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Optimization of overlap extension PCR for efficient transgene construction.
Roland S Hilgarth1, Thomas M Lanigan2,1
1Vector Core, Biomedical Research Core Facilities, University of Michigan, Ann Arbor, MI, 48109, United States.
Methodsx
|February 6, 2020
Summary
We optimized overlap extension PCR for efficient gene fusion construction. Our protocol uses touchdown PCR cycling, high-fidelity polymerase, and reduced primer amounts for consistent, high-quality DNA fragment generation.
Area of Science:
- Molecular Biology
- Genetic Engineering
Background:
- Polymerase Chain Reaction (PCR) is essential for DNA manipulation.
- Overlap extension PCR (OE-PCR) is used for cloning large DNA fragments and gene fusions.
- Existing OE-PCR methods can be difficult to optimize and yield inconsistent results.
Purpose of the Study:
- To develop an optimized protocol for overlap extension PCR.
- To improve the efficiency and consistency of gene fusion construction.
- To simplify the optimization process for OE-PCR.
Main Methods:
- Implementation of touchdown PCR cycling parameters to reduce optimization needs.
- Utilized Q5 DNA polymerase for enhanced high-fidelity, full-length amplification.
- Reduced primer concentration in the final amplification step to minimize non-specific products.
Main Results:
- The modified protocol consistently generates gene fusion products.
- Achieved little to no background amplicon noise.
- Demonstrated enhanced efficiency in transgene construction.
Conclusions:
- The optimized OE-PCR protocol provides a robust and efficient method for gene fusion.
- This technique simplifies and improves the generation of transgene constructs.
- The protocol is valuable for researchers needing to create gene variations or fuse DNA elements.
