Evidence map›Paper›PMID 36200812›Full record

ArticleNucleic acids research2022

rRNA expansion segment 7 in eukaryotes: from Signature Fold to tentacles.

Marcin Biesiada, Michael Y Hu, Loren Dean Williams, Katarzyna J Purzycka, Anton S Petrov

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 23% of its field
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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Evidence for strong purifying selection of humanProceedings of the National Academy of Sciences of the United States of America · 2026
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  7. TRMT1L-catalyzed mCell reports · 2025
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  8. TRMT1L-catalyzed mbioRxiv : the preprint server for biology · 2024
    Article
  9. Article
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  11. Article
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

5 authors at 2 institutions in 2 countries.

Marcin BiesiadaInstitute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland.
Michael Y HuCenter for the Origins of Life, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Loren Dean WilliamsCenter for the Origins of Life, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0002-7215-4194
Katarzyna J PurzyckaInstitute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland.
Anton S PetrovCenter for the Origins of Life, Georgia Institute of Technology, Atlanta, GA 30332, USA.ORCID 0000-0003-3359-7299
Georgia Institute of Technology · USInstitute of Bioorganic Chemistry, Polish Academy of Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ribosomal core is universally conserved across the tree of life. However, eukaryotic ribosomes contain diverse rRNA expansion segments (ESs) on their surfaces. Sites of ES insertions are predicted from sites of insertion of micro-ESs in archaea. Expansion segment 7 (ES7) is one of the most diverse regions of the ribosome, emanating from a short stem loop and ranging to over 750 nucleotides in mammals. We present secondary and full-atom 3D structures of ES7 from species spanning eukaryotic diversity. Our results are based on experimental 3D structures, the accretion model of ribosomal evolution, phylogenetic relationships, multiple sequence alignments, RNA folding algorithms and 3D modeling by RNAComposer. ES7 contains a distinct motif, the 'ES7 Signature Fold', which is generally invariant in 2D topology and 3D structure in all eukaryotic ribosomes. We establish a model in which ES7 developed over evolution through a series of elementary and recursive growth events. The data are sufficient to support an atomic-level accretion path for rRNA growth. The non-monophyletic distribution of some ES7 features across the phylogeny suggests acquisition via convergent processes. And finally, illustrating the power of our approach, we constructed the 2D and 3D structure of the entire LSU rRNA of Mus musculus.

Indexed as

EukaryotaRNA, RibosomalAnimalsMammalsMiceNucleic Acid ConformationNucleotidesPhylogenyRibosomesNucleotidesRNA, Ribosomal

Identifiers

PMID36200812
PMCPMC9561286
OpenAlexW4302761287

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.