CloneSmarter™ Zero Background Topo TA DNA Cloning Kit

[shortdesc]Topo isomerase based fast zero background cloning kit for sticky end DNA fragments. Both AmpR and KanR available for choose. Does not include competent cell.[/shortdesc]   [els_overview]CloneSmarter™ Zero Background Topoisomerase TA Cloning Kit is designed for fast cloning of DNA fragments up to 10 kb generated by Taq DNA polymerase which introduce single 3’-A overhang to the end of the DNA product. DNA fragments generated by restriction digestion or obtained by mechanical shearing can also be effectively cloned after end polishing using Taq DNA polymerase. It utilizes DNA strand transfer activity of Viccinia virus topoisomerase I. Vaccinia virus DNA topoisomerase I forms a 3’-phosphoryl intermediate with the plasmid vector containing cleavage recognition motif of 5’ CCCTT↓. Covalently bound topoisomerase I then transfer the incised vector DNA strand to the DNA fragment to be cloned with free 5’-OH terminuses (refer to the illustration below). This transferring reaction is r