Paired-End Mapping Reveals Extensive Structural Variation in the Human Genome.by: Jan O O Korbel, Alexander Eckehart E Urban, Jason P P Affourtit, Brian Godwin, Fabian Grubert, Jan Fredrik F Simons, Philip M M Kim, Dean Palejev, Nicholas J J Carriero, Lei Du, Bruce E E Taillon, Zhoutao Chen, Andrea Tanzer, A C Eugenia C Saunders, Jianxiang Chi, Fengtang Yang, Nigel P P Carter, Matthew E E Hurles, Sherman M M Weissman, Timothy T T Harkins, Mark B B Gerstein, Michael Egholm, Michael Snyder
Science (27 September 2007)
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AbstractStructural variation of the genome involves kilobase- to megabase-sized deletions, duplications, insertions, inversions, and complex combinations of rearrangements. We introduce high-throughput and massive paired-end mapping (PEM), a large-scale genome sequencing method to identify structural variants (SVs) ~3 kb or larger that combines the rescue and capture of paired-ends of 3 kb fragments, massive 454 Sequencing, and a computational approach to map DNA reads onto a reference genome. PEM was used to map SVs in an African and putatively European individual and identified shared and divergent SVs relative to the reference genome. Overall, we fine-mapped more than 1000 SVs and documented that the number of SVs among humans is much larger than initially hypothesized; many of the SVs potentially affect gene function. The breakpoint junction sequences of more than 200 SVs were determined with a novel pooling strategy and computational analysis. Our analysis provided insights into the mechanisms of SV formation in humans.
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