missing translation for 'onlineSavingsMsg'
Learn More
Learn More
Invitrogen™ One Shot™ INVαF' Chemically Competent E. coli 
One Shot INVαF' Chemically Competent E. coli are designed to stably replicate high-copy number plasmids.
Supplier: Invitrogen™ C202003
Description
One Shot INVαF´ Chemically Competent E. coli are designed to stably replicate high-copy number plasmids. They allow for the preparation of high quality plasmid DNA with less carry over contaminants as compared to other popular strains such as JM109 and can achieve a transformation efficiency of >1 x 108 cfu/μg supercoiled plasmid.
INVαF´ cells carry the F´ episome and so can be utilized to produce single-stranded DNA (ssDNA) from vectors that have an f1 origin of replication. This strain is related to DH strains and features similar genetic traits and benefits. The lacZΔM15 marker provides α-complementation of the ß-galactosidase gene from pUC or similar vectors and can be used for blue-white screening of colonies on bacterial plates containing Bluo-Gal or X-Gal. In addition to supporting blue/white screening, recA1 and endA1 mutations increase insert stability and improve the quality of plasmid DNA.
One Shot INVαF´ Chemically Competent E. coli cells offer:
• Transformation efficiencies of >1 x 108 cfu/μg
• Stability and exceptional quality of high-copy number plasmid DNAb
• Blue-white screening of recombinant clones (lacZΔM15)
• Reduction of homologous recombination of transformed plasmids (recA1)
• Increased quality of plasmid DNA preparations (endA1)
• Production and rescue of ssDNA from vectors carrying the f1 origin of replication (F´)
Note: INVαF´ cells do not require IPTG to induce expression from the lac promoter.
Convenient and efficient format
One Shot INVαF´ Chemically Competent E. coli cells are supplied in the convenient, single-reaction One Shot format. Each tube contains enough cells for one complete transformation, reducing freeze-thaw cycles and limiting money wasted on unused cells.
Genotype
F´ endA1 recA1 hsdR17 (rK–, mK+) supE44 thi-1 gyrA96 relA1 φ80lacZΔM15 Δ(lacZYA-argF)U169 λ–
Genetic marker descriptions
Find the strain and format that fit your needs
• A variety of DH strains are available in chemically competent and electrocompetent cell formats.
• We offer other strains for ssDNA production, such as TOP10F´ (Cat. No. C303003) or electrocompetent DH12S (Cat. No. 18312017).
• MultiShot formats are available for high throughput applications.
Spécifications
| Chemically Competent Cells | |
| Yes (endA1) | |
| Medium Efficiency (1 x 108 to 1 x 109 cfu/μg) | |
| No | |
| Yes (lacZΔM15) | |
| High Copy Plasmid | |
| Yes (recA1) | |
| No | |
| Tube | |
| 21 x 50 μL/tube |
| Yes | |
| Yes (hsd) | |
| • One Shot INVαF' Chemically Competent E. coli (21 x 50 μL) Store Competent Cells at –80°C. • pUC19 plasmid (50 μL at 10 pg/μL) Store pUC19 plasmid at –20°C. • S.O.C. Medium (6 mL) Store S.O.C. Medium at 4°C or room temperature. |
|
| Not suitable for cloning unstable DNA | |
| Low | |
| No | |
| Dry Ice | |
| E. coli (K12) | |
| One Shot |
For Research Use Only. Not for use in diagnostic procedures.