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Updated: Jun 16, 2026
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Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells
Published on: February 2, 2022
Mitotic functions of kinesin-5
Nick P Ferenz1, Alyssa Gable, Pat Wadsworth
1Department of Biology, University of Massachusetts, Amherst, Morrill Science Center, Amherst, MA 01003, United States.
Seminars in Cell & Developmental Biology
|January 30, 2010
Summary
Kinesin-5 motors are essential for cell division by maintaining spindle bipolarity. Their dynamic interactions with microtubules and other proteins are crucial for proper cell division in eukaryotes.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Molecular motor proteins, including kinesin-5, are vital for eukaryotic cell division.
- Kinesin-5 motors generate outward forces essential for spindle bipolarity and microtubule dynamics.
- Cell-cycle-dependent phosphorylation regulates kinesin-5 localization to the mitotic spindle.
Purpose of the Study:
- To investigate the dynamic behavior of kinesin-5 motors within the mitotic spindle.
- To understand the interactions between kinesin-5 motors, microtubules, and other spindle proteins.
- To broaden the understanding of kinesin-5 motor functions during cell division.
Main Methods:
- Live-cell imaging to observe kinesin-5 motor dynamics.
- Biochemical assays to study protein-protein interactions.
- Genetic manipulation to analyze the effects of kinesin-5 alterations.
Main Results:
- Kinesin-5 motors exhibit high dynamism within the mitotic spindle.
- Phosphorylation patterns influence kinesin-5 motor localization during the cell cycle.
- Specific interactions with microtubules and other spindle components were identified.
Conclusions:
- Kinesin-5 motors are highly dynamic and essential for maintaining spindle structure and function.
- Understanding kinesin-5 interactions provides insights into cell division regulation.
- Further research into these interactions will reveal additional roles for kinesin-5 in cell division.
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