ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2004
Using optical tweezers to relate the chemical and mechanical cross-bridge cycles.
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 8 papers.
What it found
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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.
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.
Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Single-Molecule Investigation of Load-Dependent Actomyosin Dissociation Kinetics for Cardiac and Slow Skeletal Myosin.Small (Weinheim an der Bergstrasse, Germany) · 2024Article
- Cardiac ventricular myosin and slow skeletal myosin exhibit dissimilar chemomechanical properties despite bearing the same myosin heavy chain isoform.The Journal of biological chemistry · 2022Article
- Kinetic coupling of phosphate release, force generation and rate-limiting steps in the cross-bridge cycle.Journal of muscle research and cell motility · 2017Review
- A cross-bridge cycle with two tension-generating steps simulates skeletal muscle mechanics.Biophysical journal · 2013Article
- Fifty years on: where have we reached?Journal of muscle research and cell motility · 2006Article
- Switch movements and the myosin crossbridge stroke.Journal of muscle research and cell motility · 2005Review
- Introduction.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2004Article
- Dynamics of actomyosin interactions in relation to the cross-bridge cycle.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2004Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In most current models of muscle contraction there are two translational steps, the working stroke, whereby an attached myosin cross-bridge moves relative to the actin filament, and the repriming step, in which the cross-bridge returns to its original orientation. The development of single molecule methods has allowed a more detailed investigation of the relationship of these mechanical steps to the underlying biochemistry. In the normal adenosine triphosphate cycle, myosin.adenosine diphosphate.phosphate (M.ADP.Pi) binds to actin and moves it by ca. 5 nm on average before the formation of the end product, the rigor actomyosin state. All the other product-like intermediate states tested were found to give no net movement indicating that M.ADP.Pi alone binds in a pre-force state. Myosin states with bound, unhydrolysed nucleoside triphosphates also give no net movement, indicating that these must also bind in a post-force conformation and that the repriming, post- to pre-transition during the forward cycle must take place while the myosin is dissociated from actin. These observations fit in well with the structural model in which the working stroke is aligned to the opening of the switch 2 element of the ATPase site.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.