Evidence map›Paper›PMID 22733763›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Cryoelectron tomography reveals doublet-specific structures and unique interactions in the I1 dynein.

Thomas Heuser, Cynthia F Barber, Jianfeng Lin, Jeremy Krell, Matthew Rebesco, Mary E Porter, Daniela Nicastro

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

62 citing papers in PubMed, 101 citations in OpenAlex.

  1. Preclinical human models of primary ciliary dyskinesia.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Axonemal dynein contributions to flagellar beat types and waveforms.bioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Article
  5. mSphere · 2024
    Article
  6. Article
  7. Frontiers in cell and developmental biology · 2024
    Review
  8. Article
  9. Article
  10. A look under the hood of the machine that makes cilia beat.Nature structural & molecular biology · 2022
    Article
  11. Article
  12. PCD Genes-From Patients to Model Organisms and Back to Humans.International journal of molecular sciences · 2022
    Review
  13. Article
  14. Structure and dynamics of photoreceptor sensory cilia.Pflugers Archiv : European journal of physiology · 2021
    Review
  15. Article
  16. Structural organization of the intermediate and light chain complex of Chlamydomonas ciliary I1 dynein.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  17. Review
  18. Article
  19. Article
  20. Review

2 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

7 authors at 2 institutions in 1 country.

Thomas HeuserBiology Department, Rosenstiel Center, Brandeis University, Waltham, MA 02454, USA.
Cynthia F Barber
Jianfeng Lin
Jeremy Krell
Matthew Rebesco
Mary E Porter
Daniela Nicastro
Brandeis University · USUniversity of Minnesota · US

Funding

Structure and Function of Complexes that Regulate Ciliary MotilityR01GM083122 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI Daniela Nicastro · 2007 to 2026
$6.2M
Assembly, Targeting, And Regulation Of Dynein MotorsR01GM055667 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI PORTER, MARY E. · 1997 to 2023
$5.4M
Assembly , Targeting, and Regulation of Dynein MotorsR37GM055667 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI PORTER, MARY E. · 2005 to 2014
$4.0M
NIGMS NIH HHS GM083122NIGMS NIH HHS GM55667NIGMS NIH HHS R01 GM055667NIGMS NIH HHS R01 GM083122NIGMS NIH HHS R37 GM055667
6 · The paper itself

Abstract

Cilia and flagella are highly conserved motile and sensory organelles in eukaryotes, and defects in ciliary assembly and motility cause many ciliopathies. The two-headed I1 inner arm dynein is a critical regulator of ciliary and flagellar beating. To understand I1 architecture and function better, we analyzed the 3D structure and composition of the I1 dynein in Chlamydomonas axonemes by cryoelectron tomography and subtomogram averaging. Our data revealed several connections from the I1 dynein to neighboring structures that are likely to be important for assembly and/or regulation, including a tether linking one I1 motor domain to the doublet microtubule and doublet-specific differences potentially contributing to the asymmetrical distribution of dynein activity required for ciliary beating. We also imaged three I1 mutants and analyzed their polypeptide composition using 2D gel-based proteomics. Structural and biochemical comparisons revealed the likely location of the regulatory IC138 phosphoprotein and its associated subcomplex. Overall, our studies demonstrate that I1 dynein is connected to multiple structures within the axoneme, and therefore ideally positioned to integrate signals that regulate ciliary motility.

Indexed as

AxonemeChlamydomonasCryoelectron MicroscopyDyneinsImage Processing, Computer-AssistedImmunoblottingMicrotubulesMutationProteomicsSignal TransductionDyneins

Identifiers

PMID22733763
PMCPMC3409752
OpenAlexW1974369213

What OpenQuestion holds

Textmetadata
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.