OverExpress(tm)C41(DE3) (Lucigen)
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Alternate Names
Sources
Lucigen Corporation
Chromosomal Genotype
F– ompT gal dcm hsdSB(rB- mB-)(DE3)
Plasmids
Phage
Phenotypes
Construction
Notes
- The OverExpress strains contain genetic mutations phenotypically selected for conferring tolerance to toxic proteins. The strain C41(DE3) was derived from BL21(DE3). This strain has at least one uncharacterized mutation, which prevents cell death associated with expression of many recombinant toxic proteins. The strain C43(DE3) was derived from C41(DE3) by selecting for resistance to a different toxic protein and can express a different set of toxic proteins to C41(DE3).
- an E. coli B strain with DE3, a λ prophage carrying the T7 RNA polymerase gene and lacIq
- Transformed plasmids containing T7 promoter driven expression are repressed until IPTG induction of T7 RNA polymerase from a lac promoter.
Derivatives
References
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