What is XL10 gold?
The XL10-Gold ultracompetent cells were designed for cloning large plasmids and ligated DNA with the highest transformation efficiency possible, while exhibiting faster growth and larger colonies.
What are XL1 Blue competent cells?
XL1-Blue cells are endonuclease (endA) deficient, which greatly improves the quality of miniprep. DNA, and are recombination (recA) deficient, improving insert stability. The hsdR mutation prevents the cleavage of cloned DNA by the. EcoK endonuclease system.
What is BL21?
BL21 competent cells are an all-purpose strain for high-level protein expression and easy induction. The basic BL21 strain does not contain the T7 RNA polymerase gene and can be used with non-T7 RNA polymerase protein expression systems. BL21 has the tightest control of protein expression for extremely toxic proteins.
Can we store competent cells?
Competent cells should be stored at -80°C. Storage at -20°C will result in a significant decrease in transformation efficiency (TE).
What is DE3?
The DE3 designation means that respective strains contain the λDE3 lysogen that carries the gene for T7 RNA polymerase under control of the lacUV5 promoter. IPTG is required to maximally induce expression of the T7 RNA polymerase in order to express recombinant genes cloned downstream of a T7 promoter.
What are DE3 cells?
BL21(DE3) is a chemically competent E. coli cell suitable for transformation and high level protein expression using a T7 RNA polymerase-IPTG induction system.
Why xl10-gold ultracompetent cells?
XL10-Gold Ultracompetent Cells possess the high transformation phenotype (Hte), which gives these cells an average transformation efficiency of ≥ 5 x 10^9 transformants/μg of supercoiled DNA Plasmid libraries constructed in this strain are more representative because XL10-Gold cells decrease the bias against large inserts. For Research Use Only.
Why are xl10-gold cells used for DNA libraries?
XL10-Gold ultracompetent cells are ideal for constructing plasmid DNA libraries because they decrease size bias and produce larger, more complex plasmid libraries. XL10-Gold cells are deficient in all known restriction systems [D(mcrA)183 D(mcrCB-hsdSMR-mrr)173].
What is the best protocol to make competent xl10 cells?
There is no specific protocol for XL10 cells. Several protocols to make E. coli competent are available and you can use any of those. We are very happy users of the following protocol: Hi Antonio, i was wondering if you was succesful making competent cells from E. coli XL10 gold?
What are xl10 cells used for?
Discover XL10-Gold ultracompetent cells designed for cloning large plasmids or ligated DNA. These competent cells offer the highest transformation efficiencies available, enabling dramatically improved transformation efficiencies when cloning large plasmids and ligated DNA.