期刊
BIOESSAYS
卷 41, 期 9, 页码 -出版社
WILEY
DOI: 10.1002/bies.201900048
关键词
CCCTC-binding factor (CTCF); chromatin; cohesin; Drosophila; insulators; loop domains; topologically associated domains
资金
- Biotechnology and Biological Sciences Research Council [BB/M007081/1]
- Engineering and Physical Sciences Research Council [EP/M506436/1, EP/M507969/1, EP/N509565/1]
- BBSRC [BB/M007081/1] Funding Source: UKRI
- EPSRC [1885346] Funding Source: UKRI
The organization of the genome into topologically associated domains (TADs) appears to be a fundamental process occurring across a wide range of eukaryote organisms, and it likely plays an important role in providing an architectural foundation for gene regulation. Initial studies emphasized the remarkable parallels between TAD organization in organisms as diverse as Drosophila and mammals. However, whereas CCCTC-binding factor (CTCF)/cohesin loop extrusion is emerging as a key mechanism for the formation of mammalian topological domains, the genome organization in Drosophila appears to depend primarily on the partitioning of chromatin state domains. Recent work suggesting a fundamental conserved role of chromatin state in building domain architecture is discussed and insights into genome organization from recent studies in Drosophila are considered.
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