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These BL21(DE3) Chemically Competent E. coli Cells offer high transformation efficiency and reliable performance for cloning and recombinant protein production. They are optimized for T7-based expression systems and are suitable for transformation and routine protein expression.
High transformation efficiency
Excellent performance for protein expression
Custom formats available: tubes, 96-well plates, and 384-well plates
Flexible solutions for high-throughput workflows
Widely used host background
T7 expression strain
Deficient in both lon and ompT proteases
Resistant to phage T1 (fhuA2)
B strain
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More
Intact Genomics (IG™) BL21(DE3) Chemically Competent Cells offer high transformation efficiency and reliable performance for cloning and recombinant protein production. They are optimized for T7-based expression systems and provide consistent results. Intact Genomics chemically competent BL21(DE3) E. coli cells are suitable for transformation and routine protein expression.
High transformation efficiency
Excellent performance for protein expression
Custom formats available: tubes, 96-well plates, and 384-well plates
Flexible solutions for high-throughput workflows
Widely used host background
T7 Expression Strain
Deficient in both lon and ompT proteases
Resistant to phage T1 (fhuA2)
B Strain
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More
Intact Genomics BL21(DE3) Chemically Competent E. coli Cells are suitable for transformation and routine protein expression.
BL21(DE3) Chemically Competent Cells have the following features: Widely used host background T7 Expression Strain Deficient in both lon (1) and ompT proteases Resistant to phage T1 (fhuA2) B Strain
Product Includes and Storage: BL21(DE3) Competent Cells: -80 ºC pUC19 Control DNA: -20 ºC Recovery Medium: 4 ºC
Encompass Procurement Services Non-distribution item offered as a customer accommodation; additional freight charges may apply. Learn More