Spatial chromatin accessibility sequencing resolves high-order spatial interactions of epigenomic markers

Autor: Yeming Xie, Fengying Ruan, Yaning Li, Meng Luo, Chen Zhang, Zhichao Chen, Zhe Xie, Zhe Weng, Weitian Chen, Wenfang Chen, Yitong Fang, Yuxin Sun, Mei Guo, Juan Wang, Shouping Xu, Hongqi Wang, Chong Tang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: eLife, Vol 12 (2024)
Druh dokumentu: article
ISSN: 2050-084X
DOI: 10.7554/eLife.87868
Popis: As the genome is organized into a three-dimensional structure in intracellular space, epigenomic information also has a complex spatial arrangement. However, most epigenetic studies describe locations of methylation marks, chromatin accessibility regions, and histone modifications in the horizontal dimension. Proper spatial epigenomic information has rarely been obtained. In this study, we designed spatial chromatin accessibility sequencing (SCA-seq) to resolve the genome conformation by capturing the epigenetic information in single-molecular resolution while simultaneously resolving the genome conformation. Using SCA-seq, we are able to examine the spatial interaction of chromatin accessibility (e.g. enhancer–promoter contacts), CpG island methylation, and spatial insulating functions of the CCCTC-binding factor. We demonstrate that SCA-seq paves the way to explore the mechanism of epigenetic interactions and extends our knowledge in 3D packaging of DNA in the nucleus.
Databáze: Directory of Open Access Journals