ArticleNature communications2025
Coupling of ribosome biogenesis and translation initiation in human mitochondria.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Pseudouridine synthase PUS1 and initiation factor mtIF2 are human mitoribosomal small subunit assembly factors.Nature communications · 2026Article
- Mechanisms and disease relevance of mitochondrial translation in humans.Nature reviews. Molecular cell biology · 2026Review
- Spatiotemporal control of mitoribosome-mediated metabolic reprogramming in cancer: implications for heterogeneity and therapeutic targeting.Frontiers in cell and developmental biology · 2026Review
- The complete mitochondrial genome of theMitochondrial DNA. Part B, Resources · 2026Article
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Authors and funding
8 authors.
Funding
Abstract
Biogenesis of mitoribosomes requires dedicated chaperones, RNA-modifying enzymes, and GTPases, and defects in mitoribosome assembly lead to severe mitochondriopathies in humans. Here, we characterize late-step assembly states of the small mitoribosomal subunit (mtSSU) by combining genetic perturbation and mutagenesis analysis with biochemical and structural approaches. Isolation of native mtSSU biogenesis intermediates via a FLAG-tagged variant of the GTPase MTG3 reveals three distinct assembly states, which show how factors cooperate to mature the 12S rRNA. In addition, we observe four distinct primed initiation mtSSU states with an incompletely matured rRNA, suggesting that biogenesis and translation initiation are not mutually exclusive processes but can occur simultaneously. Together, these results provide insights into mtSSU biogenesis and suggest a functional coupling between ribosome biogenesis and translation initiation in human mitochondria.
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