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, 2012 The review summarizes the current state of knowledge of the calcium regulation of striated muscle contraction via the thin filament proteins, tropomyosin and troponin. The description focuses on in vitro studies of the thin filament and covers structural,
Geeves, Michael A., M.A. Geeves
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The thin filaments of smooth muscles
Journal of Muscle Research and Cell Motility, 1985Contraction in vertebrate smooth and striated muscles results from the interaction of the actin filaments with crossbridges arising from the myosin filaments. The functions of the actin based thin filaments are (1) interaction with myosin to produce force; (2) regulation of force generation in response to Ca2+ concentration; and (3) transmission of the
S B, Marston, C W, Smith
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Three-dimensional reconstruction of F-actin, thin filaments and decorated thin filaments
Journal of Molecular Biology, 1970Abstract The characteristic “arrowheads” appearance seen in electron micrographs of negatively-stained F-actin filaments when “decorated” with myosin or heavy meromyosin, has shown the structural polarity of actin, but it was not possible previously to deduce from such images the detailed way in which the individual myosin units were attached to the ...
P B, Moore, H E, Huxley, D J, DeRosier
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Journal of Muscle Research and Cell Motility, 1989
Antibodies reacting with chicken gizzard caldesmon were used to determine the distribution of caldesmon on smooth muscle thin filaments. Antibodies developed against both the intact caldesmon molecule and a 40 kilodalton proteolytic fragment cause thin filaments to aggregate laterally.
W, Lehman, R, Craig, J, Lui, C, Moody
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Antibodies reacting with chicken gizzard caldesmon were used to determine the distribution of caldesmon on smooth muscle thin filaments. Antibodies developed against both the intact caldesmon molecule and a 40 kilodalton proteolytic fragment cause thin filaments to aggregate laterally.
W, Lehman, R, Craig, J, Lui, C, Moody
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Thin Filament Proteins and Thin Filament-Linked Regulation of Vertebrate Muscle Contractio
Critical Reviews in Biochemistry, 1984Recent developments in the field of myofibrillar proteins will be reviewed. Consideration will be given to the proteins that participate in the contractile process itself as well as to those involved in Ca-dependent regulation of striated (skeletal and cardiac) and smooth muscle.
Paul C. Leavis +2 more
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Analytical Biochemistry, 2010
We have developed a technique by which muscle thin filaments are reconstituted from the recombinant troponin components and the native thin filaments. By this technique, the reconstituted troponin complex is exchanged into the native thin filaments in the presence of 20% glycerol and 0.3M KCl at pH 6.2.
Fumiko, Matsumoto +3 more
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We have developed a technique by which muscle thin filaments are reconstituted from the recombinant troponin components and the native thin filaments. By this technique, the reconstituted troponin complex is exchanged into the native thin filaments in the presence of 20% glycerol and 0.3M KCl at pH 6.2.
Fumiko, Matsumoto +3 more
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Journal of Muscle Research and Cell Motility, 1990
Native and synthetic vertebrate smooth muscle thin filaments have been examined by electron microscopy in order to determine the arrangement of the regulatory protein caldesmon. In synthetic filaments of actin-caldesmon, long slender molecules were sometimes seen running along the thin filament, suggesting that caldesmon can associate with actin along ...
C, Moody, W, Lehman, R, Craig
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Native and synthetic vertebrate smooth muscle thin filaments have been examined by electron microscopy in order to determine the arrangement of the regulatory protein caldesmon. In synthetic filaments of actin-caldesmon, long slender molecules were sometimes seen running along the thin filament, suggesting that caldesmon can associate with actin along ...
C, Moody, W, Lehman, R, Craig
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The position of tropomyosin in muscle thin filaments
Nature, 1980The contraction of vertebrate skeletal muscle is controlled by the action of Ca2+ on muscle thin filaments. At low Ca2+ concentrations (less than 10(-6)M) the regulatory proteins of the thin filament, tropomyosin and troponin, relax muscle by preventing the interaction of myosin and actin.
J, Seymour, E J, O'Brien
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Structure of myosin decorated actin filaments and natural thin filaments
Journal of Muscle Research and Cell Motility, 1985Negatively stained paracrystals of reconstituted thin filaments decorated with myosin subfragment 1 (S1), at high calcium concentrations (greater than or equal to 10(-5) M), exhibit pgg plane group symmetry with component filaments having 28 subunits in 13 turns of the actin genetic helix. Isolated S1 decorated F-actin filaments trapped in a stain film
J, Seymour, E J, O'Brien
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On the Grain Boundary Grooving in Thin Filaments
Defect and Diffusion Forum, 2005We considered a polycrystalline cylindrical wire of the initial radius R0 composed of identical cylindrical grains of the length L0, strained uniaxially by an external stress P. At the temperatures at which some surface and grain boundary diffusion are allowed the thinning of the nanowire in the vicinity of grain boundaries occurs due to the phenomenon
Leonid Klinger, Eugen Rabkin
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