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Built for Tough Protein Expression. Designed for IPTG-inducible T7 systems, this BL21(DE3) derivative improves tolerance to toxic proteins while the pLysS plasmid suppresses basal expression for greater stability. Validated in 400+ publications, IG® C41pLysS(DE3) cells deliver dependable results for challenging protein expression. Custom formats, custom package sizes and bulk pricing are available upon request. -
Reliable Expression for Toxic Proteins. IG® C43pLysS(DE3) Chemically Competent Cells are designed for high-efficiency transformation and stable expression of toxic or difficult proteins in IPTG-inducible T7 systems. Derived from BL21(DE3), this strain improves tolerance to toxic proteins, while the pLysS plasmid suppresses basal expression to stabilize challenging constructs. Custom formats, custom package sizes and bulk pricing are available upon request.
