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Published on: June 3, 2019
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Demultiplexing and barcode-specific adaptive sampling for nanopore direct RNA sequencing.
Wiep van der Toorn1,2, Patrick Bohn3, Wang Liu-Wei1,2,4
1Systems Medicine of Infectious Disease (P5), Robert Koch Institute, Berlin, Germany.
Nature Communications
|April 21, 2025
Summary
WarpDemuX offers fast, accurate adapter-barcoding and demultiplexing for nanopore direct RNA sequencing (dRNA-seq). This method enables cost-effective sample multiplexing, advancing transcriptomic research and viral diagnostics.
Area of Science:
- Molecular Biology
- Bioinformatics
- Genomics
Background:
- Nanopore direct RNA sequencing (dRNA-seq) provides valuable RNA biology insights.
- Current dRNA-seq applications are hindered by limitations in accurate and cost-effective sample multiplexing.
Purpose of the Study:
- Introduce WarpDemuX, an ultra-fast and highly accurate adapter-barcoding and demultiplexing method for dRNA-seq.
- Enhance the speed, accuracy, and cost-effectiveness of dRNA-seq multiplexing.
- Facilitate advanced (epi-) transcriptomic research and rapid phenotypic profiling.
Main Methods:
- Developed WarpDemuX, an adapter-barcoding and demultiplexing approach for dRNA-seq.
- Utilized fast raw nanopore signal processing and a lightweight machine-learning algorithm.
- Designed optimized barcode sets for enhanced performance.
- Integrated WarpDemuX with sequencing control software for real-time adaptive sampling.
Main Results:
- Demonstrated WarpDemuX's utility in rapid phenotypic profiling of SARS-CoV-2 viruses using multiplexed sequencing.
- Identified systematic differences in transcript abundance and poly(A) tail lengths during viral infection.
- Showcased real-time enrichment of low-abundance viral RNA through barcode-specific adaptive sampling.
Conclusions:
- WarpDemuX is a broadly applicable, high-performance, and economical multiplexing solution for dRNA-seq.
- Enables advanced (epi-) transcriptomic research by overcoming current multiplexing limitations.
- Facilitates rapid diagnostics and biological discovery through efficient sample processing.
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