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Mechanisms  of  actomyosin  ring  contraction,  and  its

Actin turnover ensures uniform tension distribution during cytokinetic actomyosin ring contraction

Actin turnover ensures uniform tension distribution during cytokinetic actomyosin ring contraction

... cytokinetic actomyosin ring contraction ABSTRACT In many eukaryotes, cytokinesis is facilitated by the contraction of an actomyosin ring ...exact mechanisms that lead to ...

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Curvature induced expulsion of actomyosin bundles during cytokinetic ring contraction

Curvature induced expulsion of actomyosin bundles during cytokinetic ring contraction

... a ring-shaped actomyosin network that contracts to drive ...Unlike actomyosin in sarcomeres, which cycles through contraction and relaxation, the cytokinetic ring disassembles during ...

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Motor activity dependent and independent functions for Myosin II in cytokinesis contribute to actomyosin ring assembly and contraction in Schizosaccharomyces pombe

Motor activity dependent and independent functions for Myosin II in cytokinesis contribute to actomyosin ring assembly and contraction in Schizosaccharomyces pombe

... dent contraction-competent actomyosin rings [8, ...isolated actomyosin rings in cell ghosts from myo2-E1-Sup1 were capable of ATP-depen- dent ...contraction. Actomyosin rings were ...

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Investigating the roles of turnover and mobility in the actomyosin ring of Schizosaccharomyces pombe

Investigating the roles of turnover and mobility in the actomyosin ring of Schizosaccharomyces pombe

... the ring structure and dimensionality Since the publication of the original model, super-­‐resolution microscopy of the ...pombe ring has provided strong evidence that the precursor nodes that are present ...

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Investigating septin-dependent, actomyosin-ring-independent cytokinesis in Saccharomyces cerevisiae

Investigating septin-dependent, actomyosin-ring-independent cytokinesis in Saccharomyces cerevisiae

... To determine cell-cluster indices, strains were streaked onto the indicated media, grown overnight, scraped from the plates, washed once with water by centrifugation, resuspended, sonicated briefly, and observed by DIC ...

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A new hypothesis for foregut and heart tube formation based on differential growth and actomyosin contraction

A new hypothesis for foregut and heart tube formation based on differential growth and actomyosin contraction

... physical mechanisms of heart tube and foregut ...active contraction along the anterior intestinal portal generates tension to elongate the foregut and heart ...and actomyosin contraction drive ...

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Equatorial assembly of the cell division actomyosin ring in the absence of cytokinetic spatial cues

Equatorial assembly of the cell division actomyosin ring in the absence of cytokinetic spatial cues

... overlapping mechanisms, including signaling from the central spindle microtubules, astral microtubules, and spin- dle poles and through polar contractions ...lapping mechanisms involving the anillin-related ...

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Mechanisms of change contraction of function of the muscles in vitro at allergic

Mechanisms of change contraction of function of the muscles in vitro at allergic

... on contraction function of guinea pig isolated diaphragm ...concrete, its ability to change its con- tractile functions by increase of force and shortening velocity on carbacholine (CCh) in terms of ...

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Theoretical Studies of The Contraction and Extension Effect in The B-Ring of TIBO Derivatives

Theoretical Studies of The Contraction and Extension Effect in The B-Ring of TIBO Derivatives

... Generally, the NNRTI compounds contain a carbonyl or thiocarbonyl group, an extra lipophilic site and a methyl group 8 . Though, many physicochemical properties of NNRTIs inhibitors can differ, many theoretical studies ...

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Computational Insights into Enzymatic Ring Opening Mechanisms

Computational Insights into Enzymatic Ring Opening Mechanisms

... In chapter 3, the inhibition of CTX-­‐M β-­‐lactamase was explored with the inhibitor tazobactam. Several approaches were taken to explore the nuances of the enzyme’s hydrolytic activity including molecular dynamic ...

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Eccentric contraction: unraveling mechanisms of force enhancement and energy conservation

Eccentric contraction: unraveling mechanisms of force enhancement and energy conservation

... Their conclusion was that, if an elastic element is formed in muscle during activation, it is not slackened by shortening. Studies by Herzog and Leonard (2000) in intact cat soleus muscles initially appeared to ...

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Mechanisms underlying co-contraction during development and in pathology in man

Mechanisms underlying co-contraction during development and in pathology in man

... the mechanisms underlying the mirror movements observed in patients with ...patients ring or little finger flexion was accompanied by contralateral finger abduction or ...

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Cooperation Between the Septins and the Actomyosin Ring and Role of a Cell-Integrity Pathway During Cell Division in Fission Yeast

Cooperation Between the Septins and the Actomyosin Ring and Role of a Cell-Integrity Pathway During Cell Division in Fission Yeast

... 2010) and only a weak synthetic effect between spn1-D2 and myo52D (our unpublished results). Thus, the most attractive hypothesis to explain the available data is that the septins are involved in a pathway whose function ...

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The Cohesin Ring Uses Its Hinge to Organize DNA Using Non-topological as well as Topological Mechanisms

The Cohesin Ring Uses Its Hinge to Organize DNA Using Non-topological as well as Topological Mechanisms

... SUMMARY As predicted by the notion that sister chromatid cohesion is mediated by entrapment of sister DNAs inside cohesin rings, there is perfect correlation be- tween co-entrapment of circular minichromosomes and sister ...

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The Cohesin Ring Uses Its Hinge to Organize DNA Using Non-topological as well as Topological Mechanisms

The Cohesin Ring Uses Its Hinge to Organize DNA Using Non-topological as well as Topological Mechanisms

... SUMMARY As predicted by the notion that sister chromatid cohesion is mediated by entrapment of sister DNAs inside cohesin rings, there is perfect correlation be- tween co-entrapment of circular minichromosomes and sister ...

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The cohesin ring uses its hinge to organize DNA using non-topological as well as topological mechanisms

The cohesin ring uses its hinge to organize DNA using non-topological as well as topological mechanisms

... SUMMARY As predicted by the notion that sister chromatid cohesion is mediated by entrapment of sister DNAs inside cohesin rings, there is perfect correlation be- tween co-entrapment of circular minichromosomes and sister ...

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NO-1886, a lipoprotein lipase activator, attenuates contraction of rat intestinal ring preparations

NO-1886, a lipoprotein lipase activator, attenuates contraction of rat intestinal ring preparations

... muscle contraction by elevat- ing intracellular Ca 2+ , while M2 receptors induce contraction indirectly by inhibiting the production of cyclic AMP ...direct contraction of intestinal and bladder ...

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Actin turnover maintains actin filament homeostasis during cytokinetic ring contraction

Actin turnover maintains actin filament homeostasis during cytokinetic ring contraction

... tension-generating actomyosin-based contractile ring. Many components of actomyosin rings turn over during contraction, although the significance of this turnover has remained ...in its ...

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Testosterone modulates cardiac contraction and calcium homeostasis: cellular and molecular mechanisms

Testosterone modulates cardiac contraction and calcium homeostasis: cellular and molecular mechanisms

... The incidence of cardiovascular disease rises dramatically with age in both men and women. Because a woman ’ s risk of cardiovascular disease rises markedly after the onset of menopause, there has been growing interest ...

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Unexpected ring contraction in a dinuclear mercury(II) complex of a pendant arm macrocyclic complex

Unexpected ring contraction in a dinuclear mercury(II) complex of a pendant arm macrocyclic complex

... The Hg II is coordinated by an imine N atom and an O atom from the macrocycle ligand and four O atoms from the two acetate ligands. The Hg II coordination is irregular; if the longest bond, Hg1ÐO3 [2.594 (16) AÊ] is not ...

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