Regulation of actin-myosin interaction

Dancker, Peter

doi:10.1007/BF01906349

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Regulation of actin-myosin interaction

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Dancker, Peter
Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Dancker, P. (1977). Regulation of actin-myosin interaction. Basic Research in Cardiology, 72(2-3), 118-123. doi:10.1007/BF01906349.

Cite as: https://hdl.handle.net/21.11116/0000-0002-E81C-A

Abstract

In the presence of the regulatory protein complex tropomyosin-troponin ATPase activity of vertebrate skeletal muscle actomyosin is either higher or lower than in the absence of tropomyosin-troponin. The actual behavior depends on ionic strength, Ca2+ concentration, ATP concentration (determining the amount of rigor complexes present), and the ratio between actin and myosin. This effect of the myosin-actin ratio implies that under certain conditions cooperativity in actin-myosin interaction can be seen.