Evidence map›Paper›PMID 15647167›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2004

Coupling between phosphate release and force generation in muscle actomyosin.

Y Takagi, H Shuman, Y E Goldman

Open access · greenAbstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2004. 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
2.5field-weighted citation impact, top 11% 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, 113 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Characterizing the concentration and load dependence of phosphate binding to rabbit fast skeletal actomyosin.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Review
  8. Review
  9. Article
  10. Switch-2 determines MgFrontiers in physiology · 2024
    Article
  11. Article
  12. Creatine Kinase Equilibration and ΔGInternational journal of molecular sciences · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

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.

Y TakagiPennsylvania Muscle Institute, University of Pennsylvania, D700 Richards Building, 3700 Hamilton Walk, Philadelphia, PA 19104-6083, USA.
H Shuman
Y E Goldman
University of Pennsylvania · US

Funding

VASCULAR SMOOTH MUSCLEP01HL015835 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI GOLDMAN, YALE E · 1985 to 2002
$5.5M
STRUCTURAL DYNAMICS OF ACTOMYOSIN MOTILITYR01AR026846 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI GOLDMAN, YALE E · 1986 to 2007
$2.3M
ENERGY TRANSDUCTION BY SINGLE MYOSIN MOLECULESR01AR045990 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI SHUMAN, HENRY · 1999 to 2003
$1.3M
KINETICS OF THE MUSCLE CONTRACTILE APPARATUSR37AR026846 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI GOLDMAN, YALE E · 1992 to 2001
$536k
NHLBI NIH HHS HL15835NIAMS NIH HHS AR26846NIAMS NIH HHS AR45990
6 · The paper itself

Abstract

Energetic, kinetic and oxygen exchange experiments in the mid-1980s and early 1990s suggested that phosphate (Pi) release from actomyosin-adenosine diphosphate Pi (AM.ADP.Pi) in muscle fibres is linked to force generation and that Pi release is reversible. The transition leading to the force-generating state and subsequent Pi release were hypothesized to be separate, but closely linked steps. Pi shortens single force-generating actomyosin interactions in an isometric optical clamp only if the conditions enable them to last 20-40 ms, enough time for Pi to dissociate. Until 2003, the available crystal forms of myosin suggested a rigid coupling between movement of switch II and tilting of the lever arm to generate force, but they did not explain the reciprocal affinity myosin has for actin and nucleotides. Newer crystal forms and other structural data suggest that closing of the actin-binding cleft opens switch I (presumably decreasing nucleotide affinity). These data are all consistent with the order of events suggested before: myosin.ADP.Pi binds weakly, then strongly to actin, generating force. Then Pi dissociates, possibly further increasing force or sliding.

Indexed as

Models, BiologicalActinsAnimalsMuscle ContractionMuscle, SkeletalMyofibrilsMyosinsPhosphatesActinsMyosinsPhosphates

Identifiers

PMID15647167
PMCPMC1693468
OpenAlexW261445698

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.