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Sequence Capture and Targeted Re-sequencing
Thahira Rahman, Institute of Human Genetics, Newcastle University, Newcastle upon Tyne
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Sequence Capture / Genome reduction:
Ultra deep sequencing
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Modifications done to Agilent’s in-solution hybrid capture method
Sample QC_ 260/230 and 260/280: 2.0 to 2.2 Fragmentation on Covaris
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Covaris fragment profiles observed on DNA 1000 LabChip
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End Repair Klenow exo- and ATP
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Ligate Multiplex PE adapters
SPRI bead purification Ligated samples checked on DNA 1000 LabChip (please refer previous slides)
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Custom synthesised Blocks used for Hyb
Probes designed on eArray Adapter linked gDNA fragments SureSelect Biotinylated RNA Baits Hybridisation 65C for 24h) Streptavidin coated magnetic beads Hybrid capture using MPC Unbound fragments Custom synthesised Blocks used for Hyb
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Post hybridisation PCR involve indexing of libraries
Quantification of adapted and enriched libraries on High Sensitivity LabChip
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Equimolar pooling of libraries
50bp Multiplex PE Illumina sequencing Data Analyses
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The data was aligned with hg18 genome build using bowtie
Size of the target region covered by SureSelect Human X-Chromosome baits is 3,053,381 bp. Total length of the captured sequence is 3,025,546 bp (99.09%).
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Coverage achieved: Maximum: x Average: x Minimum: 50.95x
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