Electro-optical property of extremely stretched skinned muscle fibers
نویسندگان
چکیده
منابع مشابه
Connectin filaments in stretched skinned fibers of frog skeletal muscle
Indirect immunofluorescence microscopy of highly stretched skinned frog semi-tendinous muscle fibers revealed that connectin, an elastic protein of muscle, is located in the gap between actin and myosin filaments and also in the region of myosin filaments except in their centers. Electron microscopic observations showed that there were easily recognizable filaments extending from the myosin fil...
متن کاملConnectin Filaments Skeletal Muscle in Stretched Skinned Fibers of Frog
Indirect immunofluorescence microscopy of highly stretched skinned frog semitendinous muscle fibers revealed that connectin, an elastic protein of muscle, is located in the gap between actin and myosin filaments and also in the region of myosin filaments except in their centers. Electron microscopic observations showed that there were easily recognizable filaments extending from the myosin fila...
متن کاملLongitudinal Impedance of Skinned Frog Muscle Fibers
Longitudinal impedance of skinned muscle fibers was measured with extracellular electrodes and an oil gap method in which a central longitudinal section of fiber is insulated by oil while the ends of the fiber are bathed in conducting pools of relaxing solution. Intact single fibers were isolated from frog semitendinosus muscle and the sarcolemma removed either by mechanical or chemical methods...
متن کاملCalcium-Activated Tension of Skinned Muscle Fibers of the Frog
The influence of MgATP on the Ga(++)-activated isometric tension of skinned frog muscle fibers was examined in solutions containing: Mg(++) = 5 mM, creatine phosphate (CP) = 14.5 mM, creatinephosphokinase (CPK) = 1 mg/ml, total EGTA = 7 mM, CaCl(2), KCl, imidazole >/= 20 mM so that ionic strength = 0.15, pH = 7.00, and MgATP = 2 mM, 0.1 mM, or 20 microM. CP and CPK were necessary for these expe...
متن کاملDeterminants of relaxation rate in skinned frog skeletal muscle fibers.
The influences of sarcomere uniformity and Ca2+ concentration on the kinetics of relaxation were examined in skinned frog skeletal muscle fibers induced to relax by rapid sequestration of Ca2+ by the photolysis of the Ca2+ chelator, diazo-2, at 10°C. Compared with an intact fiber, diazo-2-induced relaxation exhibited a faster and shorter initial slow phase and a fast phase with a longer tail. S...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1975
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(75)85799-7