Competent Cells
MilliporeSigma™ Novagen™ Tuner™ Competent Cell Set
Tuner™ strains are lacZY deletion mutants of BL21 and enable adjustable levels of protein expression throughout all cells in a culture.
Invitrogen™ MultiShot™ StripWell DH5α T1R Competent Cells
MultiShot StripWell DH5α T1R chemically competent E. coli cells are cloning competent cells packaged in a rack containing 12 strips of 8 tubes to increase productivity for medium-throughput bacterial transformations.
Invitrogen™ One Shot™ BL21(DE3)pLysE Chemically Competent E. coli
One Shot BL21(DE3)pLysE Chemically Competent E. coli cells are ideal for use with bacteriophage T7 promoter-based expression systems such as pRSET and pET.
Invitrogen™ TOP10 Electrocomp™ Kit
TOP10 Electrocomp E. coli cells are provided at a transformation efficiency of 1 x 1010 cfu/μg supercoiled DNA and are ideal for high-efficiency cloning and plasmid propagation.
MilliporeSigma™ Novagen™ Rosetta™ 2 Competent Cell Set
Rosetta strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. Contains the pLacI plasmid producing extra Lac repressor.
MilliporeSigma™ Novagen™ BL21 Competent Cell Set
BL21 is the most widely used host background and has the advantage of being deficient in both lon (1) and ompT proteases.
MilliporeSigma™ Novagen™ Rosetta™ (DE3) 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™ NovaBlue Competent Cells
NovaBlue is a K-12 strain ideally suited as an initial cloning host due to its high transformation efficiency, blue/white screening capability (with appropriate plasmids) and recA endA mutations.
MilliporeSigma™ Novagen™ HMS174 (DE3) pLysS Competent Cells
HMS174 strains provide high transformation efficiencies and the recA mutation in a K-12 background. T7 lysozyme expression suppresses basal T7 expression.
MilliporeSigma™ Novagen™ Veggie BL21 (DE3) Singles™ Competent Cells
Protease-deficient hosts (BL21) for protein expression; Manufactured free of animal-derived media and components
Invitrogen™ One Shot™ INVαF' Chemically Competent E. coli
One Shot INVαF' Chemically Competent E. coli are designed to stably replicate high-copy number plasmids.
MilliporeSigma™ Novagen™ NovaBlue Competent Cells
NovaBlue is a K-12 strain ideally suited as an initial cloning host due to its high transformation efficiency, blue/white screening capability (with appropriate plasmids) and recA endA mutations.
MilliporeSigma™ Novagen™ Rosetta™ Blue Competent Cells
RosettaBlue host strains are NovaBlue derivatives that combine high transformation efficiency and with enhanced expression of eukaryotic proteins that contain codons rarely used in E. coli.
MilliporeSigma™ Novagen™ DE3 Competent Cell Set
For Protein Expressions
MilliporeSigma™ Novagen™ Rosetta-gami™ 2 Competent Cell Set
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.