NEB will be closed Thursday, November 23, 2017 and Friday, November 24, 2017. Orders placed will process Monday, November 27, 2017.

NiCo21(DE3) Competent E. coli

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

Ordering Information

  • 20 x 0.05 ml/tube
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