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Next-Generation Sequencing. Eric Jorgenson Epidemiology 217 2/28/12. Outline. Overview of Sequencing Example Next Generation Sequencing Study: Whole Genome, Exome, Families (IBD), Cancer PTC Taste Sensitivity. Links to videos and articles. http://www.bloomberg.com/video/84364498/
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Next-Generation Sequencing Eric Jorgenson Epidemiology 217 2/28/12
Outline Overview of Sequencing Example Next Generation Sequencing Study: Whole Genome, Exome, Families (IBD), Cancer PTC Taste Sensitivity
Links to videos and articles http://www.bloomberg.com/video/84364498/ http://www.bloomberg.com/video/84364540/ http://www.bloomberg.com/video/86406762/ http://www.bloomberg.com/news/2012-01-17/search-genome-as-tennis-thrice-weekly-no-barrier-to-decoded-dna.html http://www.bloomberg.com/news/2012-02-15/harvard-mapping-my-dna-turns-scary-as-threatening-gene-emerges.html
Huntington’s Disease Testing Almqvist AJHG 1999
Number of Genetic Markers for Genetic Studies Genome-wide Linkage Studies 300-400 Microsatellite Markers Genome-wide Association Studies 100,000-2,500,000 SNPs Exome Sequencing Studies 30,000,000 Basepairs Gene-based Studies 22,000 Genes Whole Genome Sequencing Studies 3,200,000,000 Basepairs
Variant detection through next generation sequencing Meyerson et al. NRG 2010
ANNOVAR: Using Annotation to Narrow the Search Space openbioinformatics.org/annovar
Outline Overview of Sequencing Example Next Generation Sequencing Study: Whole Genome, Exome, Families (IBD), Cancer PTC Taste Sensitivity
Sequencing of a Single Individual with Family Data Lupski et al. NEJM 2010
Exome Sequencing Identifies a Tibetan Adaptation Yi et al. Science 2010
Family Sequencing for Rare Diseases Roach et al. Science 2010
Sequence Data Improves Identity By Descent Resolution Su and Jorgenson under review
Cancer: Tumor vs. Normal Lee et al. Nature 2010
Nonsynonymous Somatic Mutations in Neuroblastoma Molenaar et al. Nature 2012
Mutation count associated with age, stage, and survival Molenaar et al. Nature 2012
Outline Overview of Sequencing Example Next Generation Sequencing Study: Whole Genome, Exome, Families (IBD), Cancer PTC Taste Sensitivity
Distribution of PTC Phenotype Number of Subjects PTC Score
TAS2R38 Receptor Structure Kim et al. J Dent Res 2004
3 SNPs Form 3 Haplotypes P A V Taster Non-taster A V I Rare A A V
PTC Phenotype by TAS2R38 Diplotype Number of Subjects PTC Score
Outliers After Adjusting for TAS2R38 Diplotype Number of Subjects PTC Score
Unusual PTC Phenotypes (AVI Homozygotes in Green) 11 8 9 3 8 10 12 9 9 9
Unusual PTC Phenotypes (AVI Homozygotes in Green) 11 14 10 10 9 2 4 11 11
Using Relatedness 11 8 9 3 8 10 12 9 9 9
How can whole genome sequence influence treatment? • Identify Genes with Protein Altering Mutations • Determine Variation in Specific Genes
Appendix: Study Design Considerations in Sequencing • Extreme Sampling • Families
Sampling from the Extremes of a Quantitative Distribution Su and Jorgenson under revision
Relative Power of Sampling from Various Phenotype Deciles Su and Jorgenson under revision
Families can reduce error rates Roach et al. Science 2010
Families can reduce error rates Roach et al. Science 2010