RRC ID 83921
Author 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.
Title A comprehensive Schizosaccharomyces pombe atlas of physical transcription factor interactions with proteins and chromatin.
Journal Mol Cell
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.
Volume 85(7)
Pages 1426-1444.e8
Published 2025-4-3
DOI 10.1016/j.molcel.2025.01.032
PII S1097-2765(25)00099-1
PMID 40015273
MeSH Binding Sites Chromatin* / genetics Chromatin* / metabolism Chromatin Immunoprecipitation Sequencing Gene Expression Regulation, Fungal Protein Binding Schizosaccharomyces* / genetics Schizosaccharomyces* / metabolism Schizosaccharomyces pombe Proteins* / genetics Schizosaccharomyces pombe Proteins* / metabolism Transcription Factors* / genetics Transcription Factors* / metabolism
IF 15.584
Resource
Yeast FY38775