Results 51 to 60 of about 2,101 (172)

Actin regulation by tropomodulin and tropomyosin in neuronal morphogenesis and function [PDF]

open access: yesMolecular and Cellular Neuroscience, 2017
Actin is a profoundly influential protein; it impacts, among other processes, membrane morphology, cellular motility, and vesicle transport. Actin can polymerize into long filaments that push on membranes and provide support for intracellular transport.
Kevin T, Gray   +2 more
openaire   +2 more sources

Tropomodulin 1 directly controls thin filament length in both wild-type and tropomodulin 4-deficient skeletal muscle [PDF]

open access: yes, 2015
The sarcomeric tropomodulin (Tmod) isoforms Tmod1 and Tmod4 cap thin filament pointed ends and functionally interact with the leiomodin (Lmod) isoforms Lmod2 and Lmod3 to control myofibril organization, thin filament lengths, and actomyosin crossbridge ...
Fowler, Velia M.   +3 more
core   +1 more source

Effect of the Structure of the N Terminus of Tropomyosin on Tropomodulin Function [PDF]

open access: yesJournal of Biological Chemistry, 2004
Tropomodulins (Tmod) bind to the N terminus of tropomyosin and cap the pointed end of actin filaments. Tropomyosin alone also inhibits the rate of actin depolymerization at the pointed end of filaments. Here we have defined 1) the structural requirements of the N terminus of tropomyosin important for regulating the pointed end alone and with ...
Kostyukova, Alla S   +1 more
openaire   +3 more sources

Machine learning‐driven investigation on liquid–liquid phase separation‐related prognostic signature in diffuse large B‐cell lymphoma

open access: yesBritish Journal of Haematology, EarlyView.
Summary Diffuse large B‐cell lymphoma (DLBCL) is the most common aggressive non‐Hodgkin lymphoma and is characterized by substantial heterogeneity. This study aimed to develop a liquid–liquid phase separation (LLPS)‐related prognostic model to improve risk stratification.
Zhen‐Zhong Zhou   +11 more
wiley   +1 more source

Multifunctional roles of tropomodulin-3 in regulating actin dynamics [PDF]

open access: yesBiophysical Reviews, 2018
Tropomodulins (Tmods) are proteins that cap the slow growing (pointed) ends of actin filaments (F-actin). The basis for our current understanding of Tmod function comes from studies in cells with relatively stable and highly organized F-actin networks, leading to the view that Tmod capping functions principally to preserve F-actin stability.
Parreno, Justin, Fowler, Velia M
openaire   +2 more sources

Cytoplasmic Nuclear Transfer of the Actin-capping Protein Tropomodulin [PDF]

open access: yesJournal of Biological Chemistry, 2004
Tropomodulin (Tmod) is a cytoskeletal actin-capping protein that interacts with tropomyosin at the pointed end of actin filaments. E-Tmod is an isoform that expresses predominantly in cardiac cells and slow skeletal muscle fibers. We unexpectedly discovered significant levels of Tmod in nuclei and then defined peptide domains in Tmod responsible for ...
Kimi Y, Kong, Larry, Kedes
openaire   +2 more sources

Tropomodulin binds two tropomyosins: a novel model for actin filament capping

open access: yes, 2006
Tropomodulin, a tropomyosin-binding protein, caps the slow-growing (pointed) end of the actin filament regulating its dynamics. Tropomodulin, therefore, is important for determining cell morphology, cell movement, and muscle contraction.
Kostyukova, Alla S   +2 more
core   +1 more source

Leiomodin-2 is an antagonist of tropomodulin-1 at the pointed end of the thin filaments in cardiac muscle [PDF]

open access: yes, 2010
Regulation of actin filament assembly is essential for efficient contractile activity in striated muscle. Leiomodin is an actin-binding protein and homolog of the pointed-end capping protein, tropomodulin. These proteins are structurally similar, sharing
Kostyukova, Alla S   +11 more
core   +1 more source

Loss of Tropomodulin4 in the zebrafish mutant träge causes cytoplasmic rod formation and muscle weakness reminiscent of nemaline myopathy

open access: yesDisease Models & Mechanisms, 2014
Nemaline myopathy is an inherited muscle disease that is mainly diagnosed by the presence of nemaline rods in muscle biopsies. Of the nine genes associated with the disease, five encode components of striated muscle sarcomeres.
Joachim Berger   +6 more
doaj   +1 more source

TRIM32 controls timely cell cycle exit in muscular differentiation through downregulation of c‐Myc mRNA

open access: yesThe FEBS Journal, EarlyView.
Trim32 regulates the transition from proliferation to differentiation in C2C12 cells after myogenic induction. We found that, at the onset of differentiation, Trim32 destabilizes c‐Myc mRNA, promotes cell cycle exit, and enables normal myotube formation.
Lu Xiong   +6 more
wiley   +1 more source

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