Evidence map›Paper›PMID 20625409›Full record

ArticleJournal of biomedicine & biotechnology2010

Mechanism of catch force: tethering of thick and thin filaments by twitchin.

Thomas M Butler, Marion J Siegman

Open access · hybridAbstract read
In one paragraph

Article in Journal of biomedicine & biotechnology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  6. Review
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  8. Review
  9. Nonparametric Model of Smooth Muscle Force Production During Electrical Stimulation.Journal of computational biology : a journal of computational molecular cell biology · 2017
    Article
  10. Review
  11. An invertebrate smooth muscle with striated muscle myosin filaments.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. A force-activated kinase in a catch smooth muscle.Journal of muscle research and cell motility · 2011
    Article
  17. 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.

Thomas M ButlerDepartment of Molecular Physiology and Biophysics, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Marion J Siegman
Thomas Jefferson University · US

Funding

CATCH--MECHANOCHEMISTRY AND REGULATION IN SMOOTH MUSCLER01AR042758 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI BUTLER, THOMAS M · 1995 to 2008
$4.6M
NIAMS NIH HHS R01 AR042758
6 · The paper itself

Abstract

Catch is a mechanical state occurring in some invertebrate smooth muscles characterized by high force maintenance and resistance to stretch during extremely slow relaxation. During catch, intracellular calcium is near basal concentration and myosin crossbridge cyctng rate is extremely slow. Catch force is relaxed by a protein kinase A-mediated phosphorylation of sites near the N- and C- temini of the minititin twitchin (approximately 526 kDa). Some catch force maintenance car also occur together with cycling myosin crossbridges at submaximal calcium concentrations, but not when the muscle is maximally activated. Additionally, the link responsible for catch can adjust during shortening of submaximally activated muscles and maintain catch force at the new shorter length. Twitchin binds to both thick and thin filaments, and the thin filament binding shown by both the N- and Cterminal portions of twitchin is decreased by phosphorylation of the sites that regulate catch. The data suggest that the twitchin molecule itself is the catch force beanng tether between thick and thin filaments. We present a model for the regulation of catch in which the twitchin tether can be displaced from thin filaments by both (a) the phosphorylation of twitchin and (b) the attachment of high force myosin crossbridges.

Indexed as

Actin CytoskeletonAnimalsBiomechanical PhenomenaHumansModels, BiologicalMolecular WeightMuscle ContractionMuscle ProteinsMuscle, SmoothMyosinsPhosphorylationMuscle ProteinsMyosins

Identifiers

PMID20625409
PMCPMC2896863
OpenAlexW1973284887

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.