Reference - PMID:40015273 - A comprehensive Schizosaccharomyces pombe atlas of physical transcription factor interactions with proteins and chromatin.
Reference summary
- PubMed ID
- PMID:40015273
- Title
- A comprehensive Schizosaccharomyces pombe atlas of physical transcription factor interactions with proteins and chromatin.
- Authors
- Skribbe M, Soneson C, Stadler MB, Schwaiger M, Suma Sreechakram VN, Iesmantavicius V, Hess D, Moreno EPF, Braun S, Seebacher J, Smallwood SA, Bühler M
- Citation
- Mol Cell 2025 Feb 19;
- Publication year
- 2025
- Abstract
- Transcription factors (TFs) are key regulators of gene expression, yet many of their targets and modes of action remain unknown. In Schizosaccharomyces pombe, one-third of TFs are solely homology predicted, with few experimentally validated. We created a comprehensive library of 89 endogenously tagged S. pombe TFs, mapping their protein and chromatin interactions using immunoprecipitation-mass spectrometry and chromatin immunoprecipitation sequencing. Our study identified protein interactors for half the TFs, with over a quarter potentially forming stable complexes. We discovered DNA-binding sites for most TFs across 2,027 unique genomic regions, revealing motifs for 38 TFs and uncovering a complex network of extensive TF cross- and autoregulation. Characterization of the largest TF family revealed conserved DNA sequence preferences but diverse binding patterns and identified a repressive heterodimer, Ntu1/Ntu2, linked to perinuclear gene localization. Our TFexplorer webtool makes all data interactively accessible, offering insights into TF interactions and regulatory mechanisms with broad biological relevance.
