ArticleACS central science2024
Loss of Diphthamide Increases DNA Replication Stress in Mammalian Cells by Modulating the Translation of RRM1.
Article in ACS central science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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
1 citing paper in PubMed.
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Authors and funding
3 authors.
Funding
Abstract
Diphthamide (DPH) is a highly conserved post-translational modification exclusively present in eukaryotic translation elongation factor 2 (eEF2), with its loss leading to embryonic lethality in mice and developmental disorders in humans. In this study, we unveil the role of diphthamide in mammalian cell DNA damage stress, with a particular emphasis on DNA replication stress. We developed a systematic strategy to identify human proteins affected by diphthamide with a combination of computational profiling and quantitative proteomics. Through this approach, we determine that the translation of RRM1 is modulated by diphthamide via -1 frameshifting. Importantly, our results reveal that the dysregulation of RRM1 translation in DPH-deficient cells is causally linked to elevated DNA replication stress. These findings provide a potential explanation for how diphthamide deficiency leads to cancer and developmental defects in humans.
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Registered trials
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