Competent Cells
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.
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™ 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™ 2 (DE3) 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.
Invitrogen™ MultiShot™ StripWell TOP10 Chemically Competent E. coli
MultiShot StripWell TOP10 Chemically Competent E. coli cells are ideal for high-efficiency cloning and plasmid propagation, achieving a transformation efficiency of >1 x 108 cfu/μg with control plasmid DNA in StripWell format.
MilliporeSigma™ Novagen™ DE3 Competent Cell Set
For Protein Expressions
Invitrogen™ MultiShot™ StripWell Mach1™ T1 Phage-Resistant Chemically Competent E. coli
MultiShot StripWell Mach1 T1R chemically competent E. coli cells are exceptionally fast-growing cloning competent cells packaged in a rack containing 12 strips of 8 tubes for increased productivity of bacterial transformations.
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 BL21 (DE3) Electro Competent Cells
BL21 (DE3) Electro competent cells are a widely used E. coli strain.
G-Biosciences 10B Electro Competent Cells
G-Biosciences 10B Electro 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.
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G-Biosciences BL21 (DE3) Chemically Competent Cells
BL21 (DE3) Chemically competent cells are a widely used E. coli strain.
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.