Evidence map›Paper›PMID 2435743›Full record

ArticleThe Journal of cell biology1987

Movement of the actin filament bundle in Mytilus sperm: a new mechanism is proposed.

L G Tilney, Y Fukui, D J DeRosier

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1987. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.3field-weighted citation impact, top 14% 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

6 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Morphological changes in liposomes caused by polymerization of encapsulated actin and spontaneous formation of actin bundles.Proceedings of the National Academy of Sciences of the United States of America · 1992
    Article
  5. Article
  6. 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

3 authors.

L G Tilney
Y Fukui
D J DeRosier

Funding

PATTERN GENERATION OF ACTIN FILAMENTS AND MICROTUBULESR01HD014474 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI TILNEY, LEWIS G · 1985 to 1994
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NICHD NIH HHS HD-144-74NIGMS NIH HHS GM-21189
6 · The paper itself

Abstract

An actin filament bundle approximately 2-5 microns in length is present in the sperm of the blue mussel, Mytilus. In unfired sperm this bundle extends from the midpiece through a canal in the center of the nucleus to terminate on the membrane limiting the inside of the cone-shaped acrosomal vacuole. The bundle is composed of 45-65 actin filaments which are hexagonally packed and regularly cross-bridged together to form an actin paracrystal so well ordered that it has six nearly equal faces. Upon induction of the acrosomal reaction, a needle-like process is formed in a few seconds. Within this process is the actin filament bundle which appears unchanged in filament number and packing as determined by optical diffraction methods. Using fluorescein-conjugated phalloidin we were able to establish that the bundle does not change length but instead is projected anteriorly out of the midpiece and nuclear canal like an arrow. Existing mechanisms to explain this extension cannot apply. Specifically, the bundle does not increase in length (no polymerization), does not change its organization (no change in actin twist), does not change filament number (no filament sliding), and cannot move by myosin (wrong polarity). Thus we are forced to look elsewhere for a mechanism and have postulated that at least a component of this movement, or cell elongation, is the interaction of the actin filament bundle with the plasma membrane.

Indexed as

Actin CytoskeletonActinsAnimalsBivalviaCytoskeletonMaleMicroscopy, ElectronMyosinsMyosin SubfragmentsPeptide FragmentsSpermatozoaStaining and LabelingActinsMyosinsMyosin SubfragmentsPeptide Fragments

Identifiers

PMID2435743
PMCPMC2114433
OpenAlexW1981685653

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.