We believe this site might serve you best:

United States

English Continue

This country code will remain if no action is taken to change it.

Don't see your country?
Promega Corporation

Cloning Tools and Competent Cells


Need Assistance? Chat

Subcloning tools 9505CA
New Single-Use Competent Cells

The Single-Use Cells are 50µl aliquots of chemically competent cells in single-use tubes. Transformation is performed directly in the provided tube, saving you time and effort and minimizing loss of efficiency due to repeated freeze-thaw cycles.

Featured Products

Single Step KRX Competent Cells

Efficient transformation and tightly controlled protein expression. Ideal for rapidly generating new clones for recombinant protein expression.

Single-Use Pro 5-alpha Competent Cells

High-efficiency competent cells (109cfu/µg), ideal for the blue/white screening of recombinant clones. Pro 5-alpha can be used for the efficient transformation of unmethylated DNA from PCR, cDNA and many other sources.

pGEM® 3Zf+/- Vectors

Multi-purpose, blue/white screening vector with many unique restriction sites. Use as a standard cloning vector, for in vitro transcription, or for production of circular ssDNA.

T4 DNA Ligase

Blue/White cloning qualified. Use to join two strands of DNA between the 5´-phosphate and the 3´-hydroxyl groups of adjacent nucleotides in either sticky- or blunt-end configuration.

Featured Resources

Tools_fr BioMath Calculators

The easy way to calculate melting temperature, molarity, dilution, DNA and protein concentration.

teachtrain_fr Unit 6: Basics of Molecular Cloning (Blue/White Selection)

This teaching unit covers the basics of cloning and blue/white selection. Includes math-intensive lab

It appears that you have Javascript disabled. Our website requires Javascript to function correctly. For the best browsing experience, please enable Javascript.