Products & Reviews

TKB1 Competent Cells are derived from the BL21 strain and are intended for use with pET, pCAL or other T7 RNA promoter-based vectors. TKX1 Competent Cells are derived from the XL1-Blue strain and are intended for use with non-T7 promoter based vectors.

These competent cells offer the highest transformation efficiencies available, enabling dramatically improved transformation efficiencies when cloning large plasmids and ligated DNA. 

These competent cells offer the highest transformation efficiencies available, enabling dramatically improved transformation efficiencies when cloning large plasmids and ligated DNA.

The XL1-Blue strains are an all-prupose line of competent cells that are ideal for routine cloning needs. 

The XL1-Blue strains are an all-prupose line of competent cells that are ideal for routine cloning needs. 

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems. 

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems. 

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems.

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems. 

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems. 

The XL1-Blue strains are an all-prupose line of competent cells that are ideal for routine cloning needs. 

The XL1-Blue strains are an all-prupose line of competent cells that are ideal for routine cloning needs.

These competent cells enable a highly efficient, rapid, and reproducible method for introducing random mutations in a cloned gene of interest. This method involves propagating the cloned gene into XL1-Red Competent Cells; an Escherichia coli strain which is deficient in three of the primary DNA repair pathways.

When DNA is methylated in a fashion unlike the bacterial host patterns, it is cleaved by the E. coli host restriction systems. Cleavage of DNA before host replication creates libraries that lack complete representation. 

The XL1-Blue strains are an all-prupose line of competent cells that are ideal for routine cloning needs. 

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…

The SignalScout collection of phosphatase reagents includes the largest collection of human phosphatase expression clones and substrate trapping mutant expression clones.  Largest collection of active phosphatase enzymes, human phosphatase expression clones, and substrate trapping mutant expression clones  Purified GST-tagged active phosphatases for in vitro assay studies  Protein tyrosine, lipid, and dual specificity pho…