Evidence map›Paper›PMID 30559193›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Cryo-EM structures of the archaeal PAN-proteasome reveal an around-the-ring ATPase cycle.

Parijat Majumder, Till Rudack, Florian Beck, Radostin Danev, Günter Pfeifer, István Nagy, Wolfgang Baumeister

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
–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

44 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  20. Simulating the directional translocation of a substrate by the AAA+ motor in the 26S proteasome.Proceedings of the National Academy of Sciences of the United States of America · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Parijat MajumderDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.
Till RudackDepartment of Biophysics, Ruhr University Bochum, 44801 Bochum, Germany.
Florian BeckDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.
Radostin DanevDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.
Günter PfeiferDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.
István NagyDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.
Wolfgang BaumeisterDepartment of Molecular Structural Biology, Max Planck Institute of Biochemistry, 82152 Martinsried, Germany; baumeist@biochem.mpg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proteasomes occur in all three domains of life, and are the principal molecular machines for the regulated degradation of intracellular proteins. They play key roles in the maintenance of protein homeostasis, and control vital cellular processes. While the eukaryotic 26S proteasome is extensively characterized, its putative evolutionary precursor, the archaeal proteasome, remains poorly understood. The primordial archaeal proteasome consists of a 20S proteolytic core particle (CP), and an AAA-ATPase module. This minimal complex degrades protein unassisted by non-ATPase subunits that are present in a 26S proteasome regulatory particle (RP). Using cryo-EM single-particle analysis, we determined structures of the archaeal CP in complex with the AAA-ATPase PAN (proteasome-activating nucleotidase). Five conformational states were identified, elucidating the functional cycle of PAN, and its interaction with the CP. Coexisting nucleotide states, and correlated intersubunit signaling features, coordinate rotation of the PAN-ATPase staircase, and allosterically regulate N-domain motions and CP gate opening. These findings reveal the structural basis for a sequential around-the-ring ATPase cycle, which is likely conserved in AAA-ATPases.

Indexed as

Cryoelectron MicroscopyAdenosine TriphosphatasesArchaeal ProteinsArchaeoglobus fulgidusProteasome Endopeptidase ComplexAdenosine TriphosphatasesArchaeal ProteinsProteasome Endopeptidase ComplexarchaeaATPase cyclecryo-EMPANproteasome

Identifiers

PMID30559193
PMCPMC6329974

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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.