accessibility menu, dialog, popup

UserName
Viewing profile as user:

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.
Format 
  • (5)
  • (13)
  • (1)
  • (1)
  • (47)
  • (2)
  • (13)
Species 
  • (26)
  • (8)
  • (39)
  • (3)
  • (3)
Promoter 
  • (2)
  • (8)
  • (2)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

category

special offers

  • (60)

brands

  • (8)
  • (1)
  • (1)
  • (2)
  • (1)
  • (7)
  • (4)
  • (1)
  • (1)
  • (1)
  • (7)
  • (1)
  • (7)
  • (6)
  • (1)
  • (2)
  • (1)
  • (1)
  • (12)
  • (1)
  • (4)
  • (1)
  • (164)
  • (1)
  • (66)
  • (1)
  • (1)
  • (5)
  • (112)
  • (3)
  • (1)
  • (25)
  • (1)
  • (3)
  • (2)
  • (2)
  • (1)
  • (2)
  • (1)
  • (4)
  • (4)
  • (1)
  • (1)
  • (13)

special interests

  • (9)
  • (41)
  • (2)
  • (1)
  • (38)

Format

  • (5)
  • (13)
  • (1)
  • (1)
  • (47)
  • (2)
  • (13)

Species

  • (26)
  • (8)
  • (39)
  • (3)
  • (3)

Promoter

  • (2)
  • (8)
  • (2)

Search Within Results
Keyword Search:
106 – 120 of 568 results
107

MilliporeSigma™ Novagen™ Tuner™ Competent Cells

Tuner host strains are lacZY deletion mutants of BL21, which enable adjustable levels of protein expression throughout all cells in a culture.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
108
Promotions Available

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.

ENCOMPASS_PREFERRED
109
Promotions Available

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

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.

ENCOMPASS_PREFERRED
110

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.

112

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

Rosetta-gami B strains combine the key features of BL21, Origami, and Rosetta to enhance both the expression of eukaryotic proteins and the formation of target protein disulfide bonds.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1 x 108 cfu/μg
113

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
114

MilliporeSigma™ Novagen™ Veggie NovaBlue Singles™ Competent Cells

Produces high-quality plasmid DNA

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1.5 x 108 cfu/μg
115

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

Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. T7 lysozyme expression suppresses basal T7 expression.

Content And Storage ≤-70°C
116

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
117
Promotions Available

Invitrogen™ One Shot™ TOP10F' Chemically Competent E. coli

One Shot TOP10F' Chemically Competent E. coli are identical to TOP10 cells, with the addition of an F' episome.

ENCOMPASS_PREFERRED
Shipping Condition Dry Ice
Blue/White Screening Yes (lacZΔM15)
Cloning Unstable DNA Not suitable for cloning unstable DNA
Cloning Methylated DNA Yes (mcrA)
Transformation Efficiency Level High Efficiency (>1 x 109 cfu/μg)
High-throughput Compatibility Low
Improves Plasmid Quality Yes (endA1)
Promoter Trc, Tac, Lac
Preparing Unmethylated DNA No
Reduces Recombination Yes (recA1)
T1 Phage - Resistant (tonA) No
Antibiotic Resistance Bacterial Yes (Streptamycin, Tetracycline)
Format Tube
Product Type Chemically Competent Cells
Species E. coli (K12)
Product Line One Shot
Contains F' Episome Yes
118

MilliporeSigma™ Novagen™ HMS174 Competent Cell Set

HMS174 strains provide the recA mutation in a K-12 background.

119

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.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
120

MilliporeSigma™ Novagen™ NovaBlue Singles™ Competent Cells
GSA_VA

NovaBlue Singles Competent Cells are designed for ultimate convenience and reliability in plasmid transformation.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >1.5 x 108 cfu/μg