ArticleProceedings of the National Academy of Sciences of the United States of America2023
Human RNase P exhibits and controls distinct ribonucleolytic activities required for ordered maturation of tRNA.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- The regulation, function and disease relevance of cytoplasmic tRNAs.Nature reviews. Molecular cell biology · 2026Review
- A tRNA gene potential to activate interferon signaling involves selective termination and is suppressible by La protein/SSB.Nucleic acids research · 2025Article
- RNA Polymerase III-Transcribed RNAs in Health and Disease: Mechanisms, Dysfunction, and Future Directions.International journal of molecular sciences · 2025Review
- Non-canonical ORFs-derived protein products in mitochondria: A multifaceted exploration of their functions in health and disease.Protein science : a publication of the Protein Society · 2025Review
- Divergent molecular assembly and catalytic mechanisms between bacterial and archaeal RNase P in pre-tRNA cleavage.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- The making and breaking of tRNAs by ribonucleases.Trends in genetics : TIG · 2024Review
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Precursor tRNAs are transcribed with flanking and intervening sequences known to be processed by specific ribonucleases. Here, we show that transcription complexes of RNA polymerase III assembled on tRNA genes comprise RNase P that cleaves precursor tRNA and subsequently degrades the excised 5' leader. Degradation is based on a 3'-5' exoribonucleolytic activity carried out by the protein subunit Rpp14, as determined by biochemical and reverse genetic analyses. Neither reconstituted nor purified RNase P displays this magnesium ion-dependent, processive exoribonucleolytic activity. Markedly, knockdown of Rpp14 by RNA interference leads to a wide-ranging inhibition of cleavage of flanking and intervening sequences of various precursor tRNAs in extracts and cells. This study reveals that RNase P controls tRNA splicing complex and RNase Z for ordered maturation of nascent precursor tRNAs by transcription complexes.
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Registered trials
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