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.

T7 Express Competent E. coli (High Efficiency)

NEB does not add a dry ice surcharge to our competent cell shipments.

High efficiency chemically competent E. coli cells suitable for T7 protein expression.

  • T7 RNA Polymerase in the lac operon - no λ prophage
  • Deficient in proteases Lon and OmpT
  • Resistant to phage T1 (fhuA2)
  • Free of animal products
Learn more about how this product is being used in the Product Citation Tool
Catalog # Concentration Size
C2566I Not Applicable 6 x 0.2 ml/tube
C2566H Not Applicable 20 x 0.05 ml/tube
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