Chromatin and the genome integrity network.

Chromatin and the genome integrity network.
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DOI:
10.1038/nrg3345
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发表时间:
2013-01
期刊:
Nature reviews. Genetics
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维持基因组完整性对于生物体的生存和后代性状的遗传至关重要。基因组不稳定是由 DNA 损伤、异常 DNA 复制或不协调的细胞分裂引起的,这可能导致染色体畸变和基因突变。最近,塑造表观遗传景观的染色质调节因子已成为维持基因组完整性的潜在看门人和信号协调员。在这里,我们回顾了控制基因组完整性的两条主要途径中的染色质功能:即 DNA 损伤修复和 DNA 复制。我们还讨论了最近的证据,这些证据表明染色质重塑因子在染色体分离和预防非整倍性中具有新的作用。
The maintenance of genome integrity is essential for organism survival and for the inheritance of traits to offspring. Genomic instability is caused by DNA damage, aberrant DNA replication or uncoordinated cell division, which can lead to chromosomal aberrations and gene mutations. Recently, chromatin regulators that shape the epigenetic landscape have emerged as potential gatekeepers and signalling coordinators for the maintenance of genome integrity. Here, we review chromatin functions during the two major pathways that control genome integrity: namely, repair of DNA damage and DNA replication. We also discuss recent evidence that suggests a novel role for chromatin-remodelling factors in chromosome segregation and in the prevention of aneuploidy.
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