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| Status |
Public on Jun 06, 2021 |
| Title |
Topological isolation as a mechanism for precise control of developmental regulators in mammalian genomes [RNA-seq II] |
| Organism |
Homo sapiens |
| Experiment type |
Expression profiling by high throughput sequencing
|
| Summary |
Recent investigation of insulated chromosome structures suggests their crucial role in controlling proper gene expression. However, it remains unclear whether developmental regulators can be precisely controlled by such insulated structures and whether developmental failure is caused by disrupting the structure boundaries. Here we identified topologically insulated regions (TIRs) from deeply sequenced human embryonic stem cell (hESC) Hi-C data and analyzed the gene distribution across TIRs. We find a notable enrichment of developmental regulators isolated from other genes by TIRs and show that the boundary CTCF sites are highly conserved across species. Perturbation of such boundaries in hESCs leads to failure to properly differentiate. Enhancer activity is restricted by such boundaries, further pointing towards their regulatory importance. Finally, germline mutations affecting such boundaries are subject to purifying selection and are underrepresented in the human population. Our findings provide new insights into mammalian genome organization and suggest a possible role of gene insulation through chromosomal folding structures for precise control of developmental regulators.
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| |
|
| Overall design |
RNA-Seq of rescue experiment on SOX17 upstream CTCF knockout in embryonic differentiation
|
| |
|
| Contributor(s) |
Wu H, Landshammer A, Meissner A, Michor F |
| Citation(s) |
34385432 |
| |
| Submission date |
Jan 22, 2021 |
| Last update date |
Aug 24, 2021 |
| Contact name |
Hua-Jun Wu |
| E-mail(s) |
hjwu@pku.edu.cn
|
| Organization name |
Peking University Health Science Center
|
| Department |
School of Basic Medical Sciences
|
| Lab |
Center for Precision Medicine Multi-Omics Research
|
| Street address |
8 science park road, zhongguancun life science park
|
| City |
Beijing |
| State/province |
Beijing |
| ZIP/Postal code |
102206 |
| Country |
China |
| |
|
| Platforms (1) |
| GPL20301 |
Illumina HiSeq 4000 (Homo sapiens) |
|
| Samples (15)
|
|
| This SubSeries is part of SuperSeries: |
| GSE127196 |
Topological isolation as a mechanism for precise control of developmental regulators in mammalian genomes |
|
| Relations |
| BioProject |
PRJNA694126 |
| SRA |
SRP302894 |
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