Evidence map›Paper›PMID 23416110›Full record

ArticleMolecular cell2013

Insights into FlaI functions in archaeal motor assembly and motility from structures, conformations, and genetics.

Sophia Reindl, Abhrajyoti Ghosh, Gareth J Williams, Kerstin Lassak, Tomasz Neiner, Anna-Lena Henche, Sonja-Verena Albers, John A Tainer

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
8.3field-weighted citation impact, top 2% 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

65 citing papers in PubMed, 110 citations in OpenAlex.

  1. Journal of bacteriology · 2026
    Review
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  6. Electron Cryo-Tomography Reveals thebioRxiv : the preprint server for biology · 2025
    Article
  7. Article
  8. Article
  9. How Does the Archaellum Work?Biomolecules · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Archaella Isolation.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  18. Article
  19. Review
  20. Article

5 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 2 countries.

Sophia ReindlLife Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Abhrajyoti Ghosh
Gareth J Williams
Kerstin Lassak
Tomasz Neiner
Anna-Lena Henche
Sonja-Verena Albers
John A Tainer
Max Planck Institute for Terrestrial Microbiology · DELawrence Berkeley National Laboratory · US

Funding

Structure and Assembly of Type IV Pili &Related SystemsR01AI022160 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI TAINER, JOHN A. · 1985 to 2009
$3.2M
MINOS (Macromolecular Insights on Nucleic acids Optimized by Scattering)R01GM105404 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI TAINER, JOHN A. · 2012 to 2015
$2.1M
NIAID NIH HHS AI022160NIAID NIH HHS R01 AI022160NIGMS NIH HHS GM105404NIGMS NIH HHS R01 GM105404
6 · The paper itself

Abstract

Superfamily ATPases in type IV pili, type 2 secretion, and archaella (formerly archaeal flagella) employ similar sequences for distinct biological processes. Here, we structurally and functionally characterize prototypical superfamily ATPase FlaI in Sulfolobus acidocaldarius, showing FlaI activities in archaeal swimming-organelle assembly and movement. X-ray scattering data of FlaI in solution and crystal structures with and without nucleotide reveal a hexameric crown assembly with key cross-subunit interactions. Rigid building blocks form between N-terminal domains (points) and neighboring subunit C-terminal domains (crown ring). Upon nucleotide binding, these six cross-subunit blocks move with respect to each other and distinctly from secretion and pilus ATPases. Crown interactions and conformations regulate assembly, motility, and force direction via a basic-clamp switching mechanism driving conformational changes between stable, backbone-interconnected moving blocks. Collective structural and mutational results identify in vivo functional components for assembly and motility, phosphate-triggered rearrangements by ATP hydrolysis, and molecular predictors for distinct ATPase superfamily functions.

Indexed as

Adenosine TriphosphatasesAdenosine TriphosphateAmino Acid SequenceAmino Acid SubstitutionArchaeal ProteinsCatalytic DomainCrystallography, X-RayFlagellaHydrolysisModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedProtein BindingProtein MultimerizationProtein Structure, QuaternaryProtein Structure, SecondaryAdenosine TriphosphatasesAdenosine TriphosphateArchaeal Proteins

Identifiers

PMID23416110
PMCPMC3615136
OpenAlexW1998618368

What OpenQuestion holds

Textmetadata
LicenceTDM
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.