New England Biolabs is working diligently to ensure we keep our employees and their families safe, while maintaining our business continuity. Despite a "Stay At Home" advisory being put in place in Massachusetts, USA, we are deemed an essential business, and our manufacturing and distribution teams continue to be fully operational. We are continuing to work with our suppliers and distribution partners to ensure uninterrupted access to our products and technical support.

pMAL™ Protein Fusion and Purification System

As of June 30th, 2020, this product will be discontinued. It is being replaced by the NEBExpress® MBP Fusion and Purification System (NEB #E8201), which offers enhanced performance.

The pMAL™ Protein Fusion and Purification System requires a cloned gene be inserted into a pMAL vector down-stream from the malE gene, which encodes maltose-binding protein (MBP). This results in the expression of an MBP-fusion protein. The technique uses the strong Ptac promoter and the translation initiation signals of MBP to express large amounts of the fusion protein. The fusion protein is then purified by a one-step affinity purification specific for MBP.

  • Expression in either the cytoplasm or periplasm: periplasmic expression can enhance folding of proteins with disulfide bonds
  • Fusion to MBP has been shown to enhance the solubility of proteins expressed in E. coli
  • Gentle elution with maltose; no detergents or harsh denaturants required
  • Reliable expression and substantial yields (up to 100 mg/L)
Learn more about how this product is being used in the Product Citation Tool
Catalog # Concentration Size
E8200S Not Applicable 1 set
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