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Updated: Mar 31, 2026

Visualizing Actin and Microtubule Coupling Dynamics In Vitro by Total Internal Reflection Fluorescence TIRF Microscopy
Published on: July 20, 2022
In Vitro Biochemical Characterization of Cytokinesis Actin-Binding Proteins
Dennis Zimmermann1, Alisha N Morganthaler1, David R Kovar2,3
1Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, IL, 60637, USA.
Abstract:
Characterizing the biochemical and biophysical properties of purified proteins is critical to understand the underlying molecular mechanisms that facilitate complicated cellular processes such as cytokinesis. Here we outline in vitro assays to investigate the effects of cytokinesis actin-binding proteins on actin filament dynamics and organization. We describe (1) multicolor single-molecule TIRF microscopy actin assembly assays, (2) "bulk" pyrene actin assembly/disassembly assays, and (3) "bulk" sedimentation actin filament binding and bundling assays.
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