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Structural analysis of muscle thin filament
Advances in Biophysics, 1991Thin sheets of Ac-Tm-Tn paracrystals were prepared in the presence of high concentration of Ca2+ ion and three-dimensional image analysis was performed. The optical diffraction pattern of an electron micrograph showed spots up to 1/1.6 nm-1 in the radial direction and up to 1/2.5 nm-1 in the axial direction, the best resolution ever obtained so far ...
A, Tomioka +6 more
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The stoichiometry of the components of arthropod thin filaments
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1976Limulus thin filaments confer calcium sensitivity on calcium-independent myosins and contain in addition to actin and tropomyosin, three troponin components. The molar ratio of actin:tropomyosin:troponin sub-unit T (TN-T): troponin sub-unit C (TN-C) is approximately 7:1:1:1, as in vertebrates, but twice the amount of the troponin sub-unit I (TN-I) may ...
W, Lehman, J M, Regenstein, A L, Ransom
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Nuclear Lamins: Thin Filaments with Major Functions
Trends in Cell Biology, 2018The nuclear lamina is a nuclear peripheral meshwork that is mainly composed of nuclear lamins, although a small fraction of lamins also localizes throughout the nucleoplasm. Lamins are classified as type V intermediate filament (IF) proteins. Mutations in lamin genes cause at least 15 distinct human diseases, collectively termed laminopathies ...
de Leeuw, Rebecca +2 more
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Tropomyosin and Troponin Cooperativity on the Thin Filament
2007The regulation of muscle contraction by the thin filament proteins tropomyosin (Tm) and troponin (Tn) has remained an area of interest since the proteins were first discovered 40 years ago.1,2 Although we have learnt a great deal about the proteins themselves and the mechanism by which they regulate muscle contraction some aspects of the mechanism ...
Sabrina E, Boussouf, Michael A, Geeves
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Mouse Models for Thin Filament Disease
2008Thin filament integrity is important for the ordered structure and function of skeletal muscles. Mutations within genes that encode thin filament and thin filament-associated proteins can cause muscle disruption, fiber atrophy and alter fiber type composition, leading to muscle weakness.
Mai-Anh T, Nguyen, Edna C, Hardeman
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Capillary thinning of polymeric filaments
Journal of Rheology, 1999The capillary thinning of filaments of a Newtonian polybutene fluid and a viscoelastic polyisobutylene solution are analyzed experimentally and by means of numerical simulation. The experimental procedure is as follows. Initially, a liquid sample is placed between two cylindrical plates.
Mette Irene Kolte, Peter Szabo
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Thin filament interferometric microphone
Journal of Applied Physics, 1980A thin filament which follows the motion of a gas is used to measure small pressure fluctuations for photoacoustic spectroscopy. Optical heterodyne detection of laser radiation scattered from the filament provides a sensitive measurement of its displacement.
R. B. Miles, Jack Gelfand, E. Wilczek
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Thin Threads of Solar Filaments
Solar Physics, 2005High-resolution images obtained in Hα with the new Swedish Solar Telescope at La Palma, Spain, have been used for studies of fine-scale threads in solar filaments. The widths of the thin threads are ≤0.3 arcsec. The fact that the width of the thinnest threads is comparable to the diffraction limit of the telescope of about 0.14 arcsec, at the ...
Yong Lin +4 more
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Soliton on thin vortex filament
Chaos, Solitons & Fractals, 1991zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Konno, Kimiaki +2 more
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Thin filament structure and activation
Proceedings, annual meeting, Electron Microscopy Society of America, 1989Skeletal muscle contraction is triggered by the release of calcium ions from the sarcoplasmic reticulum of the myofibrils. Troponin and tropomyosin in the thin (actin-containing) filaments act together as the transducer of this signal. Evidence from reconstruction of electron images of negatively stained samples and from x-ray diffraction studies of ...
M. Whittaker, R. Milligan
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