BL21 (DE3) electro-competent E. coli cells are suitable for high efficiency transformation and routine protein expression. Increased cloning efficiencies versus typical BL21 cells makes the BL21(DE3) electro-competent E. coli cells ideal for construction of complex expression libraries.
- BL21 (DE3) elecro-competent cells provide the highest transformation efficiency (≥1×10^9 Cfu/µg pUC19 DNA) in the industry
- Available as 50 µl vials or 100 μl vials
- Quality control is performed following the production of each new lot of product to ensure that it meets the quality standards and specifications designated for the product
- Includes BL21 (DE3) electrocompetent cells, pUC19 control DNA and recovery medium
Genomic features a widely used host background, a T7 Expression Strain, a deficiency in both lon and ompT proteases resistant to phage T1 (fhuA2) B strain.
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- Catalog No:
- 103753-124
- 103753-122
- Genotypes:
- F–ompT hsdS(rB– mB–) gal dcm λ(DE3)
- F–ompT hsdS(rB– mB–) gal dcm λ(DE3)