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Related Experiment Videos

The Rab6-binding kinesin, Rab6-KIFL, is required for cytokinesis.

E Hill1, M Clarke, F A Barr

  • 1Beatson Institute for Cancer Research, and University of Glasgow Institute of Biological and Life Sciences, CRC-Beatson Laboratories, Garscube Estate, Switchback Road, Bearsden, Glasgow G61 1BD, UK.

The EMBO Journal
|November 4, 2000
PubMed
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Rab6-KIFL, a kinesin protein, is crucial for cell division. It plays a vital role in cytokinesis by ensuring proper cleavage furrow formation, preventing cell death and binucleation.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Rab6 is a small GTPase regulating membrane traffic via the Golgi apparatus.
  • Rab6-KIFL is a kinesin protein identified through its interaction with Rab6.

Purpose of the Study:

  • To investigate the function of Rab6-KIFL in cellular processes.
  • To determine the role of Rab6-KIFL during cell division and cytokinesis.

Main Methods:

  • Two-hybrid screening to identify interacting proteins.
  • Immunofluorescence microscopy to observe protein localization during mitosis.
  • Overexpression and antibody microinjection experiments.
  • Time-lapse microscopy to analyze cell division dynamics.

Main Results:

Related Experiment Videos

  • Rab6-KIFL accumulates in mitotic cells, localizing to the spindle midzone, cleavage furrow, and midbody.
  • Overexpression of Rab6-KIFL leads to cell division defects and cell death.
  • Inhibition of Rab6-KIFL function results in binucleate cells due to failed cytokinesis.

Conclusions:

  • Endogenous Rab6-KIFL is essential for proper cytokinesis and cleavage furrow formation.
  • Rab6-KIFL has a dual role, participating in both membrane traffic and cell division.