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Key Documents

71397

Sigma-Aldrich

Rosetta 2(DE3) Competent Cells - Novagen

Escherichia coli, rod shaped

동의어(들):

BL21 derivatives

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About This Item

UNSPSC 코드:
41106202
NACRES:
NA.81

product name

Rosetta 2(DE3) Competent Cells - Novagen, Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

생물학적 소스

Escherichia coli

Quality Level

제조업체/상표

Novagen®

저장 조건

OK to freeze

성장 모드

adherent or suspension

형태학

rod shaped

기술

microbiological culture: suitable

세포 형질전환

transformation efficiency: >2×106 cfu/μg

배송 상태

dry ice

저장 온도

−70°C

일반 설명

Genotype: F-ompT hsdSB(rB- mB-) gal dcm (DE3) pRARE2 (CamR)





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 us to request certain information about you and the establishment where the GMOs are being handled. Click here for Enduser Declaration (EUD) Form.
A common method for transformation of DNA plasmids into E. coli is the use of chemically competent cells. Although competent cells can be prepared in the laboratory, greater efficiency, reproducibility, and convenience are achieved using Novagen prepared competent cells. Novagen competent cells represent the widest selection available for protein expression. Every Novagen competent cell strain is verified for phenotype and purity, and is guaranteed fortransformation efficiency. T7 expression strains are lysogens of bacteriophage DE3, as indicated by the (DE3). These hosts carry 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 appropriate T7 expression vectors, using IPTG as an inducer.
Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. These strains supply tRNAs for 7 rare codones (AGA, AGG, AUA, CUA, GGA, CCC, and CGG) on a compatible chloramphenicol-resistant plasmid. The tRNA genes are driven by their native promoters.

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.
Novagen′s Rosetta 2 host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

성분

•2 × 200 µl or 5 × 200 µl Rosetta 2(DE3) Competent Cells

•2 × 2 ml or 4 × 2 mlSOC Medium

•10 µlTest Plasmid

경고

Toxicity: Multiple Toxicity Values, refer to MSDS (O)

법적 정보

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

Storage Class Code

10-13 - German Storage Class 10 to 13

WGK

WGK 2


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