Lorenzo, J.P.* ; Molla, L.* ; Amro, E.M.* ; Ibarra Del Rio, I.A. ; Ruf, S.* ; Neber, C.* ; Gkougkousis, C.* ; Ridani, J.* ; Subramani, P.G.* ; Boulais, J.* ; Harjanto, D.* ; Vonica, A.* ; di Noia, J.M.* ; Dieterich, C.* ; Zaugg, J.B.* ; Papavasiliou, F.N.*
     
 
    
        
APOBEC2 safeguards skeletal muscle cell fate through binding chromatin and regulating transcription of non-muscle genes during myoblast differentiation.
    
    
        
    
    
        
        Proc. Natl. Acad. Sci. U.S.A. 121:e2312330121 (2024)
    
    
    
		
		
			
				The apolipoprotein B messenger RNA editing enzyme, catalytic polypeptide (APOBEC) family is composed of nucleic acid editors with roles ranging from antibody diversification to RNA editing. APOBEC2, a member of this family with an evolutionarily conserved nucleic acid-binding cytidine deaminase domain, has neither an established substrate nor function. Using a cellular model of muscle differentiation where APOBEC2 is inducibly expressed, we confirmed that APOBEC2 does not have the attributed molecular functions of the APOBEC family, such as RNA editing, DNA demethylation, and DNA mutation. Instead, we found that during muscle differentiation APOBEC2 occupied a specific motif within promoter regions; its removal from those regions resulted in transcriptional changes. Mechanistically, these changes reflect the direct interaction of APOBEC2 with histone deacetylase (HDAC) transcriptional corepressor complexes. We also found that APOBEC2 could bind DNA directly, in a sequence-specific fashion, suggesting that it functions as a recruiter of HDAC to specific genes whose promoters it occupies. These genes are normally suppressed during muscle cell differentiation, and their suppression may contribute to the safeguarding of muscle cell fate. Altogether, our results reveal a unique role for APOBEC2 within the APOBEC family.
			
			
				
			
		 
		
			
				
					
					Impact Factor
					Scopus SNIP
					Web of Science
Times Cited
					Scopus
Cited By
					
					Altmetric
					
				 
				
			 
		 
		
     
    
        Publikationstyp
        Artikel: Journalartikel
    
 
    
        Dokumenttyp
        Wissenschaftlicher Artikel
    
 
    
        Typ der Hochschulschrift
        
    
 
    
        Herausgeber
        
    
    
        Schlagwörter
        Apobec Family ; Dna Binding ; Muscle Differentiation ; Safeguard Factor ; Transcriptional Regulator; Rna-editing Enzyme; Polypeptide 2 Apobec2; Phosphodiesterase 1a; Dna Demethylation; Muller Glia; Deaminase; Expression; Zebrafish; Proteins; Identity
    
 
    
        Keywords plus
        
    
 
    
    
        Sprache
        englisch
    
 
    
        Veröffentlichungsjahr
        2024
    
 
    
        Prepublished im Jahr 
        0
    
 
    
        HGF-Berichtsjahr
        2024
    
 
    
    
        ISSN (print) / ISBN
        0027-8424
    
 
    
        e-ISSN
        1091-6490
    
 
    
        ISBN
        
    
 
    
        Bandtitel
        
    
 
    
        Konferenztitel
        
    
 
	
        Konferzenzdatum
        
    
     
	
        Konferenzort
        
    
 
	
        Konferenzband
        
    
 
     
		
    
        Quellenangaben
        
	    Band: 121,  
	    Heft: 17,  
	    Seiten: ,  
	    Artikelnummer: e2312330121 
	    Supplement: ,  
	
    
 
  
        
            Reihe
            
        
 
        
            Verlag
            National Academy of Sciences
        
 
        
            Verlagsort
            2101 Constitution Ave Nw, Washington, Dc 20418 Usa
        
 
	
        
            Tag d. mündl. Prüfung
            0000-00-00
        
 
        
            Betreuer
            
        
 
        
            Gutachter
            
        
 
        
            Prüfer
            
        
 
        
            Topic
            
        
 
	
        
            Hochschule
            
        
 
        
            Hochschulort
            
        
 
        
            Fakultät
            
        
 
    
        
            Veröffentlichungsdatum
            0000-00-00
        
 
         
        
            Anmeldedatum
            0000-00-00
        
 
        
            Anmelder/Inhaber
            
        
 
        
            weitere Inhaber
            
        
 
        
            Anmeldeland
            
        
 
        
            Priorität
            
        
 
    
        Begutachtungsstatus
        Peer reviewed
    
 
     
    
        POF Topic(s)
        30205 - Bioengineering and Digital Health
    
 
    
        Forschungsfeld(er)
        Enabling and Novel Technologies
    
 
    
        PSP-Element(e)
        G-503800-001
    
 
    
        Förderungen
        Helmholtz-Fonds (Helmholtz-Fonds e.V.)
    
 
    
        Copyright
        
    
 	
    
    
    
    
    
        Erfassungsdatum
        2024-06-07