Results 241 to 250 of about 125,465 (286)
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Electron microscopy of nematode thick filaments
Journal of Ultrastructure Research, 1981Thick filaments have been isolated from the body-wall muscle cells of the nematode, Caenorhabditis elegans. Their protein constituents were shown by SDS—polyacrylamide gel electrophoresis to be myosin, paramyosin, several previously unidentified protein bands and small amounts of actin and tropomyosin from contaminating thin filaments.
J M, MacKenzie, H F, Epstein
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Bipolarity in thick filaments of Nematomorpha
Journal of Molecular Biology, 1977Thick filaments of horse-hair worms muscles are characterized by asymmetrical periods 670 to 700 A long. A reversal zone, with centro-symmetrical periods has been observed; therefore these filaments are bipolar, as required for the sliding filament contraction mechanism.
G, Lanzavecchia +2 more
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2008
Hereditary myosin myopathies are a newly emerged group of diseases caused by mutations in skeletal muscle myosin heavy chain (MyHC) genes. The phenotypes of these diseases are varied, ranging from prenatal nonprogressive arthrogrypotic syndromes to adult-onset progressive muscle weakness.
Anders, Oldfors, Phillipa J, Lamont
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Hereditary myosin myopathies are a newly emerged group of diseases caused by mutations in skeletal muscle myosin heavy chain (MyHC) genes. The phenotypes of these diseases are varied, ranging from prenatal nonprogressive arthrogrypotic syndromes to adult-onset progressive muscle weakness.
Anders, Oldfors, Phillipa J, Lamont
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Sequential disassembly of vertebrate muscle thick filaments
Journal of Molecular Biology, 1980Abstract Native thick filaments from rabbit psoas muscle have been sequentially dissolved by incremental rises in salt concentration. Three quite separate stages of depolymerization can be detected; these presumably reflect constraints imposed on the disassembly process by variations in the packing of myosin and by the presence of other thick ...
J, Trinick, J, Cooper
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Structure of Limulus telson muscle thick filaments
Journal of Molecular Biology, 1981Abstract Computer analysis of electron micrographs of negatively stained thick filaments isolated from the telson levator muscle of the horseshoe crab ( Limulus polyphemus ) has shown that they have a four-stranded helical structure. The repeating units along each helix have a bent extended shape (measuring approximately 20 nm × 8 nm × 8 nm) and are ...
M, Stewart, R W, Kensler, R J, Levine
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Thick Filaments in Unstretched Mammalian Smooth Muscle
Nature New Biology, 1971THE controversy concerning the organization of myosin in mammalian smooth muscle was reviewed (Nature New Biology, 231, 225; 1971) at a time when the studies of Rice's laboratory and our own demonstrated a regular, quasi-rectangular array of thick filaments in guinea-pig taenia coli (TC) and rabbit portal-anterior mesenteric vein (MV), and, further ...
A P, Somlyo, C E, Devine, A V, Somlyo
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Thick-Filament Degeneration Associated With Periarteritis Nodosa
Archives of Neurology, 1982• Absence of thick filaments from A bands in 30% of myofibers, which gave apparently normal histochemical reactions for myosin adenosine triphosphatase, was seen in a case of periarteritis nodosa. The pathogenesis of the condition remains uncertain, but immunologic, toxic, or viral causation may be involved.
I, Halperin +4 more
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Thick filaments and paramyosin of annelid muscles
Journal of Ultrastructure Research, 1976Thick filaments from annelid muscle were observed by positive and negative staining of the glycerinated sample, which was homogenized in a relaxing medium containing ATP. The preservation of myosin on the filament surface was strictly related to very high concentration of ATP (12 m M .). The 144 A periodicity was scarcely visible.
M, Camatini +4 more
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Thick (Myosin) Filaments in a Glomus Tumor
American Journal of Clinical Pathology, 1983An otherwise classic digital glomus tumor is presented with the unusual ultrastructural finding of cytoplasmic thick (myosin) filaments together with thin (actin) filaments in many of the cells. In places, sarcomere-like orientation was seen. It is little appreciated among diagnostic pathologists, but is well-established, that thick (myosin) filaments ...
P A, di Sant'Agnese, K L, De Mesy Jensen
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