Improved simultaneous mapping of epigenetic features and 3D chromatin structure via ViCAR

Autor: Sean M. Flynn, Somdutta Dhir, Krzysztof Herka, Colm Doyle, Larry Melidis, Angela Simeone, Winnie W. I. Hui, Rafael de Cesaris Araujo Tavares, Stefan Schoenfelder, David Tannahill, Shankar Balasubramanian
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Genome Biology, Vol 25, Iss 1, Pp 1-10 (2024)
Druh dokumentu: article
ISSN: 1474-760X
DOI: 10.1186/s13059-024-03377-6
Popis: Abstract Methods to measure chromatin contacts at genomic regions bound by histone modifications or proteins are important tools to investigate chromatin organization. However, such methods do not capture the possible involvement of other epigenomic features such as G-quadruplex DNA secondary structures (G4s). To bridge this gap, we introduce ViCAR (viewpoint HiCAR), for the direct antibody-based capture of chromatin interactions at folded G4s. Through ViCAR, we showcase the first G4-3D interaction landscape. Using histone marks, we also demonstrate how ViCAR improves on earlier approaches yielding increased signal-to-noise. ViCAR is a practical and powerful tool to explore epigenetic marks and 3D genome interactomes.
Databáze: Directory of Open Access Journals