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Current Biology
Article
License: Elsevier Non-Commercial
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Current Biology
Article . 2006
License: Elsevier Non-Commercial
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Current Biology
Article . 2006 . Peer-reviewed
License: Elsevier Non-Commercial
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Current Biology
Article . 2006
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Rab35 Regulates an Endocytic Recycling Pathway Essential for the Terminal Steps of Cytokinesis

Authors: Kouranti, Ilektra; Sachse, Martin; Arouche, Nassim; Goud, Bruno; Echard, Arnaud;

Rab35 Regulates an Endocytic Recycling Pathway Essential for the Terminal Steps of Cytokinesis

Abstract

Cytokinesis is the final step of cell division and leads to the physical separation of the daughter cells. After the ingression of a cleavage membrane furrow that pinches the mother cell, future daughter cells spend much of the cytokinesis phase connected by an intercellular bridge. Rab proteins are major regulators of intracellular transport in eukaryotes, and here, we report an essential role for human Rab35 in both the stability of the bridge and its final abscission. We find that Rab35, whose function in membrane traffic was unknown, is localized to the plasma membrane and endocytic compartments and controls a fast endocytic recycling pathway. Consistent with a key requirement for Rab35-regulated recycling during cell division, inhibition of Rab35 function leads to the accumulation of endocytic markers on numerous cytoplasmic vacuoles in cells that failed cytokinesis. Moreover, Rab35 is involved in the intercellular bridge localization of two molecules essential for the postfurrowing steps of cytokinesis: the phosphatidylinositol 4,5-bis phosphate (PIP2) lipid and the septin SEPT2. We propose that the Rab35-regulated pathway plays an essential role during the terminal steps of cytokinesis by controlling septin and PIP2 subcellular distribution during cell division.

Keywords

Phosphatidylinositol 4,5-Diphosphate, Agricultural and Biological Sciences(all), Biochemistry, Genetics and Molecular Biology(all), Endocytosis, Phosphoric Monoester Hydrolases, Cell Line, rab GTP-Binding Proteins, Animals, Humans, CELLBIO, Drosophila, Transport Vesicles, Cytokinesis

  • BIP!
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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    341
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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 1%
    influence
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 1%
Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
341
Top 1%
Top 1%
Top 1%
hybrid