Results 11 to 20 of about 60,194 (284)
Tropomyosin antibody: the specific localization of tropomyosin in nonmuscle cells. [PDF]
An antibody against purified chicken skeletal muscle tropomyosin is used in indirect immunofluorescence to visualize the localization of tropomyosin in a variety of nonmuscle cells. The antibody produces a fluorescent pattern which is very similar to that obtained with an actin-specific antibody. This pattern is composed of fluorescent fibers which are
Lazarides, Elias
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The Binding Dynamics of Tropomyosin on Actin [PDF]
REVTeX, 10 pages, 9 figures; to appear in Biophysical Journal; minor ...
Vilfan, Andrej
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Equilibrium self‐association of tropomyosin [PDF]
It has recently been reported that tropomyosin exists exclusively as a dimer in physiological salt conditions. It is shown in the present work using analytical ultracentrifugation that, on the contrary, tropomyosin is in equilibrium between monomer, dimer and tetramer with a weak tendency to dimerize and tetramerize. Such a finding has consequences for
Eunhee Lee+2 more
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Tropomyosin-like properties of clathrin light chains allow a rapid, high-yield purification. [PDF]
The light chains (LCa and LCb) of bovine brain clathrin are resistant to heat denaturation by boiling, a property shared by tropomyosin (Bailey, K., 1948, Biochem. J., 43:271-281).
Frances M. Brodsky+2 more
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The actin cytoskeleton provides not only the underpinning for cell architecture but also mechanical force and the ability to drive movement of cells and their organelles. It is tempting to think of it simply as a set of stable structural elements, but nothing could be further from the truth.
Peter W, Gunning, Edna C, Hardeman
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Digestion of tropomyosin with trypsin [PDF]
Tropomyosin is a rod-like a-helical protein composed of two similar subunits in a coiled-coil configuration. It is situated in the grooves of the F-actin strands and with troponin constitutes the regulatory-complex of vertebrate striated muscle. The sequence of the tropomyosin subunit has been determined by Stone, et al. [ 11.
Witold Drabikowski, A. Gorecka
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Actin, α-actinin, and tropomyosin interaction in the structural organization of actin filaments in nonmuscle cells [PDF]
During the spreading of a population of rat embryo cells, approximately 40% of the cells develop a strikingly regular network which precedes the formation of the straight actin filament bundles seen in the fully spread out cells.
Lazarides, Elias
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Anomalous relaxation kinetics of biological lattice-ligand binding models [PDF]
We discuss theoretical models for the cooperative binding dynamics of ligands to substrates, such as dimeric motor proteins to microtubules or more extended macromolecules like tropomyosin to actin filaments.
Anon+6 more
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Tropomyosin isoforms and reagents [PDF]
Tropomyosins are rod-like dimers which form head-to-tail polymers along the length of actin filaments and regulate the access of actin binding proteins to the filaments.1 The diversity of tropomyosin isoforms, over 40 in mammals, and their role in an increasing number of biological processes presents a challenge both to experienced researchers and ...
Shane P. Whittaker+4 more
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Altering the stability of the Cdc8 overlap region modulates the ability of this tropomyosin to bind cooperatively to actin and regulate myosin. [PDF]
Tropomyosin (Tm) is an evolutionarily conserved ?-helical coiled-coil protein, dimers of which form end-to-end polymers capable of associating with and stabilising actin-filaments and regulate myosin function. The fission yeast, Schizosaccharomyces pombe,
East, Daniel A.+5 more
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