Evidence map›Paper›PMID 33993568›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2021

Structural organization of the intermediate and light chain complex of Chlamydomonas ciliary I1 dynein.

Gang Fu, Chasity Scarbrough, Kangkang Song, Nhan Phan, Maureen Wirschell, Daniela Nicastro

Abstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. mSphere · 2024
    Article
  4. Review
  5. Article
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

6 authors.

Gang FuDepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Chasity ScarbroughDepartment of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA.
Kangkang SongDepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Nhan PhanDepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Maureen WirschellDepartment of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS, USA.
Daniela NicastroDepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.ORCID 0000-0002-0122-7173

Funding

Structure and Function of Complexes that Regulate Ciliary MotilityR01GM083122 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI Daniela Nicastro · 2007 to 2026
$6.2M
FUNCTIONAL SUBSTRUCTURE OF FLAGELLAR DYNEINR01GM051173 · NIGMS · EMORY UNIVERSITY · PI SALE, WINFIELD S · 1994 to 2020
$3.6M
HHS | NIH | National Institute of General Medical Sciences (NIGMS) R01GM083122NIGMS NIH HHS R01 GM051173NIGMS NIH HHS R01 GM083122
6 · The paper itself

Abstract

Axonemal I1 dynein (dynein f) is the largest inner dynein arm in cilia and a key regulator of ciliary beating. It consists of two dynein heavy chains, and an intermediate chain/light chain (ICLC) complex. However, the structural organization of the nine ICLC subunits remains largely unknown. Here, we used biochemical and genetic approaches, and cryo-electron tomography imaging in Chlamydomonas to dissect the molecular architecture of the I1 dynein ICLC complex. Using a strain expressing SNAP-tagged IC140, tomography revealed the location of the IC140 N-terminus at the proximal apex of the ICLC structure. Mass spectrometry of a tctex2b mutant showed that TCTEX2B dynein light chain is required for the stable assembly of TCTEX1 and inner dynein arm interacting proteins IC97 and FAP120. The structural defects observed in tctex2b located these 4 subunits in the center and bottom regions of the ICLC structure, which overlaps with the location of the IC138 regulatory subcomplex, which contains IC138, IC97, FAP120, and LC7b. These results reveal the three-dimensional organization of the native ICLC complex and indicate potential protein-protein interactions that are involved in the pathway by which I1 regulates ciliary motility.

Indexed as

MutationAxonemeChlamydomonasCiliaDyneinsFlagellaPlant ProteinsProtein ConformationDyneinsPlant Proteinscryo-electron tomographyflagellaIC140ICLC complexTCTEX2B

Identifiers

PMID33993568
PMCPMC8820979

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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.