{"id":4563,"date":"2019-12-16T17:24:49","date_gmt":"2019-12-16T16:24:49","guid":{"rendered":"http:\/\/www.igmm.cnrs.fr\/?p=4563"},"modified":"2019-12-18T11:58:25","modified_gmt":"2019-12-18T10:58:25","slug":"structural-exploration-of-dna-folding-helps-to-understand-imprinting-disorders","status":"publish","type":"post","link":"https:\/\/www.igmm.cnrs.fr\/en\/structural-exploration-of-dna-folding-helps-to-understand-imprinting-disorders\/","title":{"rendered":"Structural exploration of DNA folding helps to understand imprinting disorders."},"content":{"rendered":"<p>In their study published in Genome Biology, David Ll\u00e8res and his co-workers (Genomic Imprinting and Development group headed by Robert Feil) explains how the structure of DNA controls the genes that are responsible for several of complex imprinting disorders.<br \/>\nThe genes that are involved in four of these human imprinting disorders (Beckwith-Wiedemann, Silver-Russell, Kagami-Ogata and Temple Syndromes) are organized in two large gene clusters, where the DNA methylation imprint is present on the chromosome from the father. Using mouse cells as a model, Robert Feil\u2019s tam and their collaborators (Daan Noordermeer\u2018s lab, Institute for Integrative Biology of the Cell, Gif-sur-Yvette, France) found that the CTCF factor, a well-known protein that helps folding chromosomes, binds to additional positions in both clusters when inherited from the mother (where the imprint is absent). By combining high-resolution genomics and microscopy approaches, the scientists were then able to demonstrate that this additional CTCF binding creates a new level of physical DNA domain structure that is unique to the maternal chromosome and that this difference in folding controls the opposing patterns of gene activity between the parental chromosomes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-4566\" src=\"http:\/\/www.igmm.cnrs.fr\/wp-content\/uploads\/2019\/12\/CTCF--405x600.jpg\" alt=\"\" width=\"405\" height=\"600\" srcset=\"https:\/\/www.igmm.cnrs.fr\/wp-content\/uploads\/2019\/12\/CTCF--405x600.jpg 405w, https:\/\/www.igmm.cnrs.fr\/wp-content\/uploads\/2019\/12\/CTCF-.jpg 673w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/p>\n<p>To know more:<br \/>\n<a href=\"https:\/\/genomebiology.biomedcentral.com\/track\/pdf\/10.1186\/s13059-019-1896-8\" target=\"_blank\" rel=\"noopener noreferrer\">CTCF modulates allele-specific sub-TAD organisation and imprinted gene activity at the mouse Dlk1-Dio3 and Igf2-H19 domains.<\/a><br \/>\nDavid Ll\u00e8res, Beno\u00eet Moindrot, Rakesh Pathak, Vincent Piras, M\u00e9lody Matelot, Beno\u00eet Pignard, Alice Marchand, Mallory Poncelet, Aur\u00e9lien Perrin, Virgile Tellier, Robert Feil* and Daan Noordermeer*. Genome Biology, 2019, 20:272. <a href=\"https:\/\/genomebiology.biomedcentral.com\/articles\/10.1186\/s13059-019-1896-8\" target=\"_blank\" rel=\"noopener noreferrer\">DOI: https:\/\/doi.org\/10.1186\/s13059-019-1896-8<\/a><\/p>\n<p><a href=\"https:\/\/insb.cnrs.fr\/fr\/cnrsinfo\/lorganisation-3d-des-genomes-dirige-lexpression-des-genes-soumis-lempreinte\" target=\"_blank\" rel=\"noopener noreferrer\">Also on INSB NEWS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In their study published in Genome Biology, David Ll\u00e8res and his co-workers (Genomic Imprinting and Development group headed by Robert Feil) explains how the structure of DNA controls the genes that are responsible for several of complex imprinting disorders. The genes that are involved in four of these human imprinting disorders (Beckwith-Wiedemann, Silver-Russell, Kagami-Ogata and Temple Syndromes) are organized in &hellip; <a href=\"https:\/\/www.igmm.cnrs.fr\/en\/structural-exploration-of-dna-folding-helps-to-understand-imprinting-disorders\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Structural exploration of DNA folding helps to understand imprinting disorders.<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":4578,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,16],"tags":[],"class_list":["post-4563","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general-news","category-science-en"],"_links":{"self":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/4563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/comments?post=4563"}],"version-history":[{"count":4,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/4563\/revisions"}],"predecessor-version":[{"id":4580,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/4563\/revisions\/4580"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/media\/4578"}],"wp:attachment":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/media?parent=4563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/categories?post=4563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/tags?post=4563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}