Thanksgiving Shipping Schedule: Orders placed on Tuesday, November 22, 2022, will ship for delivery Wednesday, November 23, 2022. We will be closed on Thursday November 24, 2022, and Friday, November 25, 2022.

Orders placed on Wednesday November 23rd, will be shipped on Monday, November 28th.

NiCo21(DE3) Competent E. coli

Having trouble opening your tubes? NEB Tube Opener can help!

Chemically competent E. coli cells suitable for T7 expression with improved purity of target proteins isolated by IMAC.

  • Superior alternative to BL21(DE3) for routine protein expression
  • Deficient in proteases Lon and OmpT
  • Resistant to phage T1 (fhuA2)
  • Free of animal products
  • No dry ice surcharge on competent cell shipments
Catalog # Concentration Size List Price Your Price Quantity
C2529H Not Applicable 20 x 0.05 ml $398.00
Please enter a quantity for at least one size
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