70726-M

Tuner Competent Cell Set - Novagen

• UNSPSC Code: 41106202

Properties

• manufacturer/tradename: Novagen^®
• Quality Level: 100
• storage condition: OK to freeze; avoid repeated freeze/thaw cycles
• shipped in: dry ice
• storage temp.: −70°C

Description

General description

Tuner strains are lacZY deletion mutants of BL21 and enable adjustable levels of protein expression throughout all cells in a culture. The lac permease (lacY) mutation allows uniform entry of IPTG into all cells in the population, which produces a concentration-dependent, homogeneous level of induction. By adjusting the concentration of IPTG, expression can be regulated from very low levels up to the robust, fully induced levels commonly associated with pET vectors. Lower-level expression may enhance the solubility and activity of difficult target proteins.

DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG.

pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability.

Genotypes:
Tuner
F– ompT hsdS_B (rB– mB–) gal dcm lacY1

Tuner(DE3)
F– ompT hsdS_B (rB– mB–) gal dcm lacY1(DE3)

Tuner(DE3)pLysS
F– ompT hsdS_B (rB– mB–) gal dcm lacY1(DE3) pLysS (CamR)

Packaging

Glass bottle

Warning

Toxicity: Multiple Toxicity Values, refer to MSDS

Legal Information

NOVAGEN is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

This product is sold for internal research use only. Any commercial use of this product, its components, and/or any derivatives thereof (including but not limited to proteins produced using the product or its components) (together and hereinafter the ′EMD Product′) requires signature of a written commercial use agreement with EMD Millipore Corporation or its successor-in-interest. Commercial use shall include but not be limited to: (1) use of the EMD Product to manufacture products for sale to third parties; (2) use of the EMD Product to provide services, information, or data to third parties in exchange for consideration; (3) use of the EMD Product for therapeutic, diagnostic or prophylactic purposes (including as part of a device, chip, assay or other product); or (4) resale of the EMD Product, whether or not such EMD Product is resold for research use. Nothing contained herein shall be deemed to represent or warrant that additional third party rights are not required for use of the EMD Product. Please direct any questions on these use restrictions to: [email protected].

This product contains genetically modified organisms (GMO). Within the EU GMOs are regulated by Directives 2001/18/EC and 2009/41/EC of the European Parliament and of the Council and their national implementation in the member States respectively. This legislation obliges MilliporeSigma to request certain information about you and the establishment where the GMOs are being handled. Clickhere for Enduser Declaration (EUD) Form

Safety Information

• Storage Class: 10 - Combustible liquids