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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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1

MilliporeSigma™ Novagen™ Rosetta™ 2 (DE3) Singles 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
2

Invitrogen™ One Shot™ PIR1 Chemically Competent E. coli  DFS Item

One Shot PIR1 Chemically Competent E. coli cells are for use with vectors that contain the R6Kγ origin of replication (e.g., pUni/V5-His-TOPO for recombination with an Echo cloning system).

3

Invitrogen™ MultiShot™ FlexPlate DH5α T1R Competent Cells  DFS Item

MultiShot FlexPlate DH5α T1R Chemically Competent E. coli cells are cloning competent cells derived from a well-known, versatile DH5α strain that can be used in many everyday cloning applications.

4

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
5

Invitrogen™ TOP10F' Electrocomp™ Kit  DFS Item

TOP10F' Electrocomp Kit E. coli cells are identical to TOP10 cells, with the addition of an F' episome.

6

Invitrogen™ One Shot™ INV110 Chemically Competent E. coli  DFS Item

One Shot INV110 Chemically Competent E. coli cells are derived from the JM110 strain and are specifically designed for the growth and purification of plasmid DNA that will be digested with dam or dcm methylation-sensitive restriction enzymes.

7

MilliporeSigma™ Novagen™ Rosetta™ 2(DE3)pLysS Singles™ 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
8

Invitrogen™ MultiShot™ FlexPlate TOP10 Competent Cells  DFS Item

MultiShot FlexPlate TOP10 chemically competent E. coli cells are cloning competent cells that are pre-aliquoted in a 96-well PCR plate to increase transformation productivity.

9

Invitrogen™ One Shot™ MAX Efficiency™ DH10B T1 Phage-Resistant Cells  DFS Item

One Shot MAX Efficiency DH10B T1 Phage-Resistant E. coli have all the benefits of the DH10B genotype, with the addition of the tonA (also known as fhuA) genotype for resistance to T1 and T5 phage infection.

10

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.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1 x 106 cfu/μg
11

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.

12

Invitrogen™ MultiShot™ FlexPlate OmniMAX™ 2 T1R Competent Cells  DFS Item

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.

13

Invitrogen™ Tali™ Calibration Beads  DFS Item

Align and calibrate Tali™ Image-Based Cytometer every three months

14

Invitrogen™ MultiShot™ StripWell Stbl3™ Competent Cells  DFS Item

MultiShot StripWell Stbl3 Chemically Competent E. coli cells are cloning competent cells designed for cloning direct repeats found in lentiviral expression vectors.

15

Invitrogen™ MultiShot™ Mach1™ T1R Chemically Competent E. coli Cells, 96-well plate

MultiShot Mach1™ T1R Chemically Competent E. coli Cells enable rapid, high-efficiency cloning in an automation-ready 96-well format. Fast-growing and phage-resistant, these cells support same-day transformation and streamlined high-throughput workflows.