MW005 (bacterial strain) E.coli大肠杆菌菌株 BioVector NTCC质粒载体菌种细胞基因保藏中心

MW005 (bacterial strain) E.coli大肠杆菌菌株

Genotype：F- mcrA Δ(mrr-hsdRMS-mcrBC) Φ80dlacZ M15 ΔlacX74 deoR recA1 endA1 araD139 Δ(ara, leu) 7649 galU galK rspL nupG [ λcI857 (cro-bioA) < > araC-PBADtrfA]
Bacterial Resistance(s) Streptomycin Growth Temperature 30°C Growth Strain(s) MW005 Growth instructions Strain must be grown at 32oC or less (30oC is fine)
The PBAD-driven copy of cre in EL350 was replaced seamlessly with a copy of trfA, PCR-amplified from EPI300 chromosomal DNA, to generate MW005. This new strain has been used to both generate, via recombineering, a number of reporter gene fusions directly from pCC1FOS-based Caenorhabditis elegans genomic clones and to transiently induce copy-number of fosmid and BAC clones prior to DNA preparation. Conclusions: By retrofitting EL350, an established 'recombineering' E. coli strain, with a tightly regulated copy of trfA we have produced a new strain, MW005, which combines recombineering capacity with the useful ability to transiently induce copy-number of oriV-equipped clones. By coupling these two steps in a single strain, use of MW005 will enable the more rapid recombineering-mediated production of recombinant clones in the yield and quality necessary for many downstream purposes.

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