QIAseq SARS-CoV-2 Primer Panel
- High-fidelity reagents for reverse transcription and enrichment of SARS-CoV-2 RNA
- When paired with a QIAseq FX DNA Library Unique Dual Index (UDI) Kit, multiplex 384 samples in a single run
- Fast 3–3.5 hour enrichment workflow with limited hands-on time
The QIAseq SARS-CoV-2 Primer Panel is specially designed to advance research into SARS-CoV-2, which is the causative agent of COVID-19 disease. This kit, when paired with a QIAseq FX DNA Library UDI Kit, is a solution for enriching and sequencing the entire viral genome. SARS-CoV-2 is encoded by a positive-sense, single-stranded RNA molecule that can be mixed with host RNA during isolation from a sample. The kit includes reagents to reverse transcribe the RNA into cDNA and primers to specifically enrich for its genome. The panel consists of over 200 primer pairs, covering the full 29.9 kb viral genome.
Want to try the QIAseq SARS-CoV-2 Primer Panel for the first time? Request a quote for a trial kit.
Want to try the QIAseq FX DNA Library UDI Kit for the first time? Request a quote for a trial kit.
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Cat No./ID:333895 QIAseq SARS-CoV-2 Primer Panel (24) $260.00 Reagents and primers for reverse transcription, whole genome amplification and downstream Illumina sequencing; for 24 reactions |
Cat No./ID:333896 QIAseq SARS-CoV-2 Primer Panel (96) $960.00 Reagents and primers for reverse transcription, whole genome amplification and downstream Illumina sequencing; for 96 reactions |
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High-quality, single-box solution
Targeting SARS-CoV-2 requires both reverse transcription and whole genome enrichment of the viral RNA. The QIAseq SARS-CoV-2 Primer Panel combines both of these steps to generate amplicons for downstream library creation. When paired with a QIAseq FX DNA Library UDI Kit, you can construct sequencing-ready libraries compatible with Illumina platforms.
Community primer design
QIAseq SARS-CoV-2 primer pools utilize designs from the ARTIC V3 primers. The primers have also gone through an in silico check to reduce chances for dimerization during sample enrichment.
Multiplexing
Combine with a QIAseq FX DNA Library UDI Kit to enable multiplexing on high-throughput Illumina instruments, such as the NovaSeq (up to 384 samples per flow cell).
Data analysis
When paired with QIAGEN CLC Genomics Workbench, the panel can deliver data that can be quickly analyzed. Sequence data can be used to identify variants across different samples, as well as compare it to multiple genomes – from consensus reference genomes to one of many genomes that have been uploaded from around the world.
Viruses consist of nucleic acid (viral genome) and a limited number of proteins that facilitate entry into the host cell, replication of the genome and production of virions. While viral genomes can be comprised of RNA or DNA, SARS-CoV-2 is encoded by an RNA molecule. The size of the entire SARS-CoV-2 genome is under 30 kb and can be mixed with host RNA when isolating from a human sample, making it challenging to reconstruct the whole genome of the virus.
While next-generation sequencing (NGS) has become a vital tool, library preparation remains a key bottleneck in the NGS workflow. The QIAseq SARS-CoV-2 Primer Panel is a multiplex PCR primer set for whole genome amplification of SARS-CoV-2. Using primer pools that utilize designs from ARTIC V3 primers, the QIAseq SARS-CoV-2 Primer Panel generates amplicons that cover the entire SARS-CoV-2 genome. Combine with a QIAseq FX DNA Library UDI Kit to convert the amplicons into NGS-ready fragments compatible with lllumina sequencers.
From cDNA synthesis to enrichment
The QIAseq SARS-CoV-2 Primer Panel workflow begins with converting total viral RNA into cDNA using random priming (no rRNA depletion or poly-A selection is required). This reaction is flexible with regards to input RNA used for the reverse transcription reaction. To elaborate, 5 µl viral RNA input is required as a starting point. When the viral RNA has been previously assessed using a qPCR assay, the CT value should be between 18–35. If the CT is between 12–15, then dilute the sample 100-fold in water; if it"s between 15–18 then dilute 10-fold in water. This will reduce the likelihood of PCR-inhibition.
Following cDNA synthesis, primer pools (based on sequences from the ARTIC Network) are used in a high-fidelity multiplex PCR to prepare two pools of 400 bp QIAseq SARS-CoV-2 Primer Panel amplicons. The two enriched pools per sample are then combined into a single tube and then purified. This is then followed by QIAseq FX DNA library construction.
QIAseq FX DNA Library construction
Purified amplicons from a multiplex QIAseq SARS-CoV-2 Primer Panel are converted to Illumina-compatible NGS libraries using our QIAseq FX DNA Library UDI Kits, which provide a fast, fully enzymatic procedure from DNA fragmentation to NGS library.
Purified, target-enriched samples from the QIAseq SARS-CoV-2 Primer Panel are first enzymatically sheared into smaller fragments. The desired median fragment size is 250 bp. The fragmented DNA is then directly end-repaired and an "A" is added to the 3’ ends during the FX reaction, making the DNA fragments ready for adapter ligation. Following this step, Illumina platform-specific adapters are ligated to both ends of the DNA fragments. These adapters contain sequences essential for binding dual bar-coded libraries to a flow cell for sequencing.
Following adapter ligation, the reaction is purified, and any adapter-dimers are removed. This can be automated on various high-throughput automation platforms.
Whole SARS-CoV-2 genome coverage
Based on primer sequences from the ARTIC Network and this publication, the QIAseq SARS-CoV-2 Primer Panel separates 400 bp amplicons into two PCR pools that together cover the entire SARS-CoV-2 genome. Using a QIAseq FX DNA Library UDI Kit, the amplicons from the QIAseq SARS-CoV-2 Primer Panel are brought within the length requirements to perform sequencing on Illumina platforms.
The QIAseq SARS-CoV-2 Primer Panel can be used to generate whole genome coverage of the SARS-CoV-2 viral genome for epidemiological research purposes.
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