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Novel sulfoxides facilitate GC-rich template amplification
Raj Chakrabarti1, Clarence E Schutt
1Department of Chemistry, Princeton University, NJ 08544, USA. rajchak@princeton.edu
Biotechniques
|April 19, 2002
Summary
New sulfoxide compounds significantly enhance Polymerase Chain Reaction (PCR) amplification, especially for difficult high-GC templates. Tetramethylene sulfoxide proved exceptionally effective, outperforming dimethyl sulfoxide (DMSO).
Area of Science:
- Molecular Biology
- Biochemistry
- Organic Chemistry
Background:
- Organic solvents like DMSO and betaine can improve PCR amplification.
- High-GC content templates often present amplification challenges.
Purpose of the Study:
- To investigate the efficacy of novel sulfoxide compounds as PCR enhancers.
- To identify potent PCR enhancers for difficult DNA templates.
Main Methods:
- Structure-activity relationship studies of amides and sulfones.
- Screening of various sulfoxide compounds for PCR enhancement activity.
- Comparative analysis of sulfoxides against DMSO for GC-rich template amplification.
Main Results:
- Several novel sulfoxide compounds demonstrated potent PCR enhancement capabilities.
- Some sulfoxides outperformed the commonly used DMSO in enhancing PCR.
- Tetramethylene sulfoxide was identified as the most effective sulfur-oxygen compound for PCR amplification.
Conclusions:
- Sulfoxides represent a new class of highly effective PCR enhancers.
- Tetramethylene sulfoxide is a leading candidate for improving PCR of challenging templates.
- These findings offer new tools for molecular biology applications requiring efficient DNA amplification.