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Competent Cells

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 – 15 of 64 results
1

Invitrogen™ Subcloning Efficiency™ DH5α Competent Cells

Subcloning Efficiency DH5α Competent Cells are a versatile, chemically competent strain for cloning that provides a transformation efficiency of >1 x 106 cfu/μg plasmid DNA.

2

Invitrogen™ One Shot™ ccdB Survival™ 2 T1R Competent Cells

One Shot ccdB Survival 2 T1R Competent Cells are suitable for the propagation of plasmids containing the ccdB gene and are designed for use with the Gateway Vector Conversion System and for propagating Gateway destination, donor, and supercoiled entry vectors.

3

Invitrogen™ One Shot™ BL21(DE3) Chemically Competent E. coli

One Shot BL21(DE3) Chemically Competent E. coli cells are ideal for use with bacteriophage T7 promoter-based expression systems such as pRSET and pET.

4

Invitrogen™ MultiShot™ TOP10 Chemically Competent E. coli

MultiShot TOP10 Chemically Competent E. coli cells are derived from DH10B and are one of the most popular laboratory strains.

5

Thermo Scientific™ DH5α Competent Cells; High Efficiency

High efficiency, chemically competent E. coli cells ideal for construction of gene banks or generation of cDNA libraries using plasmid-derived vectors

6

Thermo Scientific™ BL21(DE3) Competent Cells

Suitable for the expression of non-toxic heterologous genes. The strain contains the lambda DE3 prophage that carries the gene for T7 RNA polymerase under control of a lacUV5 promoter, allowing expression of the T7 RNA polymerase to be induced with IPTG.

Promotions are available
7

Invitrogen™ One Shot™ Stbl3™ Chemically Competent E. coli

One Shot Stbl3 Chemically Competent E. coli are designed for cloning direct repeats found in lentiviral expression vectors as these cells reduce the frequency of homologous recombination of direct repeats found in lentiviral vectors (ViraPower Lentiviral Expression kits) and other retroviral vectors (instability-prone HIV-based plasmids).

8

Invitrogen™ One Shot™ TOP10 Chemically Competent E. coli

One Shot TOP10 Chemically Competent E. coli are ideal for high-efficiency cloning and plasmid DNA propagation and are provided at a transformation efficiency of 1 x 109 cfu/μg plasmid DNA.

EDGE
Shipping Condition Dry Ice
Blue/White Screening Yes (lacZΔM15)
Cloning Methylated DNA Yes (mcrA)
Transformation Efficiency Level High Efficiency (>1 x 109 cfu/μg)
High-throughput Compatibility Low
Improves Plasmid Quality Yes (endA1)
Preparing Unmethylated DNA No
Plasmid High Copy Plasmid
Reduces Recombination Yes (recA1)
T1 Phage - Resistant (tonA) No
Antibiotic Resistance Bacterial Yes (Streptomycin)
Format Tube
Product Type Chemically Competent Cells
Species E. coli (K12)
Product Line One Shot™
Contains F' Episome No
9

Thermo Scientific™ DH5α Competent Cells

Chemically competent E. coli cells recommended for routine subcloning into plasmid vectors. Subcloning efficiency cells are not suitable for the generation of cDNA libraries.

10

Invitrogen™ One Shot™ BL21 Star™ (DE3) Chemically Competent E. coli

One Shot BL21 Star (DE3) Chemically Competent E. coli are designed for applications that require high-level expression of non-toxic recombinant proteins from low copy number, T7-promoter-based expression systems such as Champion pET vectors.

EDGE
11

Invitrogen™ MAX Efficiency™ DH10Bac Competent Cells

Capable of supporting site-specific recombination between pFastBac™ and bMON14272

EDGE
12

Thermo Scientific™ DH10B Competent Cells; High Efficiency

High efficiency, chemically competent E. coli cells. The DH10B strain is suitable for cloning DNA containing methylcytosine, 5-hydroxymethylcytosine, and methyladenine, allowing both prokaryotic and eukaryotic genomic DNA to be cloned efficiently.

EDGE
13

Gibco™ FreeStyle™ CHO Expression Medium
GREENER_CHOICE

Animal origin-free, chemically defined, protein-free medium

Promotions are available
EDGE
Cell Line FreeStyle™ CHO-S Cells, CHO
Content And Storage Storage conditions: 2°C to 8°C. Protect from light
Shipping conditions: Ambient
Shelf life: 12 months from date of manufacture
Form Liquid
Product Type Expression Medium
Endotoxin Level ≤0.25 EU/mL, ≤ 0.25 EU/mL
Classification Chemically Defined, Protein-Free, Serum-Free
Culture Type Suspension Cell Culture
Phenol Red Indicator No Phenol Red
Product Line Freestyle™, Gibco™
Serum Level Serum-Free
Glutamine No Glutamine
14

Invitrogen™ MegaX DH10B T1R Electrocomp™ Cells

MegaX DH10B T1R Electrocomp Cells are the highest-efficiency electrocompetent cells available. Improved production processes provide a transformation efficiency reaching >3 x 1010 cfu/μg of pUC DNA.

EDGE
15

Invitrogen™ Library Efficiency™ DH5α Competent Cells

Library Efficiency DH5α Competent Cells are a versatile strain of chemically competent cells that are used in many everyday cloning applications.

EDGE