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Merck

69041

Sigma-Aldrich

B834(DE3) Competent Cells - Novagen

Escherichia coli, rod shaped

別名:

Competent cells

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About This Item

UNSPSCコード:
41106202
NACRES:
NA.81

product name

B834(DE3) Competent Cells - Novagen, B834 is the parental strain for BL21. These hosts are methionine auxotrophs and allow high specific activity labeling of target proteins with 35S-methionine and selenomethionine for crystallography.

由来生物

Escherichia coli

メーカー/製品名

Novagen®

保管条件

OK to freeze
avoid repeated freeze/thaw cycles

成長モード

adherent or suspension

形態

rod shaped

テクニック

microbiological culture: suitable

細胞形質転換

transformation efficiency: >2×106 cfu/μg

輸送温度

dry ice

保管温度

−70°C

詳細

B834 is the parental strain for BL21 (1). These protease-deficient hosts are methionine auxotrophs and allow high specific-activity labeling of target proteins with 35S-methionine and selenomethionine for crystallography (2).

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.
Genotype: F-ompT hsdSB(rB- mB-) gal dcm met (DE3)





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.
B834 is the parental strain for BL21. These hosts are methionine auxotrophs and allow high specific activity labeling of target proteins with 35S-methionine and selenomethionine for crystallography.

構成

0.4 ml1 mlComponent

•2 × 0.2 ml5 × 0.2 mlB834(DE3)Competent Cells

•2 × 2 ml4 × 2 mlSOC Medium

•2 ng2 ngTest Plasmid

警告

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

その他情報

1. Wood, W. B. (1966) J. Mol. Biol. 16, 118–133.

2. Leahy, D. J., Hendrickson, W. A., Aukhil, I., and Erickson, H. P. (1992) Science 258, 987–991.

法的情報

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

保管分類コード

10 - Combustible liquids

WGK

WGK 2


試験成績書(COA)

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Simon Sander et al.
Protein science : a publication of the Protein Society, 31(6), e4320-e4320 (2022-06-01)
Transient receptor potential melastatin 2 (TRPM2) is a Ca2+ -permeable, nonselective cation channel involved in diverse physiological processes such as immune response, apoptosis, and body temperature sensing. TRPM2 is activated by ADP-ribose (ADPR) and 2'-deoxy-ADPR in a Ca2+ -dependent manner.
Alison B Hickman et al.
eLife, 9 (2020-01-09)
Key to CRISPR-Cas adaptive immunity is maintaining an ongoing record of invading nucleic acids, a process carried out by the Cas1-Cas2 complex that integrates short segments of foreign genetic material (spacers) into the CRISPR locus. It is hypothesized that Cas1
Zhe Feng et al.
Cell, 169(6), 1078-1089 (2017-06-03)
In flies, Centrosomin (Cnn) forms a phosphorylation-dependent scaffold that recruits proteins to the mitotic centrosome, but how Cnn assembles into a scaffold is unclear. We show that scaffold assembly requires conserved leucine zipper (LZ) and Cnn-motif 2 (CM2) domains that co-assemble
Tobias Geiger et al.
eLife, 9 (2020-01-21)
Typhoid toxin is a virulence factor for the bacterial pathogen Salmonella Typhi, which causes typhoid fever in humans. After its synthesis by intracellular bacteria, typhoid toxin is secreted into the lumen of the Salmonella-containing vacuole by a secretion mechanism strictly
Pengkai Sun et al.
Nature communications, 13(1), 6562-6562 (2022-11-06)
Itaconate is a newly discovered endogenous metabolite promoting an anti-inflammatory program during innate immune response, but the precise mechanisms underlying its effect remains poorly understood owing primarily to the limitations of available itaconate-monitoring techniques. Here, we develop and validate a

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