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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nature 2017 ; 544 (7648): 59-64 Nephropedia Template TP
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3D structure of individual mammalian genomes studied by single cell Hi-C #MMPMID28289288
Stevens TJ; Lando D; Basu S; Atkinson LP; Cao Y; Lee SF; Leeb M; Wohlfahrt KJ; Boucher W; O?Shaughnessy-Kirwan A; Cramard J; Faure AJ; Ralser M; Blanco E; Morey L; Sansó M; Palayret MGS; Lehner B; Di Croce L; Wutz A; Hendrich B; Klenerman D; Laue ED
Nature 2017[Apr]; 544 (7648): 59-64 PMID28289288show ga
The folding of genomic DNA from the beads-on-a-string like structure of nucleosomes into higher order assemblies is critically linked to nuclear processes. We have calculated the first 3D structures of entire mammalian genomes using data from a new chromosome conformation capture procedure that allows us to first image and then process single cells. This has allowed us to study genome folding down to a scale of <100 kb and to validate the structures. We show that the structures of individual topological-associated domains and loops vary very substantially from cell-to-cell. By contrast, A/B compartments, lamin-associated domains and active enhancers/promoters are organized in a consistent way on a genome-wide basis in every cell, suggesting that they could drive chromosome and genome folding. Through studying pluripotency factor- and NuRD-regulated genes, we illustrate how single cell genome structure determination provides a novel approach for investigating biological processes.