Joint modeling of histone modifications in 3D genome shape through Hi-C interaction graph

Title Joint modeling of histone modifications in 3D genome shape through Hi-C interaction graph
Author Sefer, Emre
Publication Date: 2021
Publication Place - Springer
Subject Algorithms, Bioinformatics, Epigenetics, Hi-C, Set cover
Type Document
Language English
Digital Yes
Manuscript No
Library: Özyeğin University
Library Asset ID 978-303065350-7
Record ID 053d5739-acf3-454a-befb-a9bc652ccc6c
Library Location Computer Science
Date 2021
Sample Text Chromosome conformation capture experiments such as Hi-C are used to map the three-dimensional spatial organization of genomes. Even though Hi-C interactions are not biased towards any of the histone modifications, previous analysis has revealed denser interactions around many histone modifications. Nevertheless, simultaneous effects of these modifications in Hi-C interaction graph have not been fully characterized yet, limiting our understanding of genome shape. Here, we propose Coverage Hi-C to decompose Hi-C interaction graph in terms of known histone modifications. Coverage Hi-C is based on set multicover with pairs, where each Hi-C interaction is covered by histone modification pairs. We find 4 histone modifications H3K4me1, H3K4me3, H3K9me3, H3K27ac to be significantly predictive of most Hi-C interactions across species and cell types. Coverage Hi-C is quite effective in predicting Hi-C interactions and topologically-associated domains (TADs) in one species, given it is trained on another species or cell types.
DOI 10.1007/978-3-030-65351-4_33
Cilt 944
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Joint modeling of histone modifications in 3D genome shape through Hi-C interaction graph

Author Sefer, Emre
Publication Date 2021
Publication Place - Springer
Subject Algorithms, Bioinformatics, Epigenetics, Hi-C, Set cover
Type Document
Language English
Digital Yes
Manuscript No
Library Özyeğin University
Library Asset ID 978-303065350-7
Record ID 053d5739-acf3-454a-befb-a9bc652ccc6c
Library Location Computer Science
Date 2021
Sample Text Chromosome conformation capture experiments such as Hi-C are used to map the three-dimensional spatial organization of genomes. Even though Hi-C interactions are not biased towards any of the histone modifications, previous analysis has revealed denser interactions around many histone modifications. Nevertheless, simultaneous effects of these modifications in Hi-C interaction graph have not been fully characterized yet, limiting our understanding of genome shape. Here, we propose Coverage Hi-C to decompose Hi-C interaction graph in terms of known histone modifications. Coverage Hi-C is based on set multicover with pairs, where each Hi-C interaction is covered by histone modification pairs. We find 4 histone modifications H3K4me1, H3K4me3, H3K9me3, H3K27ac to be significantly predictive of most Hi-C interactions across species and cell types. Coverage Hi-C is quite effective in predicting Hi-C interactions and topologically-associated domains (TADs) in one species, given it is trained on another species or cell types.
DOI 10.1007/978-3-030-65351-4_33
Cilt 944
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