tailieunhanh - Báo cáo y học: " Towards a comprehensive structural variation map of an individual human genome"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Towards a comprehensive structural variation map of an individual human genome. | Pang et al. Genome Biology 2010 11 R52 http 2010 11 5 R52 w Genome Biology RESEARCH _ Open Access Towards a comprehensive structural variation map of an individual human genome Andy W Pang 1 2 Jeffrey R MacDonald2 Dalila Pinto2 John Wei2 Muhammad A Rafiq2 Donald F Conrad3 Hansoo Park4 Matthew E Hurles3 Charles Lee4 J Craig Venter5 Ewen F Kirkness5 Samuel Levy5 Lars Feuk 42 6 and Stephen W Scherer 21 2 Abstract Background Several genomes have now been sequenced with millions of genetic variants annotated. While significant progress has been made in mapping single nucleotide polymorphisms SNPs and small 10 bp insertion deletions indels the annotation of larger structural variants has been less comprehensive. It is still unclear to what extent a typical genome differs from the reference assembly and the analysis of the genomes sequenced to date have shown varying results for copy number variation CNV and inversions. Results We have combined computational re-analysis of existing whole genome sequence data with novel microarray-based analysis and detect 12 178 structural variants covering Mb that were not reported in the initial sequencing of the first published personal genome. We estimate a total non-SNP variation content of Mb in a single genome. Our results indicate that this genome differs from the consensus reference sequence by approximately when considering indels CNVs by SNPs and approximately by inversions. The structural variants impact 4 867 genes and 24 of structural variants would not be imputed by SNP-association. Conclusions Our results indicate that a large number of structural variants have been unreported in the individual genomes published to date. This significant extent and complexity of structural variants as well as the growing recognition of their medical relevance necessitate they be actively studied in health-related analyses of personal genomes. The new catalogue of structural variants generated for .

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