Inter-chromosomal contact networks provide insights into mammalian chromatin organization.
    
    
        
    
    
        
        PLoS ONE 10:e0126125 (2015)
    
    
    
		
		
			
				The recent advent of conformation capture techniques has provided unprecedented insights into the spatial organization of chromatin. We present a large-scale investigation of the inter-chromosomal segment and gene contact networks in embryonic stem cells of two mammalian organisms: humans and mice. Both interaction networks are characterized by a high degree of clustering of genome regions and the existence of hubs. Both genomes exhibit similar structural characteristics such as increased flexibility of certain Y chromosome regions and co-localization of centromere-proximal regions. Spatial proximity is correlated with the functional similarity of genes in both species. We also found a significant association between spatial proximity and the co-expression of genes in the human genome. The structural properties of chromatin are also species specific, including the presence of two highly interactive regions in mouse chromatin and an increased contact density on short, gene-rich human chromosomes, thereby indicating their central nuclear position. Trans-interacting segments are enriched in active marks in human and had no distinct feature profile in mouse. Thus, in contrast to interactions within individual chromosomes, the inter-chromosomal interactions in human and mouse embryonic stem cells do not appear to be conserved.
			
			
				
			
		 
		
			
				
					
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        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Nuclear-organization; Gene-regulation; Cohesin; Genome; Cells; Centromeres; Ctcf; Conformation; Complex; Lamina
    
 
    
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        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2015
    
 
    
        Prepublished im Jahr 
        
    
 
    
        HGF-Berichtsjahr
        2015
    
 
    
    
        ISSN (print) / ISBN
        1932-6203
    
 
    
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	    Band: 10,  
	    Heft: 5,  
	    Seiten: ,  
	    Artikelnummer: e0126125 
	    Supplement: ,  
	
    
 
  
        
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            Verlag
            Public Library of Science (PLoS)
        
 
        
            Verlagsort
            Lawrence, Kan.
        
 
	
        
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        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
30505 - New Technologies for Biomedical Discoveries
    
 
    
        Forschungsfeld(er)
        Enabling and Novel Technologies
    
 
    
        PSP-Element(e)
        G-503800-001
G-503700-001
    
 
    
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        Erfassungsdatum
        2015-05-13