OverExpress C41(DE3)

OverExpress™ C41(DE3) and C43(DE3) Competent Cells


  • Express genes cloned into any T7 vector with these BL21(DE3) derivatives
  • Effective in expressing toxic & membrane proteins
  • Cited in over 350 research articles
Each OverExpress kit contains Electrocompetent or Chemically Competent Cells in SOLO packaging (1 transformation per tube), Expression Recovery Medium (lactose minus), pUC19 Positive Control Plasmid, pAVD10 Verification Plasmid, and complete protocols. ComboPacks contain 3 reactions each of C41(DE3), C43(DE3), C41(DE)pLysS, and C43(DE3)pLysS, as either electrocompetent or chemically competent cells, as indicated.

Important Product Use Information
OverExpress Cells are licensed exclusively to Lucigen Corporation by Imaxio S.A. under US Pat. 6,361,966 and others. Purchase of OverExpress Cells is accompanied by a non-exclusive, non-transferable license for research use only.Commercial use requires a separate license available from Imaxio S.A. 

OverExpress Cells are also sold under a license issued to Lucigen Corporation by Brookhaven Science Associates, LLC (BSA) for research use by noncommercial entities. Commercial entities require a license from BSA even for research use.