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MDC1: The Art of Keeping Things in Focus

Overview
Journal Chromosoma
Specialty Molecular Biology
Date 2010 Mar 13
PMID 20224865
Citations 49
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Abstract

The chromatin structure is important for recognition and repair of DNA damage. Many DNA damage response proteins accumulate in large chromatin domains flanking sites of DNA double-strand breaks. The assembly of these structures-usually termed DNA damage foci-is primarily regulated by MDC1, a large nuclear mediator/adaptor protein that is composed of several distinct structural and functional domains. Here, we are summarizing the latest discoveries about the mechanisms by which MDC1 mediates DNA damage foci formation, and we are reviewing the considerable efforts taken to understand the functional implication of these structures.

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References
1.
Rodriguez M, Yu X, Chen J, Songyang Z . Phosphopeptide binding specificities of BRCA1 COOH-terminal (BRCT) domains. J Biol Chem. 2003; 278(52):52914-8. DOI: 10.1074/jbc.C300407200. View

2.
Williams R, Williams J, Tainer J . Mre11-Rad50-Nbs1 is a keystone complex connecting DNA repair machinery, double-strand break signaling, and the chromatin template. Biochem Cell Biol. 2007; 85(4):509-20. DOI: 10.1139/O07-069. View

3.
Zhang J, Ma Z, Treszezamsky A, Powell S . MDC1 interacts with Rad51 and facilitates homologous recombination. Nat Struct Mol Biol. 2005; 12(10):902-9. DOI: 10.1038/nsmb991. View

4.
Xu C, Wu L, Cui G, Botuyan M, Chen J, Mer G . Structure of a second BRCT domain identified in the nijmegen breakage syndrome protein Nbs1 and its function in an MDC1-dependent localization of Nbs1 to DNA damage sites. J Mol Biol. 2008; 381(2):361-72. PMC: 2574983. DOI: 10.1016/j.jmb.2008.05.087. View

5.
Lou Z, Minter-Dykhouse K, Franco S, Gostissa M, Rivera M, Celeste A . MDC1 maintains genomic stability by participating in the amplification of ATM-dependent DNA damage signals. Mol Cell. 2006; 21(2):187-200. DOI: 10.1016/j.molcel.2005.11.025. View