Article ; Online: JMnorm: a novel joint multi-feature normalization method for integrative and comparative epigenomics.
2024 Volume 52, Issue 2, Page(s) e11
Abstract: Combinatorial patterns of epigenetic features reflect transcriptional states and functions of genomic regions. While many epigenetic features have correlated relationships, most existing data normalization approaches analyze each feature independently. ... ...
Abstract | Combinatorial patterns of epigenetic features reflect transcriptional states and functions of genomic regions. While many epigenetic features have correlated relationships, most existing data normalization approaches analyze each feature independently. Such strategies may distort relationships between functionally correlated epigenetic features and hinder biological interpretation. We present a novel approach named JMnorm that simultaneously normalizes multiple epigenetic features across cell types, species, and experimental conditions by leveraging information from partially correlated epigenetic features. We demonstrate that JMnorm-normalized data can better preserve cross-epigenetic-feature correlations across different cell types and enhance consistency between biological replicates than data normalized by other methods. Additionally, we show that JMnorm-normalized data can consistently improve the performance of various downstream analyses, which include candidate cis-regulatory element clustering, cross-cell-type gene expression prediction, detection of transcription factor binding and changes upon perturbations. These findings suggest that JMnorm effectively minimizes technical noise while preserving true biologically significant relationships between epigenetic datasets. We anticipate that JMnorm will enhance integrative and comparative epigenomics. |
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MeSH term(s) | Epigenesis, Genetic ; Epigenomics/methods ; Genome ; Genomics/methods ; Protein Binding ; Computational Biology/methods |
Language | English |
Publishing date | 2024-01-12 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 186809-3 |
ISSN | 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048 |
ISSN (online) | 1362-4962 ; 1362-4954 |
ISSN | 0301-5610 ; 0305-1048 |
DOI | 10.1093/nar/gkad1146 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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