Evidence map›Paper›PMID 9763625›Full record

ArticleThe Journal of physiology1998

Thiophosphorylation of myosin light chain increases rigor stiffness of rabbit smooth muscle.

A S Khromov, A V Somlyo, A P Somlyo

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Spatial control of myosin regulatory light chain phosphorylation modulates cardiac thick filament mechanosensing.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Myosin light chain phosphorylation enhances contraction of heart muscle via structural changes in both thick and thin filaments.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
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  6. Review
  7. Article
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  10. The molecular effects of skeletal muscle myosin regulatory light chain phosphorylation.American journal of physiology. Regulatory, integrative and comparative physiology · 2009
    Article
  11. Smooth muscle myosin: regulation and properties.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2004
    Review
  12. 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 at 1 institution in 1 country.

A S KhromovDepartment of Molecular Physiology and Biological Physics, University of Virginia Health Sciences Center, PO Box 10011, Charlottesville, VA 22906-0011, USA.
A V Somlyo
A P Somlyo
University of Virginia · US

Funding

THE CONTRACTILE SYSTEM OF VASCULAR SMOOTH MUSCLEP01HL019242 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI OWENS, GARY K · 1985 to 2009
$16.9M
NHLBI NIH HHS HL19242NHLBI NIH HHS P01 HL019242
6 · The paper itself

Abstract

1. The effect of thiophosphorylation of the regulatory myosin light chain (MLC20) on rigor stiffness was determined in permeabilized rabbit bladder smooth muscle. 2. Rigor stiffness of alpha-toxin-permeabilized smooth muscle was significantly increased by thiophosphorylation of MLC20. This increase may have been due to partial shortening (melting) in the proximal rod region and/or stiffening of the regulatory domain of the myosin head. 3. We suggest that phosphorylation of MLC20, by increasing the stiffness of the S1 lever arm and/or S2 hinge regions of the myosin molecule, favours separation of the two phosphorylated heads and consequent deinhibition of motor domain activity.

Indexed as

AlgorithmsAnimalsElectric StimulationIn Vitro TechniquesLinear ModelsMuscle, SmoothMyosin Light ChainsPhosphatesRabbitsRigor MortisUrinary BladderMyosin Light ChainsPhosphatesthiophosphoric acid

Identifiers

PMID9763625
PMCPMC2231214
OpenAlexW2041754746

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.