You Searched For: Competent Cells

Competent cells are those that have had their cell walls altered to render it easier to incorporate foreign DNA into their interiors. Cells are made competent by a process that uses calcium chloride and heat shock, and cells that are undergoing very rapid growth are made competent more easily than cells in other stages of growth. Factors such as transformation efficiency, genetic markers, and packaging formats will impact the time and effort required for your project, and so too its success. Choose from a number of cell types and formats to ensure optimal function.

Competent cells are those that have had their cell walls altered to render it easier to incorporate foreign DNA into their interiors. Cells are made competent by a process that uses calcium chloride and heat shock, and cells that are undergoing very rapid growth are made competent more easily than cells in other stages of growth. Factors such as transformation efficiency, genetic markers, and packaging formats will impact the time and effort required for your project, and so too its success. Choose from a number of cell types and formats to ensure optimal function.


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Supplier: New England Biolabs (NEB)
Description: Enhanced BL21 E.coli derivative for suitable for high efficiency transformation and protein expression.

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Catalog Number: (99900-332)
Supplier: Agilent Technologies
Description: SCSI supercompetent and DH5α competent cells are classic E. coli strains engineered for competence.


Supplier: New England Biolabs (NEB)
Description: Methyltransferase deficient chemically competent E.coli cells suitable for growth of plasmids free of Dam and Dcm methylation.

Small Business Enterprise

Catalog Number: (101227-510)
Supplier: New England Biolabs (NEB)
Description: Chemically competent Kluyveromyces lactis cells suitable for transformation with a linearized pKLAC-series expression vector


Catalog Number: (103391-806)
Supplier: New England Biolabs (NEB)
Description: Chemically competent <i>E. coli</i> cells suitable for T7 protein expression with enhanced capacity to correctly fold proteins with multiple disulfide bonds in the cytoplasm.


Supplier: Agilent Technologies
Description: BL21 competent cells are an all-purpose strain for high-level protein expression and easy induction.

Catalog Number: (103391-808)
Supplier: New England Biolabs (NEB)
Description: Chemically competent <i>E. coli</i> cells suitable for T7 protein expression with enhanced capacity to correctly fold proteins with multiple disulfide bonds in the cytoplasm and with enhanced reduction of basal expression.


Catalog Number: (103391-804)
Supplier: New England Biolabs (NEB)
Description: Chemically competent <i>E. coli</i> cells suitable for non-T7 protein expression with enhanced capacity to correctly fold proteins with multiple disulfide bonds in the cytoplasm.


Supplier: Lucigen
Description: Competent Cells include Control DNA and Recovery Medium, and are packaged as SOLOs (1 transformation per tube). Recovery Medium is also available separately. The specified transformation efficiencies are with pUC DNA.

Supplier: Lucigen
Description: Rescue cloning of EZ-Tn5™ transposed elements.
Supplier: New England Biolabs (NEB)
Description: A versatile non-T7 expression E. coli strain

Small Business Enterprise

Catalog Number: (101417-910)
Supplier: New England Biolabs (NEB)
Description: Enhanced BL21 E.coli derivative, chemically competent E. coli cells suitable for high efficiency transformation and for T7 expression with enhanced reduction of basal expression.

Small Business Enterprise


Catalog Number: (101417-922)
Supplier: New England Biolabs (NEB)
Description: NEB 10-beta electrocompetent <i>E. coli</i> cells are optimized for high efficiency transformation by electroporation. These cells are ideal for DNA library constructions and all cloning purposes.

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Catalog Number: (101417-930)
Supplier: New England Biolabs (NEB)
Description: E.coli cells featuring control of IPTG induced expression with non-T7 plasmids.

Small Business Enterprise


Supplier: Agilent Technologies
Description: SURE 2 competent cells are ideal for routine cloning of DNA with secondary structures.
Catalog Number: (ST200129)
Supplier: Agilent Technologies
Description: XL-1 Red Competent Cells are ideal for introducing random mutations into a cloned gene of interest.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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