BL21 Competent Cells
Three different strains that provide varying levels of expression control with T7 promoter-driven vectors, such as the pCAL and pET vectors.
- BL21 derivatives for tight expression control
- Express toxic proteins
- Use BL21, BL21-Gold or BL21-CodonPlus cells
- High-level protein expression
- Use for established expression constructs
- Economical alternative