Toward Live Visualization of Chromosome Dynamics and Structure
Recent studies have suggested that chromosomes are hierarchically organized into topologically associated domains. Direct visualization of the genomic elements in living cells is required to explore the relationship between such structural organization and its functional roles. To study the structur...
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ftuisanist:oai:scholarworks.unist.ac.kr:201301/33795 2023-05-15T14:21:36+02:00 Toward Live Visualization of Chromosome Dynamics and Structure Kim, Hajin 2019-01-24 https://scholarworks.unist.ac.kr/handle/201301/33795 ?????? unknown Umea University The Arctic Biophysics Meeting on Epigenetics and Chromosome Dynamics https://scholarworks.unist.ac.kr/handle/201301/33795 22093 CONFERENCE CONF 2019 ftuisanist 2022-05-15T05:38:17Z Recent studies have suggested that chromosomes are hierarchically organized into topologically associated domains. Direct visualization of the genomic elements in living cells is required to explore the relationship between such structural organization and its functional roles. To study the structural dynamics of genomic elements, we have developed an improved CRISPR-based imaging system for visualization of arbitrary non-repetitive gene loci in living cells. Use of split-fluorescent proteins nearly eliminated background fluorescence and signals from non-specific aggregation, allowing reliable long-term tracking of genomic loci. Stochastic optical reconstruction microscopy of genomic loci in living cells revealed ultrastructural dynamics within the loci, suggesting further extension of the method to live super-resolved imaging of topologically associated domains. These approaches provide novel tools to study the mechanism of reorganizing chromosomes and its relevance in gene regulation. Conference Object Arctic ScholarWorks@UNIST (Ulsan National Institute of Science and Technology) |
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ScholarWorks@UNIST (Ulsan National Institute of Science and Technology) |
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Recent studies have suggested that chromosomes are hierarchically organized into topologically associated domains. Direct visualization of the genomic elements in living cells is required to explore the relationship between such structural organization and its functional roles. To study the structural dynamics of genomic elements, we have developed an improved CRISPR-based imaging system for visualization of arbitrary non-repetitive gene loci in living cells. Use of split-fluorescent proteins nearly eliminated background fluorescence and signals from non-specific aggregation, allowing reliable long-term tracking of genomic loci. Stochastic optical reconstruction microscopy of genomic loci in living cells revealed ultrastructural dynamics within the loci, suggesting further extension of the method to live super-resolved imaging of topologically associated domains. These approaches provide novel tools to study the mechanism of reorganizing chromosomes and its relevance in gene regulation. |
format |
Conference Object |
author |
Kim, Hajin |
spellingShingle |
Kim, Hajin Toward Live Visualization of Chromosome Dynamics and Structure |
author_facet |
Kim, Hajin |
author_sort |
Kim, Hajin |
title |
Toward Live Visualization of Chromosome Dynamics and Structure |
title_short |
Toward Live Visualization of Chromosome Dynamics and Structure |
title_full |
Toward Live Visualization of Chromosome Dynamics and Structure |
title_fullStr |
Toward Live Visualization of Chromosome Dynamics and Structure |
title_full_unstemmed |
Toward Live Visualization of Chromosome Dynamics and Structure |
title_sort |
toward live visualization of chromosome dynamics and structure |
publisher |
Umea University |
publishDate |
2019 |
url |
https://scholarworks.unist.ac.kr/handle/201301/33795 |
genre |
Arctic |
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Arctic |
op_relation |
The Arctic Biophysics Meeting on Epigenetics and Chromosome Dynamics https://scholarworks.unist.ac.kr/handle/201301/33795 22093 |
_version_ |
1766294284131106816 |