Competent Cells
MilliporeSigma™ Novagen™ Rosetta™ 2 Competent Cells
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.
MilliporeSigma™ Novagen™ Origami™ 2 Competent Cells
Origami 2 strains have mutations in glutathione reducatase (gor) and thioredoxin reductase (trxB), facilitating proper disulfide bond formation.
MilliporeSigma™ Novagen™ Rosetta-gami™ 2 (DE3) pLacI Competent Cells
Rosetta-Gami 2 strains allows for enhanced disulfide bond formation and enhanced expression of eukaryotic proteins. Contains the pLacI plasmid producing extra Lac repressor.
MilliporeSigma™ Novagen™ Origami™ B (DE3) pLysS Competent Cells
Origami B host strain derived from a lacZY mutant of BL21 to enable precise control of expression levels using IPTG. T7 lysozyme expression suppresses basal T7 expression.
MilliporeSigma™ Novagen™ Origami™ B Competent Cells
Origami B host strains carry the same mutations as the original Origami strain, except that they are derived from a lacZY mutant of BL21 to enable precise control of expression levels using IPTG.
MilliporeSigma™ Novagen™ HMS174 Competent Cell Set
HMS174 strains provide the recA mutation in a K-12 background.
MilliporeSigma™ Novagen™ NovaBlue T1R Singles™ Competent Cells
Featuring T1 and T5 phage resistance
MilliporeSigma™ Novagen™ DE3 pLysS Competent Cell Set
For Protein Expressions
MilliporeSigma™ Novagen™ NovaBlue GigaSingles™ Competent Cells
NovaBlue GigaSingles™ Competent Cells produce greater than 1 x 10⁹ colonies/μg plasmid DNA for cloning applications requiring high-efficiency transformations.
MilliporeSigma™ Novagen™ Tuner™ Competent Cells
Tuner host strains are lacZY deletion mutants of BL21, which enable adjustable levels of protein expression throughout all cells in a culture.
MilliporeSigma™ Novagen™ Rosetta-gami™ B (DE3) pLacI Competent Cells
Rosetta-gami B strains combine the key features of BL21, Origami, and Rosetta to enhance the expression of eukaryotic proteins. Contains the pLacI plasmid producing extra Lac repressor.
MilliporeSigma™ Novagen™ RosettaBlue™ (DE3)pLysS Competent Cells
RosettaBlue host strains combine high transformation efficiency with enhanced expression of eukaryotic proteins. T7 lysozyme expression suppresses basal T7 expression.
MilliporeSigma™ Novagen™ Veggie NovaBlue Singles™ Competent Cells
Produces high-quality plasmid DNA
MilliporeSigma™ Novagen™ Rosetta™ Competent Cells
Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.
MilliporeSigma™ Novagen™ BL21(DE3) Singles™ Competent Cells
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.