69451-M
BL21(DE3)pLysS Competent Cells - Novagen
BL21 host strain that expresses T7 RNA polymerase and also encode T7 lysozyme that suppresses basal expression of toxic target proteins prior to induction.
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About This Item
UNSPSC Code:
41106202
Recommended Products
biological source
Escherichia coli
Quality Level
manufacturer/tradename
Novagen®
storage condition
OK to freeze
avoid repeated freeze/thaw cycles
growth mode
adherent or suspension
morphology
rod shaped
technique(s)
microbiological culture: suitable
cell transformation
transformation efficiency: >2×107 cfu/μg
shipped in
dry ice
storage temp.
−70°C
Related Categories
General description
Genotype: F-ompT hsdSB(rB- mB-) gal dcm (DE3) pLysS (CamR)
This product contains genetically modified organisms (GMO). Within the EU GMOs are regulated by Directives 2001/18/EC and 2009/41/EC of the European Parliament and of the Council and their national implementation in the member States respectively. This legislation obliges us to request certain information about you and the establishment where the GMOs are being handled. Click here for Enduser Declaration (EUD) Form.
This product contains genetically modified organisms (GMO). Within the EU GMOs are regulated by Directives 2001/18/EC and 2009/41/EC of the European Parliament and of the Council and their national implementation in the member States respectively. This legislation obliges us to request certain information about you and the establishment where the GMOs are being handled. Click here for Enduser Declaration (EUD) Form.
BL21 strains are the most widely used hosts for protein expression from pET recombinants and have the advantage of being deficient in both lon and ompT proteases.
DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG.
pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability.
DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG.
pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability.
BL21 host strain that expresses T7 RNA polymerase and also encode T7 lysozyme that suppresses basal expression of toxic target proteins prior to induction.
Components
0.4 ml1 mlComponent
•2 × 0.2 ml5 × 0.2 mlBL21(DE3)pLysS Competent Cells
•2 × 2 ml4 × 2 mlSOC Medium
•2 ng2 ngTest Plasmid
•2 × 0.2 ml5 × 0.2 mlBL21(DE3)pLysS Competent Cells
•2 × 2 ml4 × 2 mlSOC Medium
•2 ng2 ngTest Plasmid
Warning
Toxicity: Multiple Toxicity Values, refer to MSDS (O)
Legal Information
NOVAGEN is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
10 - Combustible liquids
WGK
WGK 2
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