Abstract
The discovery of DNA damage response proteins such as γH2AX, ATM, 53BP1, RAD51, and the MRE11/RAD50/NBS1 complex, that accumulate and/or are modified in the vicinity of a chromosomal DNA double-strand break to form microscopically visible, subnuclear foci, has revolutionized the detection of these lesions and has enabled studies of the cellular machinery that contributes to their repair. Double-strand breaks are induced directly by a number of physical and chemical agents, including ionizing radiation and radiomimetic drugs, but can also arise as secondary lesions during replication and DNA repair following exposure to a wide range of genotoxins. Here we aim to review the biological meaning and significance of DNA damage foci, looking specifically at a range of different settings in which such markers of DNA damage and repair are being studied and interpreted. Environ. Mol. Mutagen. 56:491-504, 2015.
Original language | English |
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Pages (from-to) | 491-504 |
Number of pages | 14 |
Journal | Environmental and Molecular Mutagenesis |
Volume | 56 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jul 2015 |
Bibliographical note
Publisher Copyright:© 2015 Wiley Periodicals, Inc.
Keywords
- 53BP1
- DNA double-strand break
- Genotoxicity
- Ionizing radiation
- γH2AX