Multiplex gene removal by two-step polymerase chain reactions |
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Authors: | Vishnu Vardhan Krishnamurthy John S. KhamoEllen Cho Cara SchornakKai Zhang |
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Affiliation: | Department of Biochemistry, University of Illinois at Urbana–Champaign, Urbana, IL 61801, USA |
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Abstract: | Precise DNA manipulation is critical for molecular biotechnology. Restriction enzyme-based approaches are limited by their requirement of specific enzyme sites. Restriction-free cloning has greatly improved the flexibility and speed of precise DNA assembly. Most of these approaches focus on DNA assembly rather than gene removal. Here we present a polymerase chain reaction (PCR)-based cloning method that allows removal of multiple gene segments from plasmids without using restriction enzymes and thermostable ligase. We demonstrate simultaneous removal of three gene segments from a plasmid. This approach could be beneficial to DNA library construction, genetic and protein engineering, and synthetic biology. |
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Keywords: | Restriction-free cloning PCR Multiplex gene removal Plasmids |
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