Evidence map›Paper›PMID 34652947›Full record

ArticleScience advances2021

Complete three-dimensional structures of the Lon protease translocating a protein substrate.

Shanshan Li, Kan-Yen Hsieh, Chiao-I Kuo, Szu-Hui Lee, Grigore D Pintilie, Kaiming Zhang, Chung-I Chang

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
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  4. Substrate-dependent activation of LONP1 informs on proteolytic regulation and ATPase motor function.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  7. Review
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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

7 authors.

Shanshan LiMOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Laboratory for Physical Sciences at the Microscale and Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China.ORCID 0000-0002-7041-5960
Kan-Yen HsiehInstitute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan.ORCID 0000-0001-9062-9803
Chiao-I KuoInstitute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan.
Szu-Hui LeeInstitute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan.
Grigore D PintilieDepartment of Bioengineering and James H. Clark Center, Stanford University, Stanford, CA 94305, USA.ORCID 0000-0002-0848-5335
Kaiming ZhangMOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Laboratory for Physical Sciences at the Microscale and Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China.ORCID 0000-0003-0414-4776
Chung-I ChangInstitute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan.ORCID 0000-0003-0989-1228

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lon is an evolutionarily conserved proteolytic machine carrying out a wide spectrum of biological activities by degrading misfolded damaged proteins and specific cellular substrates. Lon contains a large N-terminal domain and forms a hexameric core of fused adenosine triphosphatase and protease domains. Here, we report two complete structures of Lon engaging a substrate, determined by cryo–electron microscopy to 2.4-angstrom resolution. These structures show a multilayered architecture featuring a tensegrity triangle complex, uniquely constructed by six long N-terminal helices. The interlocked helix triangle is assembled on the top of the hexameric core to spread a web of six globular substrate-binding domains. It serves as a multipurpose platform that controls the access of substrates to the AAA+ ring, provides a ruler-based mechanism for substrate selection, and acts as a pulley device to facilitate unfolding of the translocated substrate. This work provides a complete framework for understanding the structural mechanisms of Lon.

Identifiers

PMID34652947
PMCPMC8519571

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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.