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The Department of Biology at the University of Virginia has recently acquired a Roche 454 FLX Genome Sequencing System. This state-of-the-art instrument serves as the cornerstone of our growing Comparative Genomics core. We are pleased to offer a range of genome sequencing services to individuals within and outside of our academic community.

Process Overview:
Please visit this link for an comprehensive description of the sequencing process
Briefly, the sample workflow is as follows:
- Customers submit a DNA sample that meets all quality control benchmarks set forth by the Genomics Core
- A library is created via shearing and then ligation of process-specific adaptor molecules to the customer's sample
- This library undergoes a concentration titration in an oil-in-water emulsion PCR reaction (emPCR) to determine the optimum amount of template library needed to produce enough clonal DNA for sequencing
- A production emPCR is carried out to amplify sufficient DNA copies for sequencing
- The library is deposited onto a sequencing plate and the sequencing run is carried out
- Run data is stored for XXX hrs on the Core clusters, during which time it can be downloaded via FTP. The Core can also provide a hard copy customer data at at-cost.
454 Sequencing Highlights:
- 400-600 megabase (Mb) with greater-than 1 million high-quality reads per run
- 99% accuracy at base 400, > 99% at preceding bases (q20 = 400)
- Unidirectional sequencing pass 400 bases (average) with Titanium chemistry
- Ability to process dsDNA from genomic, organelle, BAC, YAC P1
- Multiplex Identifier Taqs (MIDs) allow for sample pooling after library construction to reduce user expense and maximize data output
Applications*:
- Prokaryotic/eukaryotic whole genome sequencing
- Resequencing/deep sequencing
- SNP detection
- Metagenomics
- Gene discovery
- ChIP-seq/Methylation/Epigenetics
Current Services Offered**:
- Standard (shotgun) library preparation
- 3 - 8kb Paired-end library preparation
- Sequencing from any library source (e.g. transciptome, amplicon, etc.)
Cost of Service:
- Service prices vary depending upon the user's affiliation (academic, non-profit and commercial)
*For a comprehensive list of applications, please visit Roche's website
**Breadth of services will expand concomitantly with Roche product release. |