Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Thermo Scientific™ B-PER™ Complete Bacterial Protein Extraction Reagent

Efficient, gentle lysis and extraction of E.coli and other bacterial cells

Supplier:  Thermo Scientific™ 89821

 View more versions of this product

Catalog No. PI89821

Add to Cart

Includes: Reagent packages are available in Tris and phosphate buffer formulations; Kits contain Tris-based B-PER Reagent plus lysozyme and DNase I enzymes.



  • An easy-to-use cell lysis reagent that effectively disrupts cells and solubilizes native or recombinant proteins without denaturation
  • All B-PER Reagents are compatible with downstream applications such as affinity chromatography (e.g., immobilized metal affinity chromatography, glutathione chromatography), SDS-PAGE, and protein quantification (e.g., Pierce BCA Protein Assay, Pierce 660nm Protein Assay)
  • This all-inclusive formulation combines the lysis reagent with lysozyme, and a universal nuclease to enable mild extraction from both gram-negative and gram-positive bacteria
  • Depending on the particular application protease inhibitors, salts, reducing agents, denaturants, and chelating agents may be added to the reagent.

Features of the B-PER Bacterial Protein Extraction Reagent:

  • Detergent in Tris buffer with Lysozyme and Universal Nuclease
  • Improved cell lysis and DNA digestion, thereby releasing soluble proteins and reducing viscosity to increase yields
  • Recovery of large molecular weight proteins (high MW proteins)
  • Cost-effective equivalent to Merck Millipore Bugbuster™ Master Mix
  • More effective than traditional sonication and typical homemade lysis buffers, many of which include detergents and components that interfere with downstream applications


Proprietary detergent in 20mM Tris buffer, pH 7.5, containing lysozyme and universal nuclease
Bacterial Protein Extraction Reagent
Store at 4°C.
250 mL
250 mL




Product Certifications


Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit

For Research Use Only. Not for use in diagnostic procedures.