MilliporeSigma
All Photos(1)

70956-M

Sigma-Aldrich

Rosetta(DE3)pLysS Competent Cells - Novagen

Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. T7 lysozyme expression suppresses basal T7 expression.

All Photos(1)

Recommended Products

Slide 1 of 10

1 of 10

Rosetta(DE3) Competent Cells - Novagen Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Sigma-Aldrich

70954

Rosetta(DE3) Competent Cells - Novagen

Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Rosetta 2(DE3)pLysS Competent Cells - Novagen Novagen′s Rosetta 2 (pLysS) host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli along with T7 lysozyme activity.

Sigma-Aldrich

71403-M

Rosetta 2(DE3)pLysS Competent Cells - Novagen

Novagen′s Rosetta 2 (pLysS) host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli along with T7 lysozyme activity.

Rosetta 2(DE3)pLysS Singles Competent Cells - Novagen Novagen′s Rosetta 2 (pLysS) host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli along with T7 lysozyme activity.

Sigma-Aldrich

71401-M

Rosetta 2(DE3)pLysS Singles Competent Cells - Novagen

Novagen′s Rosetta 2 (pLysS) host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli along with T7 lysozyme activity.

Rosetta 2(DE3) Competent Cells - Novagen Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Sigma-Aldrich

71397

Rosetta 2(DE3) Competent Cells - Novagen

Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

OverExpress™ C43(DE3) Chemically Competent Cells for the highest protein expression

Sigma-Aldrich

CMC0019

OverExpress™ C43(DE3) Chemically Competent Cells

for the highest protein expression

BL21(DE3) Competent Cells - Novagen 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.

Sigma-Aldrich

69450-M

BL21(DE3) Competent Cells - Novagen

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.

Rosetta 2(DE3) Singles Competent Cells - Novagen Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Sigma-Aldrich

71400-M

Rosetta 2(DE3) Singles Competent Cells - Novagen

Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Rosetta-gami B(DE3)pLysS Competent Cells - Novagen Rosetta-gami B strains combines the key features of BL21, Origami, and Rosetta to enhances the expression of eukaryotic proteins. T7 lysozyme expression suppresses basal T7 expression.

Sigma-Aldrich

71137

Rosetta-gami B(DE3)pLysS Competent Cells - Novagen

Rosetta-gami B strains combines the key features of BL21, Origami, and Rosetta to enhances the expression of eukaryotic proteins. T7 lysozyme expression suppresses basal T7 expression.

BL21(DE3) Chemically Competent Cells for protein expression

Sigma-Aldrich

CMC0014

BL21(DE3) Chemically Competent Cells

for protein expression

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.

Sigma-Aldrich

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.

Quality Level

100

manufacturer/tradename

Novagen®

storage condition

OK to freeze

storage temp.

−70°C

Related Categories

General description

Genotype: F-ompT hsdSB(rB- mB-) gal dcm (DE3) pLysSRARE (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.
Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. These strains supply tRNAs for AGG, AGA, AUA, CUA, CCC, GGA codons on a compatible chloramphenicol-resistant plasmid. Thus the Rosetta strains provide for “universal” translation which is otherwise limited by the codon usage of E. coli. The tRNA genes are driven by their native promoters. In Rosetta(DE3)pLysS, the rare tRNA genes are present on the same plasmids that carries the T7 lysozyme gene.

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.
Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. T7 lysozyme expression suppresses basal T7 expression.

Packaging

1 ml in Glass bottle
0.4 ml in Plastic ampoule

Components

0.4 ml1 mlComponent

•2 × 0.2 ml5 × 0.2 mlRosetta(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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service