accessibility menu, dialog, popup

UserName

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)
  • (46)
  • (2)
  • (13)
Species 
  • (26)
  • (8)
  • (38)
  • (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

brands

  • (12)
  • (4)
  • (65)
  • (42)
  • (2)
  • (4)

special interests

  • (2)

Format

  • (5)
  • (13)
  • (1)
  • (1)
  • (46)
  • (2)
  • (13)

Species

  • (26)
  • (8)
  • (38)
  • (3)
  • (3)

Promoter

  • (2)
  • (8)
  • (2)

Search Within Results
Keyword Search:
1 – 15 of 99 results
1

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.

2

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.

3

Invitrogen™ One Shot™ TOP10/P3 Chemically Competent E. coli  DFS Item

One Shot TOP10/P3 Chemically Competent E. coli cells are designed for vector transformation encoding the synthetic supF gene (tyrosine tRNA suppressor) and allow high-quality pCDM8, pcDNA1.1 plasmid, or any other supF-containing vector preparation.

4

Invitrogen™ One Shot™ TOP10 Chemically Competent E. coli  DFS Item

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.

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
5

Invitrogen™ MAX Efficiency™ Stbl2™ Competent Cells  DFS Item

MAX Efficiency Stbl2 Competent Cells are high-efficiency chemically competent cells specifically designed for cloning unstable inserts.

6

Invitrogen™ ElectroMAX™ DH10B Cells  DFS Item

ElectroMAX DH10B Cells are electrocompetent E. coli cells offering the highest transformation efficiencies of >1 x 1010 cfu/μg plasmid DNA.

7

MilliporeSigma™ Annexin V-PE Apoptosis Detection Kit

Identifies phosphatidylserine (PS) that translocates from cytoplasmic face of plasma membrane to cell surface during apoptosis.

8

Invitrogen™ MAX Efficiency™ DH10B Competent Cells  DFS Item

MAX Efficiency DH10B Competent Cells are highly efficient E. coli suitable for a variety of molecular biology applications. This strain is one of the most commonly used strains for everyday applications due to key strain features such as high transformation efficiency.

9

MilliporeSigma™ Novagen™ Tuner™ DE3 pLysS Competent Cells

Tuner host strains are lacZY deletion mutants of BL21, which enable adjustable levels of protein expression throughout all cells in a culture. T7 lysozyme expression suppresses basal T7 expression.

Content And Storage ≤-70°C
Efficiency Guaranteed efficiency: >2 x 106 cfu/μg
10

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

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.

11

Invitrogen™ One Shot™ INVαF' Chemically Competent E. coli  DFS Item

One Shot INVαF' Chemically Competent E. coli are designed to stably replicate high-copy number plasmids.

12

Invitrogen™ Subcloning Efficiency™ DH5α Competent Cells  DFS Item

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.

13

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.

14

Gibco™ FreeStyle™ CHO Expression Medium  DFS Item
GREENER_CHOICE

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

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
15

Invitrogen™ MAX Efficiency™ DH5α Competent Cells  DFS Item

MAX Efficiency™ DH5α Competent Cells are a well-known, versatile strain that is used in many everyday cloning applications. Prepared by a proprietary modification of the Hanahan method, these cells are suitable for high efficiency transformations in applications where low amount of DNA is used or to construct libraries using plasmid-derived vectors.