QIAseq Index Kits
For indexing samples enriched with either QIAseq Targeted DNA Panels or QIAseq Targeted RNAscan Panels
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QIAseq Index Kits are intended for molecular biology applications. These products are not intended for the diagnosis, prevention, or treatment of a disease....
PCR duplicates are a major issue in targeted DNA sequencing, since, through PCR amplification, they turn unique DNA molecules into identical DNA molecules that cannot be distinguished from each other. In addition, errors from PCR amplification and sequencing process may also be present in final reads that lead to false positive variants in sequencing results. This, in turn, results in the inability to confidently call DNA variants present at low frequencies in the starting DNA material. To overcome the issue of PCR duplicates and amplification artifacts, the QIAseq Targeted DNA Panels use digital sequencing by incorporating molecular barcodes into the starting DNA material before any amplification takes place, thereby preserving the uniqueness of the starting DNA molecules and overcoming the issues of PCR duplicates, false positives and library bias.
The entire workflow of the QIAseq targeted DNA panels to go from extracted DNA to sequencing-ready libraries can be completed in 9 hours (see figure Workflow). Extracted DNA is fragmented, genomic targets are molecularly barcoded and enriched, and libraries are constructed. Sequencing files can be fed into the QIAseq pipeline, a cloud-based data analysis pipeline, which will filter, map and align reads, as well as count unique molecular barcodes associated with targeted genomic regions, and call variants with a barcode-aware algorithm. This data can then be fed into IVA or QCI for interpretation.
The QIAseq Targeted DNA Indexes can be used for indexing samples enriched with either QIAseq targeted DNA Panels or QIAseq targeted RNAscan panels, and are available for both Illumina and Ion Torrent platforms.
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