Evidence map›Paper›PMID 35022401›Full record

ArticleNature communications2022

Structural basis of prokaryotic ubiquitin-like protein engagement and translocation by the mycobacterial Mpa-proteasome complex.

Mikhail Kavalchuk, Ahmad Jomaa, Andreas U Müller, Eilika Weber-Ban

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  4. Real-time capture of σNature communications · 2025
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  5. Review
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  9. Identification of a depupylation regulator for an essential enzyme inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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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

4 authors at 1 institution in 2 countries.

Mikhail Kavalchuk *ETH Zurich, Institute of Molecular Biology & Biophysics, CH-8093, Zurich, Switzerland.ORCID http://orcid.org/0000-0003-3543-7651
Ahmad Jomaa *ETH Zurich, Institute of Molecular Biology & Biophysics, CH-8093, Zurich, Switzerland. ahmad.jomaa@mol.biol.ethz.ch.ORCID http://orcid.org/0000-0002-4786-934X
Andreas U MüllerETH Zurich, Institute of Molecular Biology & Biophysics, CH-8093, Zurich, Switzerland.ORCID http://orcid.org/0000-0003-3002-3695
Eilika Weber-BanETH Zurich, Institute of Molecular Biology & Biophysics, CH-8093, Zurich, Switzerland. eilika@mol.biol.ethz.ch.ORCID http://orcid.org/0000-0002-5773-9274
ETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proteasomes are present in eukaryotes, archaea and Actinobacteria, including the human pathogen Mycobacterium tuberculosis, where proteasomal degradation supports persistence inside the host. In mycobacteria and other members of Actinobacteria, prokaryotic ubiquitin-like protein (Pup) serves as a degradation tag post-translationally conjugated to target proteins for their recruitment to the mycobacterial proteasome ATPase (Mpa). Here, we use single-particle cryo-electron microscopy to determine the structure of Mpa in complex with the 20S core particle at an early stage of pupylated substrate recruitment, shedding light on the mechanism of substrate translocation. Two conformational states of Mpa show how substrate is translocated stepwise towards the degradation chamber of the proteasome core particle. We also demonstrate, in vitro and in vivo, the importance of a structural feature in Mpa that allows formation of alternating charge-complementary interactions with the proteasome resulting in radial, rail-guided movements during the ATPase conformational cycle.

Indexed as

ActinobacteriaAdenosine TriphosphatasesBacterial ProteinsCryoelectron MicroscopyHumansModels, MolecularMycobacterium tuberculosisProkaryotic CellsProteasome Endopeptidase ComplexUbiquitinsAdenosine TriphosphatasesBacterial ProteinsMpa protein, Mycobacterium tuberculosisProteasome Endopeptidase ComplexUbiquitins

Identifiers

PMID35022401
PMCPMC8755798
OpenAlexW4205240517

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.