Kochanova, N.Y.* ; Schauer, T.* ; Mathias, G.P.* ; Lukacs, A.* ; Schmidt, A.* ; Flatley, A. ; Schepers, A. ; Thomae, A.W.* ; Imhof, A.*
     
    
        
A multi-layered structure of the interphase chromocenter revealed by proximity-based biotinylation.
    
    
        
    
    
        
        Nucleic Acids Res. 48, 4161-4178 (2020)
    
    
    
      
      
	
	    During interphase centromeres often coalesce into a small number of chromocenters, which can be visualized as distinct, DAPI dense nuclear domains. Intact chromocenters play a major role in maintaining genome stability as they stabilize the transcriptionally silent state of repetitive DNA while ensuring centromere function. Despite its biological importance, relatively little is known about the molecular composition of the chromocenter or the processes that mediate chromocenter formation and maintenance. To provide a deeper molecular insight into the composition of the chromocenter and to demonstrate the usefulness of proximity-based biotinylation as a tool to investigate those questions, we performed super resolution microscopy and proximity-based biotinylation experiments of three distinct proteins associated with the chromocenter in Drosophila. Our work revealed an intricate internal architecture of the chromocenter suggesting a complex multilayered structure of this intranuclear domain.
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
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        Keywords
        Drosophila-melanogaster; Heterochromatin Protein-1; Phase-separation; Satellite Dna; In-vivo; Chromatin; Mouse; Identification; Transcription; Localization
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2020
    
 
    
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        HGF-reported in Year
        2020
    
 
    
    
        ISSN (print) / ISBN
        0305-1048
    
 
    
        e-ISSN
        1362-4962
    
 
    
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	    Volume: 48,  
	    Issue: 8,  
	    Pages: 4161-4178 
	    Article Number: ,  
	    Supplement: ,  
	
    
 
    
        
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            Publisher
            Oxford University Press
        
 
        
            Publishing Place
            Great Clarendon St, Oxford Ox2 6dp, England
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
    
        Institute(s)
        CF Monoclonal Antibodies (CF-MAB)
    
 
    
        POF-Topic(s)
        30201 - Metabolic Health
    
 
    
        Research field(s)
        Helmholtz Diabetes Center
    
 
    
        PSP Element(s)
        G-502210-001
    
 
    
        Grants
        DFG
Graduate School of Quantitative Biosciences Munich (QBM)
Deutsche Forschungsgemeinschaft (DFG)
    
 
    
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        Erfassungsdatum
        2020-06-04