Evidence map›Paper›PMID 40220997›Full record

ArticleThe Journal of biological chemistry2025

Structural and biochemical characterization of the 3'-5' tRNA splicing ligases.

Sebastian Chamera, Weronika Zajko, Mariusz Czarnocki-Cieciura, Marcin Jaciuk, Łukasz Koziej, Jakub Nowak, Krzysztof Wycisk, Małgorzata Sroka, Andrzej Chramiec-Głąbik, Mirosław Śmietański and 5 more

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Enzymology of the metazoan tRNA ligase complex: a lifetime in cycles.Cellular and molecular life sciences : CMLS · 2026
    Review
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

15 authors.

Sebastian ChameraLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Weronika ZajkoLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Mariusz Czarnocki-CieciuraLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Marcin JaciukMalopolska Centre of Biotechnology (MCB), Jagiellonian University, Krakow, Poland.
Łukasz KoziejMalopolska Centre of Biotechnology (MCB), Jagiellonian University, Krakow, Poland.
Jakub NowakMalopolska Centre of Biotechnology (MCB), Jagiellonian University, Krakow, Poland.
Krzysztof WyciskLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Małgorzata SrokaLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Andrzej Chramiec-GłąbikMalopolska Centre of Biotechnology (MCB), Jagiellonian University, Krakow, Poland.
Mirosław ŚmietańskiLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland; Explorna Therapeutics sp. z o.o., Warsaw, Poland.
Filip GołębiowskiLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland.
Marcin WarmińskiDivision of Biophysics, Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland.
Jacek JemielityCentre of New Technologies, University of Warsaw, Warsaw, Poland.
Sebastian GlattMalopolska Centre of Biotechnology (MCB), Jagiellonian University, Krakow, Poland; Department for Biological Sciences and Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria.
Marcin NowotnyLaboratory of Protein Structure, International Institute of Molecular and Cell Biology, Warsaw, Poland. Electronic address: mnowotny@iimcb.gov.pl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In archaea and metazoa, tRNA exons are ligated by the RNA ligases RtcB and RTCB, respectively. The metazoan RTCB forms a stable complex with four additional subunits, DDX1, FAM98B, CGI99, and ASHWIN. The role and assembly of these four components remain elusive. Furthermore, we lack structural information of how RNA substrates are recognized by 3'-5' tRNA ligases. Here, we use thiol-based chemical crosslinking to confirm the involvement of specific residues of RtcB in RNA binding, and we present a cryo-EM structure of the purified five-subunit Danio rerio tRNA ligase complex. The structure implies that the DDX1 helicase module is mobile and can modulate the activity of RTCB. Taken together, the presented results enhance our mechanistic understanding of RNA binding by 3'-5' tRNA splicing ligases and architecture of the metazoan tRNA ligase complex.

Indexed as

RNA Ligase (ATP)RNA SplicingRNA, TransferZebrafish ProteinsAnimalsCryoelectron MicroscopyDEAD-box RNA HelicasesModels, MolecularZebrafishDEAD-box RNA HelicasesRNA Ligase (ATP)RNA, TransferZebrafish Proteinspre-tRNA splicingprotein complexprotein–nucleic acid interactionprotein structureRNA-binding proteinRNA splicingRTCBstructural biologytRNAtRNA ligase complex

Identifiers

PMID40220997
PMCPMC12135372

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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.