Results 31 to 40 of about 1,291,235 (309)
Actin assembly ruptures the nuclear envelope by prying the lamina away from nuclear pores and nuclear membranes in starfish oocytes. [PDF]
, 2020 The nucleus of oocytes (germinal vesicle) is unusually large and its nuclear envelope (NE) is densely packed with nuclear pore complexes (NPCs) stockpiled for embryonic development. We showed that breakdown of this specialized NE is mediated by an Arp2/3-
Avilov, I. +6 more
core +1 more source
The F-actin filament capping protein CapG is a bona fide nucleolar protein [PDF]
, 2008 Actin works in concert with myosin I to regulate the transcription of ribosomal genes in the nucleolus. Recently, nucleolar actin has been shown to be active in its polymeric form raising the question how actin dynamics is regulated in the nucleolus ...
Gettemans, Jan +3 more
core +2 more sources
Trends in Cell Biology, 1996 The most biologically significant property of actin is its ability to self-associate and form two-stranded polymeric microfilaments. In living cells, these micro filaments form the actin cytoskeleton, essential for maintenance of the shape, passive mechanical properties and active motility of eukaryotic cells. Recently discovered actin-related proteins
R D, Mullins +2 more
openaire +2 more sources
Journal of Lipid Research, 2002 Class A macrophage scavenger receptors (SR-A) are multifunctional receptors with roles in modified lipoprotein uptake, innate immunity, and macrophage adhesion.
Steven R. Post +5 more
doaj +1 more source
Frontiers in Molecular Biosciences, 2020 Depending on the physical and biochemical properties of actin-binding proteins, actin networks form different types of membrane protrusions at the cell periphery.
Yashar Bashirzadeh +5 more
doaj +1 more source
Frontiers in Cell and Developmental Biology, 2022 The mammalian cytoskeleton forms a mechanical continuum that spans across the cell, connecting the cell surface to the nucleus via transmembrane protein complexes in the plasma and nuclear membranes. It transmits extracellular forces to the cell interior,
Anne-Betty Ndiaye +2 more
doaj +1 more source
Actin at cell-cell junctions is composed of two dynamic and functional populations [PDF]
, 2005 The ability of epithelial cells to polarize requires cell-cell adhesion mediated by cadherin receptors. During cell-cell contact, the mechanism via which a flat, spread cell shape is changed into a tall, cuboidal epithelial morphology is not known.
Bailly, M. +6 more
core +1 more source
Actin and Actin-Binding Proteins [PDF]
Cold Spring Harbor Perspectives in Biology, 2016 Organisms from all domains of life depend on filaments of the protein actin to provide structure and to support internal movements. Many eukaryotic cells use forces produced by actin polymerization for their motility, and myosin motor proteins use ATP hydrolysis to produce force on actin filaments.
openaire +2 more sources
Coordinated oscillations in cortical actin and Ca2+ correlate with cycles of vesicle secretion. [PDF]
, 2012 The actin cortex both facilitates and hinders the exocytosis of secretory granules. How cells consolidate these two opposing roles was not well understood. Here we show that antigen activation of mast cells induces oscillations in Ca(2+) and PtdIns(4,5)P(
Meyer, T, Wollman, R
core +1 more source
Novel Actin Cytoskeleton. Actin Tubules.
Cell Structure and Function, 2000 In spores of Dictyostelium discoideum three actin filaments are bundled to form a novel tubular structure and the tubules are then organized into rods. These tubular structures we will term actin tubules. Actin tubules are reconstructed from the supernatant of spore homogenates, while the usual actin filaments were bundled after incubation of ...
M, Sameshima +4 more
openaire +3 more sources