Document Detail


PUB-NChIP - "in vivo biotinylation" approach to study chromatin in proximity to a protein of interest.
MedLine Citation:
PMID:  23038767     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have developed an approach termed PUB-NChIP (Proximity Utilizing Biotinylation with Native ChIP) to purify and study protein composition of chromatin in the proximity to a nuclear protein of interest. It is based on coexpression of a) a protein of interest, fused with the bacterial biotin ligase BirA together with b) a histone fused to BAP biotin acceptor peptide, which is specifically biotinylated by BirA fusion in the proximity of the protein of interest. Using RAD18 protein as a model, we demonstrate that the RAD18-proximal chromatin is enriched in some H4 acetylated species. Moreover, the Rad18-proximal chromatin containing a replacement histone H2AZ has a different pattern of H4 acetylation. Finally, biotin pulse-chase experiments show that H4 acetylation pattern starts to resemble acetylation pattern of total H4 after the proximity of chromatin to Rad18 has been lost.
Authors:
Muhammad Shoaib; Arman Kulyyassov; Chloe Robin; Kinga Winczura; Pavel Tarlykov; Emmanuelle Despras; Patricia Kannouche; Erlan Ramanculov; Marc Lipinski; Vasily Ogryzko
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  Genome research     Volume:  -     ISSN:  1549-5469     ISO Abbreviation:  Genome Res.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9518021     Medline TA:  Genome Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Institut Gustave Roussy, CNRS UMR8126, Universite Paris-Sud XI;
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