Corporate Banner
Satellite Banner
Proteomics
Scientific Community
 
Become a Member | Sign in
Home>Products>This Product
  Products


OverExpress C41(DE3) Chemically Competent Cells - 24 reactions

Product Description
Express genes cloned into any T7 vector with these BL21(DE3) derivatives
Effective in expressing toxic & membrane proteins
Cited in over 350 research articles

E. coli BL21(DE3) strains, like Lucigen’s E. cloni® EXPRESS Competent Cells provide reliable expression of many genes cloned into T7 expression vectors (e.g., pET or Lucigen’s pSMART®-cDNA vectors). However, in some cases expression is minimal or not detectable because the recombinant protein, when expressed, is deleterious or lethal to these standard BL21 strains. Examples of such toxic proteins include many membrane proteins, some cytoplasmic proteins, and nucleases. Unfortunately, successful expression of one or more toxic proteins is often important to the experimental goal.

Lucigen’s OverExpress Electrocompetent and Chemically Competent Cells are E. coli strains that are effective in expressing toxic proteins from all classes of organisms, including eubacteria, yeasts, plants, viruses, and mammals. The effectiveness of these new strains in expressing toxic proteins has been validated in more than 350 publications.

The OverExpress strains contain genetic mutations phenotypically selected for conferring tolerance to toxic proteins. The strain C41(DE3) was derived from BL21(DE3). This strain has at least one mutation, which prevents cell death associated with expression of many recombinant toxic proteins. The strain C43(DE3) was derived from C41(DE3) by selecting for resistance to a different toxic protein and can express a different set of toxic proteins to C41(DE3). Figure 1 graphically illustrates the advantages of the OverExpress Competent Cells, compared to standard BL21(DE3) cells, in expressing toxic proteins.
Product OverExpress C41(DE3) Chemically Competent Cells - 24 reactions
Company Lucigen Corporation
Price Request a quote
More Information View company product page
Catalog Number 60442-2
Quantity 24 reactions (SOLOs)
Company Logo

Lucigen Corporation
2120 West Greenview Dr., Suite 9 Middleton, WI 53562 US

Tel: +1 608 831 9011
Fax: +1 608 831 9012
Email: lucigen@lucigen.com



Scientific News
Charting Kidney Cancer Metabolism
Changes in cell metabolism are increasingly recognized as an important way tumors develop and progress, yet these changes are hard to measure and interpret. A new tool designed by MSK scientists allows users to identify metabolic changes in kidney cancer tumors that may one day be targets for therapy.
"Dark Side" of the Transcriptome
New approach to quantifying gene "read-outs" reveals important variations in protein synthesis and has implications for understanding neurodegenerative diseases.
Advancing Synthetic Biology
Living systems rely on a dizzying variety of chemical reactions essential to development and survival. Most of these involve a specialized class of protein molecules — the enzymes.
Structure of Brain Plaques in Huntington's
Researchers at the University of Pittsburgh School of Medicine have shown that the core of the protein clumps found in the brains of people with Huntington's disease have a distinctive structure, a finding that could shed light on the molecular mechanisms underlying the neurodegenerative disorder.
Visualizing a Cancer Drug Target at Atomic Resolution
Using cryo-electron microscopy, researchers were able to view, in atomic detail, the binding of a potential small molecule drug to a key protein in cancer cells.
Pumpjack" Mechanism for Splitting and Copying DNA
High-resolution structural details of cells' DNA-replicating proteins offer new insight into how these molecular machines function
The Power of Three
Overlooked portion of cell “death receptor” critical in some cancers, autoimmune diseases.
Biomarker for Recurring HPV-Linked Oropharyngeal Cancers
A look-back analysis of HPV infection antibodies in patients treated for oropharyngeal (mouth and throat) cancers linked to HPV infection suggests at least one of the antibodies could be useful in identifying those at risk for a recurrence of the cancer, say scientists at the Johns Hopkins University.
Light Signals from Living Cells
Fluorescent protein markers delivered under high pressure.
Cellular 'Relief Valve'
A team led by scientists at The Scripps Research Institute (TSRI) has solved a long-standing mystery in cell biology by showing essentially how a key “relief-valve” in cells does its job.
Scroll Up
Scroll Down

SELECTBIO

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,900+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,200+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!