ArticleNucleic acids research2025
Fungal chromatin remodeler Isw1 modulates translation via regulating tRNA transcription.
Article in Nucleic acids research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Genetic and Epigenetic Mechanisms Underlying Reversible Adaptive Responses in Fungi.Journal of fungi (Basel, Switzerland) · 2026Review
- A conserved Lsm8-exosome module maintains RNA splicing fidelity to control fungal stress adaptation and virulence.Stress biology · 2026Article
- Grape Leaf Cultivar Identification in Complex Backgrounds with an Improved MobileNetV3-Small Model.Plants (Basel, Switzerland) · 2025Article
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Authors and funding
8 authors.
Funding
Abstract
Chromatin dynamics are essential for regulating DNA processes in response to environmental stimuli. Although ISWI-family enzymes are known to remodel chromatin by sliding nucleosomes in budding yeast, their functional roles and outputs in eukaryotes remain largely unknown. In this study, we investigated chromatin accessibility in the phytopathogenic fungus Fusarium graminearum treated with and without putrescine, a compound that rapidly induces the biosynthesis of the mycotoxin deoxynivalenol (DON). Putrescine globally alters chromatin accessibility, with the ATP-dependent chromatin remodeler FgIsw1 emerging as a key regulator. Unexpectedly, deletion of FgIsw1 did not affect the transcription of DON biosynthesis genes (Tri) but significantly disrupted transfer RNA (tRNA) transcription, leading to a dramatic decline in translation of DON biosynthesis enzymes. Mechanistically, FgIsw1 maintains nucleosome phasing in tRNA chromatin regions, ensuring efficient tRNA transcription. As a result, ΔFgIsw1 was unable to produce DON and lost its virulence on the host plant. These results highlight a novel role of chromatin remodelers in regulating protein translation through the control of tRNA transcription.
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