Competent Cells
Invitrogen™ MultiShot™ StripWell BL21 Star™ (DE3) Competent Cells
MultiShot StripWell BL21 Star (DE3) chemically competent E. coli cells are cloning competent cells designed for applications that require high-level expression of non-toxic recombinant proteins from low copy number, T7 promoter-based expression systems.
Invitrogen™ MultiShot™ FlexPlate Mach1™ T1R Competent Cells
MultiShot FlexPlate Mach1 T1R chemically competent E. coli cells are exceptionally fast-growing cloning competent cells pre-aliquoted in a 96-well PCR plate to increase transformation productivity.
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™ Rosetta-gami™ B (DE3) pLysS Competent Cells
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.
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™ NovaBlue Singles™ Competent Cells
NovaBlue Singles Competent Cells are designed for ultimate convenience and reliability in plasmid transformation.
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.
New England Biolabs, Inc. NEB® 5-alpha Competent E. coli (High Efficiency) – 20 x 0.05 ml/tube
NEB 5-alpha Competent E. coli (High Efficiency) is a derivative of the popular DH5. It is T1 phage resistant and endA deficient for high-quality plasmid preparations.
- High efficiency strain ideal for a wide variety of applications
- In a wide variety of sizes, including single-use vials, 200 µl vials, 96- and 384-well plates
- No dry ice surcharge on competent cell shipments
- Outgrowth medium included
- Free of animal products
Promega Bacterial Strain JM109
Useful host for transformation of pGEM Vectors and production of ssDNA from M18 or phagemid vectors. JM109 is recA- and lacks the E. coli K restriction system. Can be used for blue/white screening.
Promega Bacterial Strain JM109(DE3)
Used for high-level expression of genes cloned into vectors for expression of sequence downstream from the T7 promoter, if the sequence contains a ribosomal binding site. No blue/white selection.
G-Biosciences 5-alpha Electro Competent Cells
5-alpha Electro competent cells are a derivative of the popular DH5a.
G-Biosciences 10B Chemically Competent Cells
G-Biosciences 10B Chemically Competent E. coli is a derivative of the popular DH10B.
G-Biosciences 5-alpha Chemically Competent Cells
5-alpha Chemically competent cells are a derivative of the popular DH5a.
G-Biosciences 10B Electro Competent Cells
G-Biosciences 10B Electro Competent E. coli is a derivative of the popular DH10B.
G-Biosciences BL21 (DE3) Electro Competent Cells
BL21 (DE3) Electro competent cells are a widely used E. coli strain.