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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
REVIEW
Should I stay or should I go: VCP/p97-mediated chromatin extraction in the DNA damage response.
Experimental Cell Research 2014 November 16
The ordered assembly of DNA repair factors on chromatin has been studied in great detail, whereas we are only beginning to realize that selective extraction of proteins from chromatin plays a central role in the DNA damage response. Interestingly, the protein modifier ubiquitin not only regulates the well-documented recruitment of repair proteins, but also governs the temporally and spatially controlled extraction of proteins from DNA lesions. The facilitator of protein extraction is the ubiquitin-dependent ATPase valosin-containing protein (VCP)/p97 complex, which, through its segregase activity, directly extracts ubiquitylated proteins from chromatin. In this review, we summarize recent studies that uncovered this important role of VCP/p97 in the cellular response to genomic insults and discuss how ubiquitin regulates two intuitively counteracting activities at sites of DNA damage.
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