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Phosphate Release and Force Generation in Skeletal Muscle Fibers
Abstract
Rapid laser pulse-induced photolysis of an adenosine triphosphate precursor in muscle fibers abruptly initiated cycling of the cross-bridges. The accompanying changes in tension and stiffness were related to elementary mechanochemical events of the energy-transducing mechanism. When inorganic phosphate was present at millimolar concentrations during liberation of adenosine triphosphate in the absence of calcium, relaxation was accelerated. Steady active tension in the presence of calcium was decreased but the approach to final tension was more rapid. These results suggest that, during energy transduction, formation of the dominant force-generating cross-bridge state is coupled to release of inorganic phosphate in a reaction that is readily reversible.
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Citations
Cited by
Contractile properties of skeletal muscles from young, adult and aged mice.
Brooks, S. V., & Faulkner, J. A. (1988) · The Journal of Physiology · doi:10.1113/jphysiol.1988.sp017279 · Cited by 777
Engineering Novel Metalloproteins: Design of Metal-Binding Sites into Native Protein Scaffolds
Lu, Y., Berry, S. M., & Pfister, T. D. (2001) · Chemical Reviews · doi:10.1021/cr0000574 · Cited by 375
Godt, R. E., & Nosek, T. M. (1989) · The Journal of Physiology · doi:10.1113/jphysiol.1989.sp017609 · Cited by 323
It is diprotonated inorganic phosphate that depresses force in skinned skeletal muscle fibers
Nosek, T. M., Fender, K. Y., & Godt, R. E. (1987) · Science · doi:10.1126/science.3563496 · Cited by 203
Mitochondrial Colocalization with Ca2+ Release Sites is Crucial to Cardiac Metabolism
Hatano, A., Okada, J.-I., Washio, T., Hisada, T., & Sugiura, S. (2013) · Biophysical Journal · doi:10.1016/j.bpj.2012.12.004 · Cited by 19
Metadata
- Authors
- Hibberd, M. G., Dantzig, J. A., Trentham, D. R., & Goldman, Y. E.
- Venue
- Science
- Published
- 1985-06-14
- Volume
- 228
- Issue
- 4705
- Pages
- 1317-1319
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2085261165
- Cited by
- 330
- References
- 0
- FWCI
- 12.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hibberd, M. G., Dantzig, J. A., Trentham, D. R., & Goldman, Y. E. (1985). Phosphate Release and Force Generation in Skeletal Muscle Fibers. Science. https://doi.org/10.1126/science.3159090
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
