Next-Generation Sequencing (NGS) allows the identification of mutations in heterogeneous complex samples. But, current NGS methods are prone to errors leading to inaccurate results. Unlike true mutations, which are complementary and present on both strands, sequencing errors that occur during amplification only impact one strand.
Our proprietary error-corrected NGS (ecNGS) technology, Duplex Sequencing, virtually eliminates sequencing errors by comparing individually labeled complementary DNA strands. Our technology allows for detecting rare genetic variants with an error rate of less than 1/10,000,000 per nucleotide sequenced compared to 1/100 to 1/1,000 of standard NGS.
Example: Mutation data from our mutagenesis product.
The true variant (dark purple) can be hiding in the background of standard NGS (light purple).
The true variant easily detected with Duplex Sequencing.
TwinStrand Duplex Sequencing Kits and Services are For Research Use Only. Not For Use in Diagnostic Procedures.
For Research Use Only. Not for use in diagnostic procedures.
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Danielle LeBlanc is a Biologist at Health Canada under the supervision of Dr. Francesco Marchetti. Danielle completed her undergraduate and Masters work at Carleton University in Ottawa. Danielle is currently focusing on the implementation of Duplex Sequencing for in vivo mutagenesis assessment at Health Canada.
In her spare time, she loves to cross-country ski, bake cupcakes and craft cocktails.
Dr. Francesco Marchetti is a Senior Research Scientist at Health Canada and Adjunct Research Professor at Carleton University. He chairs the Germ Cell workgroup of the Health and Environmental Science Institute’s Genetic Toxicology Technical Committee and is a member of the Organisation for the Economic Co-Operation and Development Expert Group on Genotoxicity Testing. Dr. Marchetti has authored over 125 peer-reviewed publications.
He was Editor-In-Chief of Environmental and Molecular Mutagenesis (EMM) during 2012-2016 and serves on the editorial boards of EMM and Mutagenesis. Dr. Marchetti is the current President of the Environmental Mutagenesis and Genomic Society.