A high-throughput and single-tube recombination of crude PCR products using a DNA polymerase inhibitor and type IIS restriction enzyme.


Type IIS restriction enzymes have been successfully used as ...
Type IIS restriction enzymes have been successfully used as "universal" restriction enzymes in DNA manipulations. We took a step further to develop a rapid technique for recombining DNA fragments, fully automatic single-tube recombination (FASTR), which enables multiple-fragment DNA recombination in a single step. Crude PCR products are directly mixed with both type IIS restriction endonuclease and DNA ligase to initiate a spontaneous and one-way recombination reaction. Highly efficient DNA recombination can be achieved by an inhibition of DNA polymerase with aphidicolin and a selective digestion of template DNAs by DpnI, a restriction enzyme to digest hemi-methylated DNA in the reaction solution; thereby the entire procedure takes less than 15 min. Owing to its simplicity, efficiency and rapidity, one-step FASTR can be applied to a wide range of DNA manipulations including those involving high-throughput applications where significant reduction in time and cost is expected.




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