期刊
METHODS
卷 57, 期 2, 页码 140-148出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ymeth.2012.05.006
关键词
DNA foci; Replication factories; Microscopy; Live cell imaging; Indirect immuno-fluorescence; S phase timing programme
资金
- BBSRC
- CONACyT (National Council for Science and Technology, Mexico)
- Biotechnology and Biological Sciences Research Council [BBS/B/06091] Funding Source: researchfish
The precise regulation of DNA replication is fundamental to the preservation of intact genomes during cell proliferation. Our understanding of this process has been based traditionally on a combination of techniques including biochemistry, molecular biology and cell biology. In this report we describe how the analysis of the S phase in mammalian cells using classical cell biology techniques has contributed to our understanding of the replication process. We describe traditional and state-of-the-art protocols for imaging sites of DNA synthesis in nuclei and the organisation of active replicons along DNA, as visualised on individual DNA fibres. We evaluate how the different approaches inform our understanding of the replication process, placing particular emphasis on ways in which the higher order chromatin structures and the spatial architecture of replication sites contribute to the orderly activation of defined regions of the genome at precise times of S phase. Crown Copyright (c) 2012 Published by Elsevier Inc. All rights reserved.
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