Results 1 to 10 of about 951 (106)

cGMP interacts with tropomyosin and downregulates actin-tropomyosin-myosin complex interaction [PDF]

open access: yesRespiratory Research, 2018
Background The nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate (NO-sGC-cGMP) signaling pathway, plays a critical role in the pathogenesis of pulmonary arterial hypertension (PAH); however, its exact molecular mechanism remains ...
Lihui Zou   +7 more
doaj   +4 more sources

The binding dynamics of tropomyosin on actin [PDF]

open access: yesBiophys. J. 81, 3146-3155 (2001), 2001
We discuss a theoretical model for the cooperative binding dynamics of tropomyosin to actin filaments. Tropomyosin binds to actin by occupying seven consecutive monomers. The model includes a strong attraction between attached tropomyosin molecules. We start with an empty lattice and show that the binding goes through several stages.
arxiv   +7 more sources

Alternative splicing of a single exon causes a major impact on the affinity of Caenorhabditis elegans tropomyosin isoforms for actin filaments

open access: yesFrontiers in Cell and Developmental Biology, 2023
Tropomyosin is generally known as an actin-binding protein that regulates actomyosin interaction and actin filament stability. In metazoans, multiple tropomyosin isoforms are expressed, and some of them are involved in generating subpopulations of actin ...
Shoichiro Ono   +7 more
doaj   +1 more source

Tropomyosins [PDF]

open access: yesCurrent Biology, 2017
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
openaire   +2 more sources

Micro-mechanical response and power-law exponents from the longitudinal fluctuations of F-actin solutions [PDF]

open access: yesSoft Matter, 2023,19, 3652-3660, 2022
We investigate the local fluctuations of filamentous actin (F-actin), with focus on the skeletal thin filament, using single-particle optical trapping interferometry. This experimental technique allows us to detect the Brownian motion of a tracer bead immersed in a complex fluid with nanometric resolution at the microsecond time-scale.
arxiv   +1 more source

Tropomyosin in mugwort cross-reacts to house dust mite, eliciting non-Th2 response in allergic rhinitis patients sensitized to house dust mite

open access: yesClinical and Molecular Allergy, 2021
Background Mugwort and house dust mite (HDM) are two of the most common inhalant allergens in Asia, however, whether mugwort affects polysensitized HDM+ allergic rhinitis (AR) patients has not been elucidated.
Su Duan   +11 more
doaj   +1 more source

Mutations changing tropomodulin affinity for tropomyosin alter neurite formation and extension [PDF]

open access: yesPeerJ, 2013
Assembly of the actin cytoskeleton is an important part of formation of neurites in developing neurons. Tropomodulin, a tropomyosin-dependent capping protein for the pointed end of the actin filament, is one of the key players in this process ...
Natalia Moroz   +3 more
doaj   +2 more sources

Digestion of tropomyosin with trypsin [PDF]

open access: yesFEBS Letters, 1977
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
openaire   +3 more sources

Effect of selected bioactive substances and nanoparticles on the immunoreactivity of edible packages containing chitosan, by the ELISA method

open access: yesFood and Agricultural Immunology, 2023
The aim of this study was evaluated the effect of selected bioactive substances and nanoparticles on the immunoreactivity of edible packages based on chitosan using the ELISA. The analysed protein was the tropomyosin.
L. Havlová   +8 more
doaj   +1 more source

Multisyringe Flow Injection Analysis of Tropomyosin Allergens in Shellfish Samples

open access: yesMolecules, 2021
This paper presents the development and the application of a multisyringe flow injection analysis system for the fluorimetric determination of the major heat-stable known allergen in shrimp, rPen a 1 (tropomyosin).
Bruno Coulomb   +4 more
doaj   +1 more source

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