Related Experiment Video
Updated: Mar 21, 2026

Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells
Published on: February 2, 2022
Small Molecule Approach to Study the Function of Mitotic Kinesins
Naowras Al-Obaidi1, Johanna Kastl1, Thomas U Mayer2
1Department of Biology, Konstanz Research School Chemical Biology (KoRS-CB), University of Konstanz, Universitätsstr. 10, Konstanz, 78457, Germany.
Identifying specific small molecule inhibitors for kinesin motor proteins is crucial for cell biology research. This study presents high-throughput screening methods to find and validate specific kinesin inhibitors, aiding functional dissection.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Kinesin motor proteins are essential for cell division (M-phase), ensuring accurate chromosome segregation.
- Human kinesins perform diverse roles, including microtubule dynamics and cargo transport, making functional analysis challenging.
Purpose of the Study:
- To present methods for identifying specific small molecule inhibitors of kinesin motor proteins.
- To address the challenge of functional dissection of individual kinesins.
Main Methods:
- Utilized a protein-based, high-throughput screen to identify inhibitors of kinesin ATPase activity.
- Developed protocols for secondary screens to validate inhibitor specificity.
Main Results:
- Established a screening strategy to identify potential kinesin inhibitors.
- Provided guidelines for validating compound specificity.
Conclusions:
- High-throughput screening is effective for discovering specific small molecule inhibitors of kinesins.
- Validated inhibitors are essential tools for dissecting kinesin functions in M-phase.
Related Concept Videos
The Mitotic Spindle
The bipolar configuration of the mitotic spindle facilitates chromosomal segregation, preparing the cell for division. One mechanism that ensures...
The Movement of Organelles and Vesicles
Destabilization of Microtubules
Studying the Cytoskeleton
Microtubule Associated Motor Proteins
Forces Acting on Chromosomes
Microtubules and motor proteins exert two types of forces on...

