Evidence map›Paper›PMID 18793739›Full record

ReviewSeminars in cell & developmental biology2008

Thin filament length regulation in striated muscle sarcomeres: pointed-end dynamics go beyond a nebulin ruler.

Ryan S Littlefield, Velia M Fowler

Open access · greenAbstract readReview
In one paragraph

Review in Seminars in cell & developmental biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

79 citing papers in PubMed, 108 citations in OpenAlex.

  1. Alterations of actin in aging.Journal of cell science · 2026
    Review
  2. Disease-associated mutations inbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Nebulin: big protein with big responsibilities.Journal of muscle research and cell motility · 2020
    Review
  17. Review
  18. Article
  19. Article
  20. Article

19 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

2 authors at 1 institution in 1 country.

Ryan S LittlefieldCenter for Cell Dynamics, University of Washington, Friday Harbor Laboratories, Friday Harbor, WA 98250, USA.
Velia M Fowler
Scripps Research Institute · US

Funding

Capping Actin Growth in Erythroid and Nonerythroid CellsR01HL083464 · NHLBI · UNIVERSITY OF DELAWARE · PI FOWLER, VELIA M · 2006 to 2019
$7.1M
NHLBI NIH HHS R01 HL083464
6 · The paper itself

Abstract

The actin (thin) filaments in striated muscle are highly regulated and precisely specified in length to optimally overlap with the myosin (thick) filaments for efficient myofibril contraction. Here, we review and critically discuss recent evidence for how thin filament lengths are controlled in vertebrate skeletal, vertebrate cardiac, and invertebrate (arthropod) sarcomeres. Regulation of actin polymerization dynamics at the slow-growing (pointed) ends by the capping protein tropomodulin provides a unified explanation for how thin filament lengths are physiologically optimized in all three muscle types. Nebulin, a large protein thought to specify thin filament lengths in vertebrate skeletal muscle through a ruler mechanism, may not control pointed-end actin dynamics directly, but instead may stabilize a large core region of the thin filament. We suggest that this stabilizing function for nebulin modifies the lengths primarily specified by pointed-end actin dynamics to generate uniform filament lengths in vertebrate skeletal muscle. We suggest that nebulette, a small homolog of nebulin, may stabilize a correspondingly shorter core region and allow individual thin filament lengths to vary according to working sarcomere lengths in vertebrate cardiac muscle. We present a unified model for thin filament length regulation where these two mechanisms cooperate to tailor thin filament lengths for specific contractile environments in diverse muscles.

Indexed as

Actin CytoskeletonAnimalsMuscle ProteinsMuscle, StriatedMyofibrilsSarcomeresMuscle Proteinsnebulin

Identifiers

PMID18793739
PMCPMC2650474
OpenAlexW2052689570

What OpenQuestion holds

Textmetadata
LicenceTDM
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.