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Published on: October 23, 2011
A comprehensive assay for targeted multiplex amplification of human DNA sequences
Sujatha Krishnakumar1, Jianbiao Zheng, Julie Wilhelmy
1Stanford Genome Technology Center, 855, California Avenue, Palo Alto, CA 94304, USA.
Summary
We developed Spacer Multiplex Amplification Reaction (SMART) for parallel amplification of human DNA sequences. This robust method efficiently amplifies numerous targets for multiplexed analyses, offering high uniformity and flexibility.
Area of Science:
- Molecular Biology
- Genomics
- Biotechnology
Background:
- Multiplexed sequence analysis requires efficient and reproducible amplification of multiple DNA targets simultaneously.
- Existing methods may face limitations in scalability and uniformity for large-scale genomic studies.
Purpose of the Study:
- To develop a novel, robust, and reproducible methodology for parallel amplification of human DNA sequences.
- To enable downstream multiplexed sequence analyses with high efficiency and uniformity.
Main Methods:
- Developed Spacer Multiplex Amplification Reaction (SMART) technology, based on padlock probe technology.
- Utilized long padlock probes (>300 bases) engineered from dsDNA templates with precise ends.
- Demonstrated proof of principle by amplifying 485 human exons (100-500 bp) from genomic DNA.
Main Results:
- >90% of targets successfully amplified across multiple repetitions.
- High amplification uniformity observed, with 70% of targets within a 10-fold range of abundance.
- SMART technology demonstrated flexibility for potential multiplexing of tens of thousands of targets.
Conclusions:
- SMART technology provides a robust and reproducible method for parallel amplification of human DNA.
- The methodology is suitable for capturing and amplifying a large number of targets, including human exons.
- SMART offers a scalable and flexible platform for advanced multiplexed sequence analyses.
