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Top : Molecular Biology : Cloning : PCR Product Cloning
Overview: There are at least three strategies for cloning PCR products. 1) T/A cloning which is the easiest cloning method. T/A cloning takes advantage of the terminal transferase activity of Taq polymerase and other non-proofreading DNA polymerases which adds a single 3'-A overhang to each end of the PCR product. The resulting PCR product is then ligated into a linear vector with a 3´ terminal 'T' or 'U' at both ends. 2) Restriction stick end cloning. A restriction enzyme target site is introduced into each of the PCR primers. The resulting PCR product and cloning vector are digested with the restriction enzymes to generate complementary ends at the PCR product and the vector which are then ligated. 3) Blunt-end cloning. Blunt-end PCR product generated by proof-reading polymerase such as the Pfu DNA Polymerase can also be cloned into a blunt-end vector.
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