دورية أكاديمية
أعرض في EDS

Mechanism of cytokinetic contractile ring constriction in fission yeast.

التفاصيل البيبلوغرافية
العنوان: Mechanism of cytokinetic contractile ring constriction in fission yeast.
المؤلفون: Stachowiak MR; Department of Chemical Engineering, Columbia University, New York, NY 10027, USA., Laplante C; Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520, USA., Chin HF; Department of Chemical Engineering, Columbia University, New York, NY 10027, USA., Guirao B; Department of Chemical Engineering, Columbia University, New York, NY 10027, USA., Karatekin E; Department of Cellular and Molecular Physiology, School of Medicine, Yale University, New Haven, CT 06520, USA; Nanobiology Institute, Yale University, New Haven, CT 06520, USA., Pollard TD; Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520, USA; Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA; Department of Cell Biology, Yale University, New Haven, CT 06520, USA., O'Shaughnessy B; Department of Chemical Engineering, Columbia University, New York, NY 10027, USA. Electronic address: bo8@columbia.edu.
المصدر: Developmental cell [Dev Cell] 2014 Jun 09; Vol. 29 (5), pp. 547-561.
نوع المنشور: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Cell Press Country of Publication: United States NLM ID: 101120028 Publication Model: Print Cited Medium: Internet ISSN: 1878-1551 (Electronic) Linking ISSN: 15345807 NLM ISO Abbreviation: Dev Cell Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Cambridge, Mass. : Cell Press, c2001-
مواضيع طبية MeSH: Actin Cytoskeleton/*metabolism , Actomyosin/*metabolism , Cytokinesis/*physiology , Schizosaccharomyces/*metabolism , Schizosaccharomyces pombe Proteins/*metabolism, Computer Simulation ; Myosin Type II/metabolism ; Polymerization ; Schizosaccharomyces/cytology
مستخلص: Cytokinesis involves constriction of a contractile actomyosin ring. The mechanisms generating ring tension and setting the constriction rate remain unknown because the organization of the ring is poorly characterized, its tension was rarely measured, and constriction is coupled to other processes. To isolate ring mechanisms, we studied fission yeast protoplasts, in which constriction occurs without the cell wall. Exploiting the absence of cell wall and actin cortex, we measured ring tension and imaged ring organization, which was dynamic and disordered. Computer simulations based on the amounts and biochemical properties of the key proteins showed that they spontaneously self-organize into a tension-generating bundle. Together with rapid component turnover, the self-organization mechanism continuously reassembles and remodels the constricting ring. Ring constriction depended on cell shape, revealing that the ring operates close to conditions of isometric tension. Thus, the fission yeast ring sets its own tension, but other processes set the constriction rate.
(Copyright © 2014 Elsevier Inc. All rights reserved.)
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معلومات مُعتمدة: R01 GM086731 United States GM NIGMS NIH HHS; R37 GM026132 United States GM NIGMS NIH HHS; GM086731 United States GM NIGMS NIH HHS; GM026132 United States GM NIGMS NIH HHS; R01 GM026132 United States GM NIGMS NIH HHS
المشرفين على المادة: 0 (Schizosaccharomyces pombe Proteins)
9013-26-7 (Actomyosin)
EC 3.6.1.- (Myosin Type II)
تواريخ الأحداث: Date Created: 20140611 Date Completed: 20140729 Latest Revision: 20211021
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC4137230
DOI: 10.1016/j.devcel.2014.04.021
PMID: 24914559
قاعدة البيانات: MEDLINE
الوصف
تدمد:1878-1551
DOI:10.1016/j.devcel.2014.04.021