期刊
FRONTIERS IN GENETICS
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fgene.2018.00095
关键词
nuclear organization; DSB mobility; telomeres; DSB repair; kinesin; microtubules; chromatin remodeling; heterochromatin
资金
- Canadian Institutes of Health Research (CIHR) [299429]
- Ontario Early Researcher Award [ER13-09-111]
- Canada Research Chair (CRC) in Spatial Genome organization [950230661]
Eukaryotic genomes are non-randomly arranged inside the nucleus. Despite this ordered spatial genome organization, damaged DNA exhibits increased random mobility within nuclear space. This increased random movement is thought to promote DNA repair by facilitating homology search, allowing targeting to repair-conducive nuclear domains, or releasing damage from repair-repressive locations. Recent studies focusing on the relationship between telomeres, DNA repair processes, and nuclear organization have revealed that the disruption of motor proteins or microtubules, which typically mediate the directed motion of cargo, disrupts the random mobility of damaged DNA. These findings define a new biological paradox. Here, I define this as the damaged DNA mobility paradox, describe how it uncovers key gaps in knowledge, and highlight key questions to help guide us toward paradox resolution.
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