While not specifically listed as a '100X' concentration, a volume of 1 ml of this solution is sufficient for 100ml of cell lysate. However, this is based on the mass and origin of the lysate preparation. The 100 mL of cell lysate referenced is prepared from 20 g of E. coli cells or 10 g of baculovirus-infected cells. Please see the link below to review additional information available in the product datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/934/419/p8849dat-ms.pdf
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A propos de cet article
Nom du produit
Cocktail d′inhibiteurs de protéases, for use in purification of Histidine-tagged proteins, DMSO solution
biological source
synthetic
Quality Segment
form
DMSO solution
solubility
water: soluble
storage temp.
−20°C
General description
Ce cocktail contient un mélange d'inhibiteurs qui cible spécifiquement les protéases à sérine, à cystéine et à acide aspartique, ainsi que les protéases du type thermolysine et les aminopeptidases.
Application
Il est recommandé pour inhiber l'activité des protéases de 100 ml de lysat cellulaire provenant de 20 g de cellules d'E. coli ou de 10 g de cellules ovariennes de nymphe de Spodoptera frugiperda infectées par un baculovirus.
Biochem/physiol Actions
Features and Benefits
Cible de nombreux types de protéases, pour une inhibition totale de l'activité protéase.
Compatible avec les applications d'IMAC du fait de l'absence d'agents chélateurs.
Conditionné en emballages pratiques.
Preparation Note
Ce cocktail d′inhibiteurs de protéases a été optimisé est testé pour les protéines comportant une étiquette de poly-histidine.
Other Notes
Bestatine
E-64
Pepstatine A
Phosphoramidon
1 of 1
Cet article | |||
|---|---|---|---|
| form DMSO solution | form DMSO solution | form DMSO solution | form DMSO solution |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 300 |
| biological source synthetic | biological source bovine lung | biological source - | biological source - |
| solubility water: soluble | solubility water: soluble | solubility water: soluble | solubility water: soluble |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
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Classe de stockage
10 - Combustible liquids
wgk
WGK 1
flash_point_f
185.0 °F - closed cup
flash_point_c
85 °C - closed cup
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Is it 100x?
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What is the stability at -20°C of the protease inhibitor cocktail in DMSO?
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This product is quite stable when stored at the recommended -20°C. The material is not assigned an expiration date but has a recommended retest date of 4 years from the date of quality release.
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Is there any miscibility data available for Cat # P8849?
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P8849 is DMSO based, and DMSO is known to be miscible in water and cell culture media. The product is supplied as a clear solution in DMSO, with 1 mL of solution.
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Can this product be used in Expi293 mammalian cell culture for stability of secreted proteins without harming the cells during expression or is this recommended only after cells spun out of media containing 6-His tagged proteins?
1 answer-
This product has not been tested for use in cell culture medium as an additive to preserve secreted proteins. Please see the link below to review an alternative product tested specifically for this application:
P1860 Datasheet
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/413/261/p1860dat-ms.pdfP1860 Product Page
https://www.sigmaaldrich.com/product/sigma/p8340Helpful?
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Can Product No. P8849, Protease Inhibitor Cocktail, be used with with HIS-Select™ products or any other immobilized metal affinity chromatography (IMAC) products?
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This product does not contain EDTA and can be used with sample processing by immobilized metal affinity chromatography (IMAC) suchas used for the purification of histidine-tagged proteins..
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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What is the difference between Protease Inhibitors P8849 and S8830?
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P8849 is a DMSO solution and S8830 is a water soluble tablet. P8849 formulation is considered proprietary but does contain AEBSF, Pepstatin A, Bestatin, E-64, and Phosphoramidon. The formulation of S8830 also contains Aprotinin and Pepstatin A and the exact formulation is given on the product information sheet (under Documents, above).
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How much of Product No. P8849, Protease Inhibitor Cocktail, should be added to the cell lysate?
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A 1:100 dilution is the recommended concentration.
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