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Updated: May 5, 2026

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Quantifying RNA allelic ratios by microfluidic multiplex PCR and sequencing.

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We created a new RNA sequencing method for precise analysis of genetic variations. This technique accurately measures allelic ratios in RNA samples, aiding RNA editing and expression studies.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Accurate measurement of allelic ratios is crucial for understanding gene regulation and disease.
  • Existing RNA sequencing methods can be limited by RNA quantity, quality, and cost-effectiveness for targeted analyses.

Purpose of the Study:

  • To develop a novel targeted RNA sequencing method for uniform and simultaneous amplification of multiple loci.
  • To enable accurate and cost-effective measurement of allelic ratios, even from low-quantity or low-quality RNA samples.
  • To apply this method to studies of RNA editing and allele-specific expression.

Main Methods:

  • Development of a microfluidics-based multiplex PCR and deep sequencing (mmPCR-seq) technique.
  • Simultaneous amplification of up to 960 loci across 48 samples.
  • Application of mmPCR-seq for RNA editing and allele-specific expression analysis.

Main Results:

  • Achieved uniform amplification of target loci irrespective of gene expression levels.
  • Demonstrated accurate and cost-effective measurement of allelic ratios from challenging RNA samples.
  • Successfully applied mmPCR-seq to investigate RNA editing and allele-specific expression.

Conclusions:

  • mmPCR-seq provides a powerful and versatile tool for targeted RNA analysis.
  • This method complements standard RNA sequencing for detailed allelic variation studies.
  • mmPCR-seq enhances the study of RNA editing and allele-specific expression with improved accuracy and cost-efficiency.