ArticlebioRxiv : the preprint server for biology2026
Acetyl-CoA Synthetase 1 regulates global histone propionylation and metabolic stress responses.
Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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Abstract
Cells and organisms are often exposed to various metabolic environments that require adaptive responses for survival. One common way cells adapt to fluctuating nutrient environments is through regulated transcription of metabolic genes. Intermediary metabolites, such as acetyl-CoA, produced by metabolic pathways, serve as cofactors for histone post-translational modifications, which in turn regulate gene expression. However, increasing evidence shows that non-acetyl acyl-CoAs, such as propionyl-CoA, participate in gene regulation during metabolic stress. In this report, we find that histone propionylation functions as a global response to glucose starvation. Furthermore, we find that Acetyl-CoA Synthetase 1 (Acs1) binds chromatin and is the primary enzyme responsible for generating propionyl-CoA in the nucleus. Together, our findings reveal that Acs1-mediated histone propionylation constitutes a novel pathway for metabolic adaptation, linking nutrient availability to chromatin modification.
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