Imaging Specific Genomic DNA in Living Cells.

Imaging Specific Genomic DNA in Living Cells.
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DOI:
10.1146/annurev-biophys-062215-010830
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发表时间:
2016-07-05
影响因子:
12.4
通讯作者:
Huang B
Huang B
中科院分区:
生物学1区
文献类型:
--
作者:
Chen B;Guan J;Huang B

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The three-dimensional organization of the genome plays important roles in regulating the functional output of the genome, and even the maintenance of epigenetic inheritance and genome stability. Here, we review and compare a number of newly developed methods that enables the direct visualization of specific, endogenous DNA sequences in living cells, especially that utilizing the CRISPR-Cas9 system. We further discuss the practical considerations in implementing the CRIPSR imaging technique in order to achieve sufficient signal-to-background level, high specificity and high labeling efficiency. With these DNA labeling methods enabling the tracking of the copy number, localization and movement of genomic elements, we discuss their potential applications in understanding the searching and targeting mechanism of Cas9-sgRNA complex, investigating chromosome organization, as well as visualizing genome instability and rearrangement.
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