منابع مشابه
Cytokinesis: Centralspindlin Moonlights as a Membrane Anchor
The hardest working complex in animal cell division has a new gig. This extraordinary machine, the centralspindlin complex, works overtime, contributing to nearly every step in cytokinesis. It has now been shown to stabilize an association between the plasma membrane and the midbody microtubules prior to abscission.
متن کاملAn ECT2–centralspindlin complex regulates the localization and function of RhoA
In anaphase, the spindle dictates the site of contractile ring assembly. Assembly and ingression of the contractile ring involves activation of myosin-II and actin polymerization, which are triggered by the GTPase RhoA. In many cells, the central spindle affects division plane positioning via unknown molecular mechanisms. Here, we dissect furrow formation in human cells and show that the RhoGEF...
متن کاملAurora B and 14-3-3 Coordinately Regulate Clustering of Centralspindlin during Cytokinesis
Centralspindlin is essential for the formation of microtubule bundle structures and the equatorial recruitment of factors critical for cytokinesis. Stable accumulation of centralspindlin at the spindle midzone requires its multimerization into clusters and Aurora B kinase activity, which peaks at the central spindle during anaphase. Although Aurora B phosphorylates centralspindlin directly, how...
متن کاملDirect interaction between centralspindlin and PRC1 reinforces mechanical resilience of the central spindle
During animal cell division, the central spindle, an anti-parallel microtubule bundle structure formed between segregating chromosomes during anaphase, cooperates with astral microtubules to position the cleavage furrow. Because the central spindle is the only structure linking the two halves of the mitotic spindle, it is under mechanical tension from dynein-generated cortical pulling forces, w...
متن کاملFinding Cells, Finding Molecules, Finding Patterns
Many modern molecular labelling techniques result in bright point signals. Signals from molecules that are detected directly inside a cell can be captured by fluorescence microscopy. Signals representing different types of molecules may be randomly distributed in the cells or show systematic patterns, indicating that the corresponding molecules have specific, non-random localisations and functi...
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ژورنال
عنوان ژورنال: Developmental Cell
سال: 2011
ISSN: 1534-5807
DOI: 10.1016/j.devcel.2010.11.022