ArticleProceedings of the National Academy of Sciences of the United States of America2015
Direct real-time detection of the structural and biochemical events in the myosin power stroke.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.
What it found
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Who cites it
70 citing papers in PubMed.
- Theoretical treatment of tension transients in muscle following sudden changes in orthophosphate concentration: implications for energy transduction.Journal of muscle research and cell motility · 2025Article
- A FRET assay to monitor different structural states of human β-cardiac myosin including the interacting-heads motif.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Delayed phosphate release can highly improve energy efficiency of muscle contraction.Biophysical journal · 2025Article
- Article
- The elementary step that generates force and sinusoidal analysis in striated muscle fibers.Journal of muscle research and cell motility · 2025Review
- 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 · 2025Article
- Thick-Filament-Based Regulation and the Determinants of Force Generation.Biomedicines · 2025Article
- The order of things: phosphate release or the power stroke, which does actomyosin do first?Frontiers in physiology · 2025Review
- Multiple pathways of the actin-myosin cycle in energy transduction and the release of orthophosphate in muscle.Frontiers in physiology · 2025Review
- A mechanokinetic actomyosin model predicts different orthophosphate sensitivities of force and ATP turnover rate during isometric muscle contraction.Frontiers in physiology · 2025Article
- Considering the effect of Pi rebinding on myosin dynamics based on the distinct functions of cardiac and skeletal myosin.Frontiers in physiology · 2025Article
- A FRET assay to quantitate levels of the human β-cardiac myosin interacting heads motif based on its near-atomic resolution structure.bioRxiv : the preprint server for biology · 2024Article
- Probing actin-activated ATP turnover kinetics of human cardiac myosin II by single molecule fluorescence.Cytoskeleton (Hoboken, N.J.) · 2024Article
- Single-Molecule Investigation of Load-Dependent Actomyosin Dissociation Kinetics for Cardiac and Slow Skeletal Myosin.Small (Weinheim an der Bergstrasse, Germany) · 2024Article
- Myosin II tension sensors visualize force generation within the actin cytoskeleton in living cells.Journal of cell science · 2024Article
- A novel kinetic model to demonstrate the independent effects of ATP and ADP/Pi concentrations on sarcomere function.PLoS computational biology · 2024Article
- Kinetics and mapping of Ca-driven calmodulin conformations on skeletal and cardiac muscle ryanodine receptors.Nature communications · 2024Article
- Study of the Myosin Relay Helix Peptide by Molecular Dynamics Simulations, Pump-Probe and 2D Infrared Spectroscopy.International journal of molecular sciences · 2024Article
- A weak coupling mechanism for the early steps of the recovery stroke of myosin VI: A free energy simulation and string method analysis.PLoS computational biology · 2024Article
- Phosphate rebinding induces force reversal via slow backward cycling of cross-bridges.Frontiers in physiology · 2024Article
10 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
A principal goal of molecular biophysics is to show how protein structural transitions explain physiology. We have developed a strategic tool, transient time-resolved FRET [(TR)(2)FRET], for this purpose and use it here to measure directly, with millisecond resolution, the structural and biochemical kinetics of muscle myosin and to determine directly how myosin's power stroke is coupled to the thermodynamic drive for force generation, actin-activated phosphate release, and the weak-to-strong actin-binding transition. We find that actin initiates the power stroke before phosphate dissociation and not after, as many models propose. This result supports a model for muscle contraction in which power output and efficiency are tuned by the distribution of myosin structural states. This technology should have wide application to other systems in which questions about the temporal coupling of allosteric structural and biochemical transitions remain unanswered.
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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.