BIT: Bayesian Identification of Transcriptional regulators from epigenomics-based query region sets

Zeyu Lu, Lin Xu () and Xinlei Wang ()
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Zeyu Lu: Southern Methodist University
Lin Xu: University of Texas Southwestern Medical Center
Xinlei Wang: University of Texas at Arlington

Nature Communications, 2025, vol. 16, issue 1, 1-17

Abstract: Abstract Transcriptional regulators (TRs) are master controllers of gene expression and play a critical role in both normal tissue development and disease progression. However, existing computational methods for identification of TRs regulating specific biological processes have significant limitations, such as relying on distance on a linear chromosome or binding motifs that have low specificity. Many also use statistical tests in ways that lack interpretability and rigorous confidence measures. We introduce BIT, a Bayesian hierarchical model for in-silico TR identification. Leveraging a comprehensive library of TR ChIP-seq data, BIT offers a fully integrated Bayesian approach to assess genome-wide consistency between user-provided epigenomic profiling data and the TR binding library, enabling the identification of critical TRs while quantifying uncertainty. It avoids estimation and inference in a sequential manner or numerous isolated statistical tests, thereby enhancing accuracy and interpretability. BIT successfully identifies perturbed TRs in perturbation experiments, functionally essential TRs in various cancer types, and cell-type-specific TRs within heterogeneous cell populations, offering deeper biological insights into transcriptional regulation.

Date: 2025
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DOI: 10.1038/s41467-025-60269-4

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