LIS1 is an essential cofactor for the assembly of the cytoplasmic dynein transport machinery. How LIS1 binding affects dynein motility was unclear. Single-molecule experiments reveal that Pac1 (the yeast homolog of LIS1) binding reduces dynein speed by slowing its detachment from microtubules and does not disrupt the mechanism by which it generates force.
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References
Markus, S. M., Marzo, M. G. & McKenney, R. J. New insights into the mechanism of dynein motor regulation by lissencephaly-1. eLife 9, 59737 (2020). A review that presents how Lis1 influences dynein-mediated transport.
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Marzo, M. G., Griswold, J. M. & Markus, S. M. Pac1/LIS1 stabilizes an uninhibited conformation of dynein to coordinate its localization and activity. Nat. Cell Biol. 22, 559–569 (2020). This paper reports that Lis1 slows dynein by tethering it to the microtubule.
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This is a summary of: Kusakci, E. et al. Lis1 slows force-induced detachment of cytoplasmic dynein from microtubules. Nat. Chem. Biol. https://doi.org/10.1038/s41589-023-01464-6 (2023).
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LIS1 (Pac1) binding slows dissociation of dynein from microtubules. Nat Chem Biol 20, 408–409 (2024). https://doi.org/10.1038/s41589-023-01465-5
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DOI: https://doi.org/10.1038/s41589-023-01465-5