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Literature DB >> 20867886

Kinetics of myosin node aggregation into a contractile ring.

Abstract

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. We derive expressions for node kinetics and times for ring vs clump formation and test them using numerical simulations. These results suggest clump formation mechanisms in mutant cells.

Entities: Chemical Disease Species

Mesh：

Substances：
Myosins

Year: 2010 PMID： 20867886 PMCID： PMC2952883 DOI： 10.1103/PhysRevLett.105.048102

Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161

18 in total

7. The F-actin bundler α-actinin Ain1 is tailored for ring assembly and constriction during cytokinesis in fission yeast.

Authors: Yujie Li; Jenna R Christensen; Kaitlin E Homa; Glen M Hocky; Alice Fok; Jennifer A Sees; Gregory A Voth; David R Kovar
Journal: Mol Biol Cell Date: 2016-04-13 Impact factor: 4.138

7 in total

Kinetics of myosin node aggregation into a contractile ring.

1. The ultrasensitivity of living polymers.

2. Asters, vortices, and rotating spirals in active gels of polar filaments.

3. Cytoskeletal dynamics in fission yeast: a review of models for polarization and division.

4. Continuum description of the cytoskeleton: ring formation in the cell cortex.

5. Assembly mechanism of the contractile ring for cytokinesis by fission yeast.

6. Hydrodynamics of cellular cortical flows and the formation of contractile rings.

7. An active biopolymer network controlled by molecular motors.

8. Assembly of the cytokinetic contractile ring from a broad band of nodes in fission yeast.

9. Assembly of normal actomyosin rings in the absence of Mid1p and cortical nodes in fission yeast.

10. Fundamental limits to position determination by concentration gradients.

1. Dynamic network morphology and tension buildup in a 3D model of cytokinetic ring assembly.

2. Model of myosin node aggregation into a contractile ring: the effect of local alignment.

Review 3. Contractile-ring assembly in fission yeast cytokinesis: Recent advances and new perspectives.

4. α-Actinin and fimbrin cooperate with myosin II to organize actomyosin bundles during contractile-ring assembly.

5. The formins Cdc12 and For3 cooperate during contractile ring assembly in cytokinesis.

6. Analysis of the local organization and dynamics of cellular actin networks.

7. The F-actin bundler α-actinin Ain1 is tailored for ring assembly and constriction during cytokinesis in fission yeast.