Sangam: A Confluence of Knowledge Streams

Lagging strand replication shapes the mutational landscape of the genome

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dc.contributor MRC - Medical Research Council
dc.contributor Taylor, Martin
dc.creator Taylor, Martin
dc.creator Kemp, Harriet
dc.creator Marion de Procé, Sophie
dc.creator Reijns, Martin
dc.creator Ding, James
dc.creator Jackson, Andrew
dc.date 2015-01-23T13:45:33Z
dc.date 2015-01-26T13:45:33Z
dc.date.accessioned 2023-02-17T20:52:07Z
dc.date.available 2023-02-17T20:52:07Z
dc.identifier Taylor, Martin; Kemp, Harriet; Marion de Procé, Sophie; Reijns, Martin; Ding, James; Jackson, Andrew. (2015). Lagging strand replication shapes the mutational landscape of the genome, [dataset]. University of Edinburgh. MRC Institute of Genetics and Molecular Medicine. MRC Human Genetics Unit. https://doi.org/10.7488/ds/204.
dc.identifier https://hdl.handle.net/10283/701
dc.identifier https://doi.org/10.7488/ds/204
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/243964
dc.description The origin of mutations is central to understanding evolution and of key relevance to health. Variation occurs non-randomly across the genome, and mechanisms for this remain to be defined. Here we report that the 5' ends of Okazaki fragments have significantly increased levels of nucleotide substitution, indicating a replicative origin for such mutations. Using a novel method, emRiboSeq, we map the genome-wide contribution of polymerases, and show that despite Okazaki fragment processing, DNA synthesized by error-prone polymerase-alpha (Pol-alpha) is retained in vivo, comprising ~1.5% of the mature genome. We propose that DNA-binding proteins that rapidly re-associate post-replication act as partial barriers to Pol-delta-mediated displacement of Pol-alpha-synthesized DNA, resulting in incorporation of such Pol-alpha tracts and increased mutation rates at specific sites. We observe a mutational cost to chromatin and regulatory protein binding, resulting in mutation hotspots at regulatory elements, with signatures of this process detectable in both yeast and humans.
dc.description See dataShareREADME.txt
dc.format application/octet-stream
dc.format text/plain
dc.language eng
dc.publisher University of Edinburgh. MRC Institute of Genetics and Molecular Medicine. MRC Human Genetics Unit
dc.relation https://doi.org/10.1038/nature14183
dc.relation https://github.com/taylorLab/LaggingStrand
dc.relation Reijns, MAM, Kemp, H, Ding, J, Marion de Procé, S, Jackson, P, Taylor, M. (2015) "Lagging-strand replication shapes the mutational landscape of the genome" Nature, https://doi.org/10.1038/nature14183 .
dc.source http://www.sciencemag.org/site/feature/data/raghu1064351/SmoothedPooledHLData/smoothedpooledHLdata.html
dc.source http://hgdownload.soe.ucsc.edu/goldenPath/sacCer3/multiz7way/maf/
dc.source ftp://ftp.sanger.ac.uk/pub/users/dmc/yeast/latest/misc.tgz
dc.subject DNA
dc.subject mutation
dc.subject replication
dc.subject lagging strand
dc.subject Biological Sciences::Molecular Biology Biophysics and Biochemistry
dc.title Lagging strand replication shapes the mutational landscape of the genome
dc.type dataset


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