Evidence map›Paper›PMID 7822423›Full record

ArticleThe Journal of cell biology1995

Inhibition of CapZ during myofibrillogenesis alters assembly of actin filaments.

D A Schafer, C Hug, J A Cooper

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
5.9field-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

63 citing papers in PubMed, 139 citations in OpenAlex.

  1. Article
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  6. Article
  7. Review
  8. The Mechanisms of Thin Filament Assembly and Length Regulation in Muscles.International journal of molecular sciences · 2022
    Review
  9. GJA1-20k and Mitochondrial Dynamics.Frontiers in physiology · 2022
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review

3 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

3 authors at 1 institution in 1 country.

D A SchaferDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri 63110.
C Hug
J A Cooper
Washington University in St. Louis · US

Funding

NIGMS NIH HHS GM 38542
6 · The paper itself

Abstract

The actin filaments of myofibrils are highly organized; they are of a uniform length and polarity and are situated in the sarcomere in an aligned array. We hypothesized that the barbed-end actin-binding protein, CapZ, directs the process of actin filament assembly during myofibrillogenesis. We tested this hypothesis by inhibiting the actin-binding activity of CapZ in developing myotubes in culture using two different methods. First, injection of a monoclonal antibody that prevents the interaction of CapZ and actin disrupts the non-striated bundles of actin filaments formed during the early stages of myofibril formation in skeletal myotubes in culture. The antibody, when injected at concentrations lower than that required for disrupting the actin filaments, binds at nascent Z-disks. Since the interaction of CapZ and the monoclonal antibody are mutually exclusive, this result indicates that CapZ binds nascent Z-disks independent of an interaction with actin filaments. In a second approach, expression in myotubes of a mutant form of CapZ that does not bind actin results in a delay in the appearance of actin in a striated pattern in myofibrils. The organization of alpha-actinin at Z-disks also is delayed, but the organization of titin and myosin in sarcomeres is not significantly altered. We conclude that the interaction of CapZ and actin is important for the organization of actin filaments of the sarcomere.

Indexed as

Microfilament ProteinsActininActinsAnimalsAntibodies, MonoclonalCapZ Actin Capping ProteinCells, CulturedChick EmbryoCytoskeletonMicroinjectionsModels, BiologicalMuscle ProteinsMusclesMyofibrilsProtein BindingRecombinant Fusion ProteinsActininActinsAntibodies, MonoclonalCapZ Actin Capping ProteinMicrofilament ProteinsMuscle ProteinsRecombinant Fusion Proteins

Identifiers

PMID7822423
PMCPMC2120327
OpenAlexW2171862761

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.