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Barnacle muscle: Ca2+, activation and mechanics
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Article
Mechanical characteristics of skinned and intact muscle fibres from the giant barnacle,Balanus nubilus
Intact muscle fibres fromBalanus nubilus develop tensions of up to 600 kN sd m−2 during electrical stimulation. The rise of tension occurs with a half-time (177 ms at 12° C) about fivefold longer than that of tet...
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Article
ATPase activity in rapidly activated skinned muscle fibres
The ATPase activity of single mechanically skinned fibres from semitendinosus muscle ofRana esculenta was measured. The method was based on the fluorimetrically detected consumption of NADH inside the fibre. NADH...
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Article
Cross bridge slippage in skinned frog muscle fibres
Mechanically skinned single fibres of the semitendinosus muscles of Rana esculenta were investigated at ca. 4‡ C. The fibres were activated by a Ca2+ jump technique, which allowed the development of a steady isom...
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Article
Rate of isometric tension development in relation to calcium binding of skinned muscle fibres
Isolated muscle fibres from the sartorius or semitendinosus muscles of frogs were mechanically skinned and kept in a relaxed state in a medium containing Mg-ATP and EGTA. When subjected to a rapid increase in ...
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Article
Activation of the contractile system of insect fibrillar muscle at very low concentrations of Mg2+ and Ca2+
The mechanical properties of single fibres and fibre bundles of glycerinated dorsal longitudinal muscle from lethocerus maximus were investigated in ATP-salt solutions containing only trace concentrations of f...