CMC0018
OverExpress™ C41(DE3) pLysS Chemically Competent Cells
Escherichia coli, rod shaped
Sinônimo(s):
Chemically competent cells
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About This Item
Código UNSPSC:
41106202
NACRES:
NA.85
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Nome do produto
OverExpress™ C41(DE3) pLysS Chemically Competent Cells, for the highest protein expression
fonte biológica
Escherichia coli
grau
Molecular Biology
for molecular biology
modo de crescimento
adherent or suspension
morfologia
rod shaped
técnica(s)
microbiological culture: suitable
transformação celular
competent cell type: chemically competent
transformation efficiency: ≥1 x 106 cfu/μg
Condições de expedição
dry ice
temperatura de armazenamento
−70°C
Descrição geral
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)
Genotype
F – ompT hsdSB (rB- mB-) gal dcm (DE3) pLysS (CmR)
Características e benefícios
- Express genes cloned into any T7 vector with these BL21(DE3) derivatives
- Effective in expressing toxic & membrane proteins
- Cited in over 350 research articles
Componentes
- OverExpress C41(DE3) pLysS chemically competent cells
- pUC 19 transformation control DNA
- recovery medium for expression
Informações legais
OverExpress is a trademark of Imaxio, S.A.
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Protocolos
Protocol for OverExpress™ Chemically Competent Cells. Product Numbers: CMC0017, CMC0018, CMC0019, CMC0020, CMC0023, CMC0024
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