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位置:首页 > 品牌 > Sigma-Aldrich > OverExpressTM C41(DE3) pLysS Chemically Competent Cells

OverExpressTM C41(DE3) pLysS Chemically Competent Cells

品牌
Sigma-Aldrich
货号
CMC0018
规格纯度
for the highest protein expression
参考价格
8501.89 *本价格含增值税费
促销
服务
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  • 增值税票
数量
-+
产品名称:
OverExpressTM C41(DE3) pLysS Chemically Competent Cells
产品介绍:

产品说明

一般描述

OverExpress Electrocompetent and Chemically Competent Cells are E. coli strains that are effective in expressing toxic proteins from all classes of organisms, including eubacteria, yeasts, plants, viruses, and mammals. The effectiveness of these new strains in expressing toxic proteins has been validated in more than 350 publications. 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 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). OverExpress C41(DE3)pLysS and C43(DE3)pLysS also carry a chloramphenicol-resistant plasmid that encodes T7 lysozyme, which is a natural inhibitor of T7 RNA polymerase. Cells containing pLysS produce a small amount of T7 lysozyme. These strains are used to suppress basal expression of T7 RNA polymerase prior to induction, thus stabilizing recombinants encoding particularly toxic proteins.

Genotype

F – ompT hsdSB (rB- mB-) gal dcm (DE3) pLysS (CmR)

特点和优势

  • Express genes cloned into any T7 vector with these BL21(DE3) derivatives
  • Effective in expressing toxic & membrane proteins
  • Cited in over 350 research articles

组分

  • OverExpress C41(DE3) pLysS chemically competent cells
  • pUC 19 transformation control DNA
  • recovery medium for expression


法律信息

OverExpress is a trademark of Imaxio, S.A.

基本信息

NACRESNA.85

产品性质

等级for molecular biology
细胞转化competent cell type: chemically competent
transformation efficiency: ≥1 x 106 cfu/μg
运输dry ice
储存温度−70℃

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 3

Sigma-Aldrich

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