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Competent Cells

Chemically modified bacterial cells capable of uptaking DNA from the environment via transformation. Competent cultures of E. coli are used in the lab for various procedures including cloning, protein expression, and genetic library creation.
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91 – 105 of 402 results
91

MilliporeSigma™ Novagen™ HT96™ NovaBlue Competent Cells

High-efficiency competent cells predispensed in 96-well plate for high-throughput applications

Content And Storage Store HT96 Competent Cells, SOC Medium and Test Plasmid at -70°C or below. Store Cap Strips, Plate Lids and Reagent Reservoirs at room temperature
Efficiency > 1 x 108CFU/μg
For Use With (Application) For high-throughput transformation
92

MilliporeSigma™ Novagen™ HMS174 (DE3) Competent Cells

HMS174 strains provide high transformation efficiencies and the recA mutation in a K-12 background. Strain may stabilize certain target genes whose products may cause the loss of the DE3 prophage.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >5 x 106 cfu/μg
93

Invitrogen™ MultiShot™ FlexPlate OmniMAX™ 2 T1R Competent Cells

MultiShot FlexPlate OmniMAX 2 T1R chemically competent E. coli cells are a superior strain of cloning competent cells that are pre-aliquoted in a 96-well PCR plate to increase transformation productivity.

ENCOMPASS_PREFERRED
94

MilliporeSigma™ Novagen™ Origami™ 2 Competent Cell Set

Origami 2 strains have mutations in glutathione reducatase (gor) and thioredoxin reductase (trxB), facilitating proper disulfide bond formation.

96

MilliporeSigma™ Novagen™ NovaBlue GigaSingles™ Competent Cells
GSA_VA

NovaBlue GigaSingles™ Competent Cells produce greater than 1 x 10⁹ colonies/μg plasmid DNA for cloning applications requiring high-efficiency transformations.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1 x 109 cfu/μg
97

MilliporeSigma™ Novagen™ Rosetta™ (DE3) pLacI Competent Cells

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.

Content And Storage ≤-70°C
98

MilliporeSigma™ Novagen™ Rosetta-gami™ 2 Competent Cells

Rosetta-Gami 2 host strains allows for enhanced disulfide bond formation and enhanced expression of eukaryotic proteins that contain codons rarely used in E. coli.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
99

MilliporeSigma™ Novagen™ Rosetta™ 2(DE3)pLysS Singles™ Competent Cells
GSA_VA

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.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
100

MilliporeSigma™ Novagen™ HT96™ BL21(DE3) Competent Cells

High-efficiency competent cells predispensed in 96-well plate for high-throughput applications

Content And Storage Store HT96 Competent Cells, SOC Medium and Test Plasmid at -70°C or below. Store Cap Strips, Plate Lids and Reagent Reservoirs at room temperature
Efficiency > 2 x 106CFU/μg
For Use With (Application) For high-throughput transformation
101

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.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
102

MilliporeSigma™ Novagen™ Origami™ 2 Competent Cells

Origami 2 strains have mutations in glutathione reducatase (gor) and thioredoxin reductase (trxB), facilitating proper disulfide bond formation.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
103

MilliporeSigma™ Novagen™ Rosetta-gami™ 2 (DE3) pLysS Competent Cells

Rosetta-Gami 2 host strains allows for enhanced disulfide bond formation and enhanced expression of eukaryotic proteins. T7 lysozyme expression suppresses basal T7 expression.

104

MilliporeSigma™ Novagen™ Origami™ 2(DE3) Singles™ Competent Cells

Origami 2 strains have mutations in glutathione reducatase (gor) and thioredoxin reductase (trxB), facilitating proper disulfide bond formation.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: 2 x 106 cfu/μg
105

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.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg