Results 41 to 50 of about 75,941 (270)
PLoS Genetics, 2023 During C. elegans oocyte meiosis I cytokinesis and polar body extrusion, cortical actomyosin is locally remodeled to assemble a contractile ring that forms within and remains part of a much larger and actively contractile cortical actomyosin network ...
Alyssa R Quiogue +4 more
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Myosins generate contractile force and maintain organization in the cytokinetic contractile ring [PDF]
, 2021 Abstract During cytokinesis cells assemble an actomyosin contractile ring whose tension constricts and divides cells, but the ring tension was rarely measured. Actomyosin force generation is well understood for the regular sarcomeric architecture of striated muscle, but recent super-resolution studies of fission yeast contractile rings ...
Zachary McDargh +6 more
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TPXL-1 activates Aurora A to clear contractile ring components from the polar cortex during cytokinesis. [PDF]
J Cell Biol, 2018 During cytokinesis, a signal from the central spindle that forms between the separating anaphase chromosomes promotes the accumulation of contractile ring components at the cell equator, while a signal from the centrosomal microtubule asters inhibits ...
Mangal S +7 more
europepmc +3 more sources
, 2021 International audienceCells dividing in the plane of epithelial tissues proceed by polarized constriction of the actomyosin contractile ring, leading to asymmetric ingression of the plasma mem brane.
Tassan, Jean-Pierre +2 more
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Contractile ring formation [PDF]
The Journal of Cell Biology, 2006 ![Graphic][1] A broad band of nodes is the precursor to a cytokinetic ring. During cytokinesis the actin–myosin contractile ring forms between two daughter cells, pinching them apart. On page [391][2], Wu et al.
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Kinetics of Myosin Node Aggregation into a Contractile Ring [PDF]
Physical Review Letters, 2010 We study a stochastic aggregation model for the assembly of the contractile ring from a broad band of nodes during cytokinesis in fission yeast. We found that bands of nodes condense into rings when the range of node interactions is larger than the width of the band. Wide bands are unstable to clump formation due to Poisson density fluctuations.
Nikola, Ojkic, Dimitrios, Vavylonis
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Haematologica, 2017 The formin protein mDia2 plays a critical role in a number of cellular processes through its ability to promote nucleation and elongation of actin filaments. In erythroblasts, this includes control of cytokinesis and enucleation by regulating contractile
Xuehui Li +6 more
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Aurora B but not rho/MLCK signaling is required for localization of diphosphorylated myosin II regulatory light chain to the midzone in cytokinesis. [PDF]
PLoS ONE, 2013 Non-muscle myosin II is stimulated by monophosphorylation of its regulatory light chain (MRLC) at Ser19 (1P-MRLC). MRLC diphosphorylation at Thr18/Ser19 (2P-MRLC) further enhances the ATPase activity of myosin II.
Tomo Kondo +5 more
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A node organization in the actomyosin contractile ring generates tension and aids stability. [PDF]
Mol Biol Cell, 2017 During cytokinesis, a contractile actomyosin ring constricts and divides the cell in two. How the ring marshals actomyosin forces to generate tension is not settled.
Thiyagarajan S, Wang S, O'Shaughnessy B.
europepmc +2 more sources
Formins Determine the Functional Properties of Actin Filaments in Yeast [PDF]
, 2014 The actin cytoskeleton executes a broad range of essential functions within a living cell. The dynamic nature of the actin polymer is modulated to facilitate specific cellular processes at discrete locations by actin-binding proteins (ABPs), including ...
Mulvihill, Daniel P. +2 more
core +1 more source