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MilliporeSigma™ Novagen™ BL21(DE3) Competent Cells

Catalog No. 694504
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0.4 mL (2 x 0.2 mL aliquots)
1 mL (5 x 0.2 mL aliquots)
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Catalog No. Quantity
694504 1 mL (5 x 0.2 mL aliquots)
694503 0.4 mL (2 x 0.2 mL aliquots)
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Catalog No. 694504 Supplier MilliporeSigma™ Supplier No. 694504
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Description

Achieve greater efficiency, reproducibility and convenience with Novagen prepared competent cells. BL21(DE3) is a chemically competent E. coli cell suitable for transformation and high-level protein expression using a T7 RNA polymerase-IPTG induction system.

  • Deficient in Ion and ompT proteases, BL21 and its derivatives are ideal for many applications

    T7 expression strain
  • Lysogen of bacteriophage DE3
  • Carries copy of T7 RNA polymerase gene under control of the lacUV5 promoter
  • Suitable for production of protein from target genes cloned in appropriate T7 expression vectors, using IPTG as an inducer

Specifications

Efficiency Guaranteed efficiency: >2 x 107 cfu/μg
Content And Storage Store at ≤-70deg;C, Avoid repeated freeze/thaw
Quantity 1 mL (5 x 0.2 mL aliquots)