Generally, no, because the future generations of cells lose their competency.
Przejdź do
Informacje o tej pozycji
grade
Molecular Biology
form
suspension
shipped in
dry ice
storage temp.
−70°C
General description
Application
Biochem/physiol Actions
Features and Benefits
- Ensures recovery of stable, high quality plasmid DNA as well as methylated DNA
- Renders protection to clonal stocks from T1 and T5 bacteriophage contamination
- Allows for β-galactosidase α-complementation for blue/white screening
- Guaranteed high transformation efficiency
- Convenient 80 μL or 100 μL aliquots
Other Notes
- Thunderbolt GC10 electrocompetent cells, 5 X 80 μL or 5 X 100 μL (T7074)
- pUC 19 control DNA (10 ng/μL), 10 μL (D2567)
Legal Information
Klasa składowania
12 - Non Combustible Liquids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Wybierz jedną z najnowszych wersji:
Masz już ten produkt?
Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Powiązane treści
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| T7699-5X100UL | 04061838218285 |
-
Can I grow more competent cells from the stock I purchased?
1 answer-
Helpful?
-
-
Can I express a recombinant protein that is toxic to the bacteria?
1 answer-
For expression of toxic recombinant proteins, select the BL21 strain containing the pLysS plasmid. These cells express low levels of lysozyme that will bind to T7 polymerase, and inhibit transcription.
Helpful?
-
-
Competent cells were left on ice overnight - can they still be used?
1 answer-
Competent cells left on ice, or allowed to come to room temperature slowly will suffer a dramatic loss in transformation efficiency. We recommend thawing a new aliquot of competent cells.
Helpful?
-
-
Are home-made competent cells as efficient at transformation as purchased cells?
1 answer-
They can be, depending on the technique used, the expected transformation efficiency and how the cells are handled. For special applications, competent cells prepared in-house using standard methods may not provide the efficiency you need.
Helpful?
-
-
Are all competent cells suitable for both plasmid production and protein expression?
1 answer-
No. Most strains of competent cells are suitable for producing plasmid DNA that will be used to transfect insect or mammalian cells for expression of the protein. The BL21 competent cell strains have special traits enabling protein expression in bacteria.
Helpful?
-
-
Can I re-freeze the vial if I do not use the entire aliquot of competent cells?
1 answer-
Re-freezing competent cells will result in a decrease in their transformation efficiency. If the cells are frozen first in a dry ice / ethanol bath before placement in the -80C freezer, the loss will be about two-fold. If placed directly in the -80C freezer, the loss in transformation efficiency is about five to ten-fold.
Helpful?
-
-
How should I thaw the competent cells?
1 answer-
Competent cells should be thawed on ice. The transformation efficiency is dependent on the proper handling of the cells (maintaining cold temperature until transformation).
Helpful?
-
-
What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Helpful?
-
-
What are important considerations when performing bacterial transformation?
1 answer-
Things to consider when planning bacterial transformation:DNA impuritiesSource of DNAAmount of DNA usedStorage and handling of the competent cells
Helpful?
-
-
Can I store the competent cells in the -20C?
1 answer-
No. Competent cells should not be stored at -20C for any length of time. The cells suffer a dramatic drop in transformation efficiency when stored higher than -80C.
Helpful?
-