Evidence map›Paper›PMID 25851096›Full record

ArticleNature communications2015

Rio1 promotes rDNA stability and downregulates RNA polymerase I to ensure rDNA segregation.

Maria G Iacovella, Cristina Golfieri, Lucia F Massari, Sara Busnelli, Cinzia Pagliuca, Marianna Dal Maschio, Valentina Infantino, Rosella Visintin, Karl Mechtler, Sébastien Ferreira-Cerca and 1 more

Abstract read
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In one paragraph

Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed.

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  12. Erroneous ribosomal RNAs promote the generation of antisense ribosomal siRNA.Proceedings of the National Academy of Sciences of the United States of America · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Maria G IacovellaDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.ORCID 0000000345649519
Cristina GolfieriDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Lucia F MassariDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Sara BusnelliDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Cinzia PagliucaDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Marianna Dal MaschioDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Valentina InfantinoDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Rosella VisintinDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.
Karl Mechtler1] The Research Institute of Molecular Pathology, Dr Bohr-Gasse 7, Vienna 1030, Austria [2] The IMBA Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Dr Bohr-Gasse 3, Vienna 1030, Austria.
Sébastien Ferreira-CercaLehrstuhl für Biochemie III, Universität Regensburg, Universitätsstraβe 31, 93053 Regensburg, Germany.
Peter De WulfDepartment of Experimental Oncology, European Institute of Oncology, via Adamello 16, Milan 20139, Italy.ORCID 0000000197725881

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

The conserved protein kinase Rio1 localizes to the cytoplasm and nucleus of eukaryotic cells. While the roles of Rio1 in the cytoplasm are well characterized, its nuclear function remains unknown. Here we show that nuclear Rio1 promotes rDNA array stability and segregation in Saccharomyces cerevisiae. During rDNA replication in S phase, Rio1 downregulates RNA polymerase I (PolI) and recruits the histone deacetylase Sir2. Both interventions ensure rDNA copy-number homeostasis and prevent the formation of extrachromosomal rDNA circles, which are linked to accelerated ageing in yeast. During anaphase, Rio1 downregulates PolI by targeting its subunit Rpa43, causing PolI to dissociate from the rDNA. By stimulating the processing of PolI-generated transcripts at the rDNA, Rio1 allows for rDNA condensation and segregation in late anaphase. These events finalize the genome transmission process. We identify Rio1 as an essential nucleolar housekeeper that integrates rDNA replication and segregation with ribosome biogenesis.

Indexed as

AnaphaseChromosome SegregationDNA-Binding ProteinsDNA ReplicationDNA, RibosomalDown-RegulationProtein Serine-Threonine KinasesRNA Polymerase ISaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeSirtuin 2S PhaseDNA-Binding ProteinsDNA, RibosomalProtein Serine-Threonine KinasesRio1 protein, S cerevisiaeRNA Polymerase IRpa43 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeSIR2 protein, S cerevisiaeSirtuin 2

Identifiers

PMID25851096

What OpenQuestion holds

Textmetadata
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.