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Updated: Jul 6, 2025

Motility of Single Molecules and Clusters of Bi-Directional Kinesin-5 Cin8 Purified from S. cerevisiae Cells
Published on: February 2, 2022
Heterogeneous distribution of kinesin-streptavidin complexes revealed by Mass Photometry
Jing Xu1, Nathaniel J S Brown2, Yeonee Seol3
1Department of Physics, University of California, Merced, CA 95343, USA.
None:
Kinesin-streptavidin complexes are widely used in microtubule-based active-matter studies. The stoichiometry of the complexes is empirically tuned but experimentally challenging to determine. Here, mass photometry measurements reveal heterogenous distributions of kinesin-streptavidin complexes. Our binding model indicates that heterogeneity arises from both the kinesin-streptavidin mixing ratio and the kinesin-biotinylation efficiency.
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