NEBNext Direct® Cancer HotSpot Panel
This product was discontinued on 12/31/20. In case there is need for additional supply beyond this date, please contact NEBNextDirect@neb.com.
- Catalog # E7000 was discontinued on December 31, 2020
The NEBNext Direct® Cancer HotSpot Panel employs a unique hybridization-based enrichment workflow that hybridizes baits directly to genomic DNA, without the need for upfront library preparation.
- Generate a higher percentage of your sequencing reads aligning to your targets
- Eliminate the need to over-sequence, reducing cost per sample
- Obtain uniform sequencing of all targets, regardless of GC content
- Save time with a 1-day workflow that combines enrichment with library preparation
- Generate high quality libraries with limited input amounts and degraded DNA samples, including FFPE and ctDNA
- Distinguish molecular duplicates, reducing false positive variants and improving sensitivity
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Product Information
Target enrichment, coupled with next generation sequencing (NGS), enables high-throughput, deep sequencing of genomic regions of interest. NEBNext Direct is a novel, hybridization-based capture method offering significant advantages over traditional in-solution hybridization and multiplex PCR protocols.
In the NEBNext Direct target enrichment approach (Figure 1), enzymatically nicked or Covaris® sheared DNA is hybridized to biotinylated oligonucleotide baits that capture both strands of the target DNA and define the 3´ ends of the regions of interest. After hybridization, the bait-target hybrids are bound to streptavidin beads and any 3´ off-target sequence is removed enzymatically. This combination of hybridization with enzymatic removal of 3´ off-target sequence enables greater sequencing specificity relative to conventional hybridization-based enrichment methods. The trimmed targets are then converted into Illumina-compatible libraries that include a 12 bp unique molecular identifier (UMI) in the Illumina i5 index location and an 8 bp sample barcode in the Illumina i7 index location. The NEBNext Direct enrichment method can be performed within one to two days and is compatible with most automated liquid handling instruments.
The NEBNext Direct Cancer HotSpot Panel is designed to enrich for DNA fragments across 190 common cancer targets from 50 genes, encompassing approximately 40 kb of sequence and including over 18,000 COSMIC features. This kit contains the oligonucleotides, beads, enzymes and buffers required to convert the desired fragments into a sequence-ready library for next-generation sequencing on the Illumina platform and is designed for PE75 or PE150 Illumina sequencing.
Advantages- Generate a higher percentage of your sequencing reads aligning to your targets
- Eliminate the need to over-sequence, reducing cost per sample
- Obtain uniform sequencing of all targets, regardless of GC content
- Save time with a 1-day workflow that combines enrichment with library preparation
- Generate high quality libraries with limited input amounts and degraded DNA samples, including FFPE and ctDNA
- Distinguish molecular duplicates, reducing false positive variants and improving sensitivity
Figure 1. NEBNext Direct employs a fast hybridization-based workflow that combines capture with library preparation.
Table 1. Targets include regions from the following cancer-related genes:
Figure 2. The NEBNext Direct Cancer HotSpot Panel demonstrates the ability to accurately detect a range of nucleic acid variants.
This figure shows the expected versus observed variant allele frequencies (VAF) across the range of well-characterized variants present in a pool of 24 HapMap samples screened against the NEBNext Direct Cancer HotSpot Panel. 100 ng of input DNA was used, samples were sequenced on the Illumina® MiSeq® using 2 x 75 bp sequencing, and standard data analysis and variant calling algorithms were used. We were able to successfully detect 100% of the 168 truth variants present across a range of 2-100% VAF. The high degree of linearity across this broad dynamic range demonstrates the ability of the NEBNext Direct Cancer HotSpot Panel to accurately predict variant allele frequencies across a broad dynamic range.
Figure 3. The NEBNext Direct Cancer HotSpot Panel delivers a high percentage of sequence reads mapping to targets, even with challenging sample types.
- Graph shows the percentage of aligned sequence reads that map to the targets
- 100 ng of DNA was used for each library preparation
- Reads were generated on an Illumina® MiSeq® with 2 x 75 bp reads, 8 bp sample ID, and 12 bp unique molecule ID
- Alignments were performed with BWA-MEM and PCR duplicates were filtered using the unique molecule IDs
Figure 4. The NEBNext Direct Cancer HotSpot Panel displays high uniformity of coverage across targets.
- Graph shows the percentage of target bases sequenced to at least 50%, 33%, and 25% of the mean read depth
- 100 ng of DNA was used for each library preparation
- Reads were generated on an Illumina MiSeq with 2 x 75 bp reads, 8 bp sample ID, and 12 bp unique molecule ID
- Alignments were performed with BWA-MEM and PCR duplicates were filtered using the unique molecule IDs
Figure 5. The NEBNext Direct Cancer HotSpot Panel offers minimized bias across sequence content.
- Graph shows the normalized depth of coverage of targets of varying GC content
- 100 ng of DNA was used for each library preparation
- Reads were generated on an Illumina MiSeq with 2 x 75 bp reads, 8 bp sample ID, and 12 bp unique molecule ID
- Alignments were performed with BWA-MEM and PCR duplicates were filtered using the unique molecule IDs
ILLUMINA® and MISEQ® are registered trademarks of Illumina®, Inc.
Lot Control
The lots provided are managed separately and qualified by additional functional validation. Individual reagents undergo standard enzyme activity and quality control assays, and also meet stringent criteria in the additional quality controls listed on each individual component page- This product is related to the following categories:
- Discontinued (<3 years)
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