Evidence map›Paper›PMID 10733996›Full record

ArticleBiophysical journal2000

F-actin retains a memory of angular order.

A Orlova, E H Egelman

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Myosin-5 varies its step length to carry cargo straight along the irregular F-actin track.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  2. Myosin-5 varies its steps along the irregular F-actin track.bioRxiv : the preprint server for biology · 2023
    Article
  3. Article
  4. Article
  5. Malaria parasite actin polymerization and filament structure.The Journal of biological chemistry · 2010
    Article
  6. Review
  7. Article
  8. Large-scale models reveal the two-component mechanics of striated muscle.International journal of molecular sciences · 2008
    Article
  9. The structure of bacterial ParM filaments.Nature structural & molecular biology · 2007
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. 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

2 authors at 1 institution in 1 country.

A OrlovaDepartment of Biochemistry and Molecular Genetics, University of Virginia Health Sciences Center, Charlottesville, Virginia 22908-0733, USA.
E H Egelman
University of Virginia Health System · US

Funding

STRUCTURAL STUDIES OF ACTIN AND TUBULINR01AR042023 · NIAMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI EGELMAN, EDWARD H. · 1994 to 2006
$2.1M
NIAMS NIH HHS AR42023
6 · The paper itself

Abstract

Modifications can be made to F-actin that do not interfere with the binding of myosin but inhibit force generation, suggesting that actin's internal dynamics are important for muscle contraction. Observations from electron microscopy and x-ray diffraction have shown that subunits in F-actin have a relatively fixed axial rise but a variable twist. One possible explanation for this is that the actin subunits randomly exist in different discrete states of "twist, " with a significant energy barrier separating these states. This would result in very slow torsional transitions. Paracrystals impose increased order on F-actin filaments by reducing the variability in twist. By looking at filaments that have recently been dissociated from paracrystals, we find that F-actin retains a "memory" of its previous environment that persists for many seconds. This would be consistent with slow torsional transitions between discrete states of twist.

Indexed as

ActinsAnimalsBiophysical PhenomenaBiophysicsIn Vitro TechniquesMicroscopy, ElectronMotionMuscle ContractionMuscle, SkeletalRabbitsThermodynamicsActins

Identifiers

PMID10733996
PMCPMC1300810
OpenAlexW2068971883

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.