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Localization and expression dynamics of an RNA Pol I core subunit in response to fasting in C. elegans.

MicroPubl. Biol. 2025, DOI: 10.17912/micropub.biology.001472 (2025)
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Nutrient availability influences ribosome biogenesis, requiring dynamic regulation of RNA Pol I activity. In C. elegans , fasting reduces pre-rRNA levels. However, whether this reduction stems from a regulation of RNA Pol I expression remains unclear. Here, we examined how the nutritional status affects the localization and expression levels of RPOA-2 , a core subunit of RNA Pol I, in the intestine. We found that RPOA-2 retains its nucleolar localization regardless of animals being fed, fasted or fed after fasting. Interestingly, fasting reduces RPOA-2 protein amounts which are restored upon feeding. These findings suggest that the availability of RNA Pol I core subunits contributes to the regulation of rDNA transcription in response to nutrients.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
ISSN (print) / ISBN 2578-9430
e-ISSN 2578-9430
Quellenangaben Volume: 2025 Issue: , Pages: , Article Number: , Supplement: ,
Publishing Place Pasadena, CA
Non-patent literature Publications
Reviewing status Peer reviewed