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Key Documents

CMC0014

Sigma-Aldrich

BL21(DE3) Chemically Competent Cells

Escherichia coli, rod shaped

Synonim(y):

Competent E. coli cells

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About This Item

Kod UNSPSC:
41106202
NACRES:
NA.85

product name

BL21(DE3) Chemically Competent Cells, for protein expression

pochodzenie biologiczne

Escherichia coli

klasa czystości

for molecular biology

tryb wzrostu

adherent or suspension

morfologia

rod shaped

metody

microbiological culture: suitable

transformacja komórek

competent cell type: chemically competent
transformation efficiency: ≥1 x 107 cfu/μg

Warunki transportu

dry ice

temp. przechowywania

−70°C

Opis ogólny

The BL21(DE3) Chemically Competent strains contain the phage T7 RNA polymerase gene linked to the IPTG-inducible promoter, for use with any expression plasmid containing the T7 promoter.

Genotype

F – ompT hsdSB (rB- mB-) gal dcm (DE3)

Zastosowanie

The E. coli strain BL21 (DE3) has been used:

  • to express tau 2N4R isoform (aa1–441) and the truncated tau (aa1–421) using pET19b as expression vector.
  • BL21(DE3)Chemically Competent Cells has been used for the transformation and expressionof protegrin-1 (PG1) peptides.
  • to express 6His-TEVsite-Hs ARF1 (17-181)-Q71L in pHis2 vector.

Cechy i korzyści

  • a transformation efficiency of >1 × 107 cfu/μg.
  • economical prices
  • offering superior value for everyday protein expression work.

Komponenty

  • BL21(DE3) chemically competent cells
  • pUC 19 transformation control DNA
  • recovery medium for expression

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Kod klasy składowania

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Odwiedź Bibliotekę dokumentów

Yasaman Damestani et al.
Lasers in surgery and medicine, 48(8), 782-789 (2016-10-19)
The development and feasibility of a novel nanocrystalline yttria-stabilized-zirconia (nc-YSZ) cranial implant has been recently established. The purpose of what we now call "window to the brain (WttB)" implant (or platform), is to improve patient care by providing a technique
A validated antibody panel for the characterization of tau post-translational modifications.
Ebru E, et al.
Mol. Neurodegener., 12(1), 87-87 (2017)
Romana Koszagova et al.
Microbial cell factories, 17(1), 139-139 (2018-09-05)
Physiological aggregation of a recombinant enzyme into enzymatically active inclusion bodies could be an excellent strategy to obtain immobilized enzymes for industrial biotransformation processes. However, it is not convenient to recycle "gelatinous masses" of protein inclusion bodies from one reaction
David B Sauer et al.
eLife, 9 (2020-09-02)
Citrate, α-ketoglutarate and succinate are TCA cycle intermediates that also play essential roles in metabolic signaling and cellular regulation. These di- and tricarboxylates are imported into the cell by the divalent anion sodium symporter (DASS) family of plasma membrane transporters
Gints Kalnins et al.
Nature communications, 11(1), 388-388 (2020-01-22)
Bacterial microcompartments (BMCs) are prokaryotic organelles consisting of a protein shell and an encapsulated enzymatic core. BMCs are involved in several biochemical processes, such as choline, glycerol and ethanolamine degradation and carbon fixation. Since non-native enzymes can also be encapsulated
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