors to enzymes that modify proteins present in cell extracts. This product has been optimized and tested for bacterial cell use, with broad specificity against serine, cysteine, and aspartic proteases, metalloproteases, and aminopeptidases.

Actions biochimiques/physiologiques

This mixture contains individual components, including AEBSF at 23 mM, EDTA at 100 mM, Bestatin at 2 mM, Pepstatin A at 0.3 mM, and E-64 at 0.3 mM. AEBSF acts to inhibit serine proteases, including trypsin, chymotrypsin, and plasmin amongst others. Bestatin inhibits aminpeptidases. E-64 acts against cystein proteases. Pepstatin A inhibits acid proteases. EDTA is an inhibitor of metalloproteases.

Caractéristiques et avantages

Broad specificity against serine, cysteine, aspartic, and metalloproteases, as well as aminopeptidases.

Contains individual components, including AEBSF, EDTA, Bestatin, Pepstatin A, and E-64, each targeting specific types of proteases.

Lyophilized powder is stable for at least 2 years when stored unopened at -20°C.

Supplied with a vial of DMSO for preparation of a cocktail solution.

One mL of the cocktail solution is recommended for the inhibition of protease activity found in 20 mL of cell lysate from 4g of E. coli cells.

Attention

The lyophilized powder is stable for at least 2 years when stored unopened at -20°C. It is also supplied with a vial of DMSO. A prepared solution in DMSO and water will remain clear and colorless for approximately 24 hours at 4°C, before the inhibitors will precipitate out.

Notes préparatoires

A cocktail solution may be prepared by adding 1 mL of DMSO and 4 mL of deionized water to the 5 mL size or 5 mL of DMSO and 20 mL of deionized water to the 25 mL size. One mL of the cocktail solution is recommended for the inhibition of the protease activity found in 20 mL of cell lysate from 4g of E. coli cells.

Pictogrammes

Health hazardCorrosionExclamation mark

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 4 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A - STOT RE 2 Inhalation

Organes cibles

Respiratory Tract

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Kerri Kobryn et al.
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Evgeniy V Petrotchenko et al.
Molecular & cellular proteomics : MCP, 11(7), M111-M111 (2012-03-23)
Chemical cross-linking combined with mass spectrometry is a rapidly developing technique for structural proteomics. Cross-linked proteins are usually digested with trypsin to generate cross-linked peptides, which are then analyzed by mass spectrometry. The most informative cross-links, the interpeptide cross-links, are
H Cao et al.
Plant physiology, 120(1), 205-216 (1999-05-11)
This study identified the complement of soluble starch synthases (SSs) present in developing maize (Zea mays) endosperm. The product of the du1 gene, DU1, was shown to be one of the two major soluble SSs. The C-terminal 450 residues of
Frank Gillardon
Journal of neurochemistry, 110(5), 1514-1522 (2009-06-24)
Autosomal dominant mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common genetic cause of late-onset Parkinson's disease. The most prevalent LRRK2(G2019S) mutation has repeatedly been shown to enhance kinase activity and neurotoxicity, however, the molecular mechanisms leading to
N Borruel et al.
Gut, 51(5), 659-664 (2002-10-16)
Tumour necrosis factor alpha (TNF-alpha) plays a key role in the pathogenesis of intestinal inflammation in Crohn's disease. The effect of bacteria on TNF-alpha release by intestinal mucosa was investigated. Ileal specimens were obtained at surgery from 10 patients with

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