Competent Cells

Competent Cells

Cell competence refers to the ability of a cell to take up extracellular DNA from the environment via transformation. These products include competent cells for subcloning, protein expression, and genetic library creation.
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1-15 of 60 Products

DH5α Competent Cells Thermo Scientific™

Thermo Scientific DH5α Competent Cells are high efficiency, chemically competent E. coli cells ideal for construction of gene banks or generation of cDNA libraries using plasmid-derived vectors. The φ80dlacZΔM15 marker provides α-complementation of the β-galactosidase gene from pUC or similar...

One Shot™ TOP10 Chemically Competent E. coli Invitrogen™

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. These cells allow stable replication of high-copy number plasmids and are the same competent cells that come...

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

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...

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

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.

Subcloning Efficiency™ DH5α Competent Cells Invitrogen™

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. Subcloning Efficiency DH5α Competent Cells are an economical solution for routine subcloning procedures or any general...

MAX Efficiency™ DH10B Competent Cells Invitrogen™

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, making them ideal for...

MAX Efficiency™ DH5α Competent Cells Invitrogen™

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...

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

One Shot BL21(DE3)pLysS Chemically Competent E. coli cells are ideal for use with bacteriophage T7 promoter-based expression systems such as pRSET and pET. The pLysS plasmid carried by the BL21(DE3) pLysS strain produces T7 lysozyme, an inhibitor of T7 RNA polymerase, to reduce basal level...

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

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. This strain had been engineered to carry the λDE3 lysogen that contains T7 RNA polymerase gene under control of the lacUV5 promoter.

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

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.

One Shot™ TOP10 Electrocomp™ E. coli Invitrogen™

One Shot TOP10 Electrocomp E. coli cells are ideal for high-efficiency cloning and plasmid propagation. Provided at a transformation efficiency of >1 x 1010 cfu/ μg supercoiled DNA, these cells allow for stable replication of high copy number plasmids. TOP10 Electrocomp E.

FreeStyle™ 293 Expression Medium Gibco™ Green features

FreeStyle™ 293 Expression Medium is an animal origin–free, chemically defined, protein-free medium specifically developed to support the growth and transfection of 293-F cells in suspension without adaptation. The medium is complete and ready-to-use, with no supplementation required.

DH5α Competent Cells for Subcloning Thermo Scientific™

Thermo Scientific DH5α Competent Cells for Subcloning are chemically competent E. coli cells recommended for routine subcloning into plasmid vectors. Subcloning efficiency cells are not suitable for the generation of cDNA libraries.

Tali™ Viability Kit - Dead Cell Red Invitrogen™

The Tali™ Viability Kit - Dead Cell Red is a ready-to-use solution of propidium iodide (PI) that has been validated for use with the Tali™ Image-Based Cytometer. PI is a live cell-impermeant fluorogenic DNA-binding dye that has been extensively used to identify necrotic cells.

MAX Efficiency™ DH5αF´IQ Competent Cells Invitrogen™

MAX Efficiency DH5αF´IQ Competent Cells are high transformation efficiency chemically competent cells prepared by a patented modification of the procedure of Hanahan. This strain is a derivative of the DH5α strain, sharing the same benefits.
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