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大肠杆菌宿主菌株 E.coli

大肠杆菌 INV110

产品编号 产品名称
大肠杆菌 INV110

产品介绍

 

基因型:

F´ [traD36 proAB lacIqlacZΔM15] rpsL (StrR) thr leu endthi-1 lacgalgalara tontsx dam dcm supE44 Δ(lac-proAB) Δ(mcrC-mrr)102::Tn10(TetR)

INV110 Chemically Competent E. coli cells are derived from the JM110 strain and are specifically designed for the growth and purification of plasmid DNA that will be digested with dam or dcm methylation-sensitive restriction enzymes. The dam and dcm deficiency allows for the production of plasmid DNA that is unmethylated at GmATC and CmC(A/T)GG sites. INV110 Chemically Competent cells can achieve a transformation efficiency of >1 x 106 cfu/μg of control DNA.

The INV110 strain is a significant improvement over the JM110 strain. The INV110 strain has been engineered to carry an endA1 mutation, which eliminates the non-specific Endonuclease I, for improved plasmid DNA preparation. Mutation in the methylation-dependent restriction system Δ(mcrC-mrr) allows transformation of genomic DNA. This strain also has the lacZΔM15 genotype, providing for the option of blue-white screening on plates containing either X-Gal or Bluo-Gal. The INV110 strain contains an F´ episome that can support cloning plasmids with an f1-like origin of replication (phagemids) and allows isolation of single-stranded DNA (ssDNA). In addition, the F´ episome carries the lacIq repressor for inducible expression from trctac, and lac promoters using IPTG.


基本信息

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