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Influence of external cations on caffeine-induced tension: Calcium extrusion in crayfish muscle

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Summary

The transience of caffeine-induced tensions in crayfish muscle fibers indicates a caffeine-insensitive, Ca-transport system in these fibers. Analysis of the changes in relaxation time of caffeine tensions following ionic substitutions in the crayfish saline leads to the conclusions that this Ca-transport system is located in the sarcolemma and that the extrusion process involves binding of external cations, in particular Na.

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Orentlicher, M., Ornstein, R.S. Influence of external cations on caffeine-induced tension: Calcium extrusion in crayfish muscle. J. Membrain Biol. 5, 319–333 (1971). https://doi.org/10.1007/BF01957349

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  • DOI: https://doi.org/10.1007/BF01957349

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