Evidence map›Paper›PMID 27922015›Full record

ArticleNature microbiology2016

CryoEM structure of the Methanospirillum hungatei archaellum reveals structural features distinct from the bacterial flagellum and type IV pilus.

Nicole Poweleit, Peng Ge, Hong H Nguyen, Rachel R Ogorzalek Loo, Robert P Gunsalus, Z Hong Zhou

Erratum issuedAbstract read
In one paragraph

Article in Nature microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

58 citing papers in PubMed.

  1. Article
  2. Complete genomes of the hydrogenotrophic methanogen speciesMicrobiology resource announcements · 2025
    Article
  3. Article
  4. Cell surface differences within the genusJournal of bacteriology · 2025
    Review
  5. Article
  6. How Does the Archaellum Work?Biomolecules · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. The evolution of archaeal flagellar filaments.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Nicole PoweleitDepartment of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, California 90095, USA.
Peng GeDepartment of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, California 90095, USA.
Hong H NguyenDepartment of Chemistry and Biochemistry, UCLA, Los Angeles 90095, UCLA, Los Angeles (UCLA), Los Angeles, California 90095, USA.
Rachel R Ogorzalek LooDepartment of Chemistry and Biochemistry, UCLA, Los Angeles 90095, UCLA, Los Angeles (UCLA), Los Angeles, California 90095, USA.ORCID 0000-0002-0580-2833
Robert P GunsalusDepartment of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, California 90095, USA.
Z Hong ZhouDepartment of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, California 90095, USA.

Funding

UCLA Clinical and Translational Science InstituteUL1TR000124 · NCATS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DUBINETT, STEVEN M. · 2012 to 2015
$57.0M
Genome Structure, Transcription and Packaging of dsRNA VirusesR01AI094386 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Z Hong ZHOU · 2012 to 2026
$6.0M
High-Resolution CryoEM Reconstruction of Large ComplexesR01GM071940 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI ZHOU, Z HONG · 2006 to 2025
$5.0M
Biotechnology Training in Biomedical Sciences and EngineeringT32GM067555 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GU, ZHEN · 2005 to 2019
$2.8M
HIGH-END CRYOEM INSTRUMENT FOR UCLA ELECTRON IMAGING CTR FOR NANOMACHINES: AIDSS10RR023057 · NCRR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ZHOU, Z HONG · 2006 to 2006
$1.6M
Direct Detection Device for atomic resolution cryoEM of macromolecular complexesS10OD018111 · OD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ZHOU, Z HONG · 2014 to 2014
$598k
MALDI TOF/TOF Mass Spectrometer for Imaging Thin Tissue SectionsS10RR025600 · NCRR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LOO, JOSEPH A · 2010 to 2010
$466k
NCATS NIH HHS UL1 TR000124NCRR NIH HHS S10 RR023057NCRR NIH HHS S10 RR025600NIAID NIH HHS R01 AI094386NIGMS NIH HHS R01 GM071940NIGMS NIH HHS T32 GM067555NIH HHS S10 OD018111
6 · The paper itself

Abstract

Archaea use flagella known as archaella-distinct both in protein composition and structure from bacterial flagella-to drive cell motility, but the structural basis of this function is unknown. Here, we report an atomic model of the archaella, based on the cryo electron microscopy (cryoEM) structure of the Methanospirillum hungatei archaellum at 3.4 Å resolution. Each archaellum contains ∼61,500 archaellin subunits organized into a curved helix with a diameter of 10 nm and average length of 10,000 nm. The tadpole-shaped archaellin monomer has two domains, a β-barrel domain and a long, mildly kinked α-helix tail. Our structure reveals multiple post-translational modifications to the archaella, including six O-linked glycans and an unusual N-linked modification. The extensive interactions among neighbouring archaellins explain how the long but thin archaellum maintains the structural integrity required for motility-driving rotation. These extensive inter-subunit interactions and the absence of a central pore in the archaellum distinguish it from both the bacterial flagellum and type IV pili.

Indexed as

Cryoelectron MicroscopyFlagellaMethanospirillum

Identifiers

PMID27922015
PMCPMC5695567

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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.