Evidence map›Paper›PMID 18227282›Full record

ArticleThe Journal of cell biology2008

Dimeric heat shock protein 40 binds radial spokes for generating coupled power strokes and recovery strokes of 9 + 2 flagella.

Chun Yang, Heather A Owen, Pinfen Yang

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 54 citations in OpenAlex.

  1. International journal of molecular sciences · 2023
    Review
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  8. J domain independent functions of J proteins.Cell stress & chaperones · 2016
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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

3 authors at 2 institutions in 1 country.

Chun YangDepartment of Biological Sciences, Marquette University, Milwaukee, WI 53233, USA.
Heather A Owen
Pinfen Yang
Marquette University · USUniversity of Wisconsin–Milwaukee · US

Funding

REGULATION OF DYNEIN-DRIVEN FLAGELLAR MOTILITYR01GM068101 · NIGMS · MARQUETTE UNIVERSITY · PI YANG, PINFEN · 2003 to 2009
$1.3M
NIGMS NIH HHS GM068101NIGMS NIH HHS R01 GM068101
6 · The paper itself

Abstract

T-shape radial spokes regulate flagellar beating. However, the precise function and molecular mechanism of these spokes remain unclear. Interestingly, Chlamydomonas reinhardtii flagella lacking a dimeric heat shock protein (HSP) 40 at the spokehead-spokestalk juncture appear normal in length and composition but twitch actively while cells jiggle without procession, resembling a central pair (CP) mutant. HSP40(-) cells begin swimming upon electroporation with recombinant HSP40. Surprisingly, the rescue doesn't require the signature DnaJ domain. Furthermore, the His-Pro-Asp tripeptide that is essential for stimulating HSP70 adenosine triphosphatase diverges in candidate orthologues, including human DnaJB13. Video microscopy reveals hesitance in bend initiation and propagation as well as irregular stalling and stroke switching despite fairly normal waveform. The in vivo evidence suggests that the evolutionarily conserved HSP40 specifically transforms multiple spoke proteins into stable conformation capable of mechanically coupling the CP with dynein motors. This enables 9 + 2 cilia and flagella to bend and switch to generate alternate power strokes and recovery strokes.

Indexed as

Algal ProteinsAmino Acid SequenceAnimalsAxonemeChlamydomonas reinhardtiiFlagellaHSP40 Heat-Shock ProteinsHumansMolecular Sequence DataPhylogenySequence AlignmentAlgal ProteinsHSP40 Heat-Shock Proteins

Identifiers

PMID18227282
PMCPMC2213584
OpenAlexW2100364648

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.