Spastin is a dual-function enzyme that severs microtubules and promotes their regrowth to increase the number and mass of microtubules.

Kuo YW, Trottier O, Mahamdeh M, Howard J
Proc Natl Acad Sci U S A. 2019 Mar 19;116(12):5533-5541. doi: 10.1073/pnas.1818824116. Epub 2019 Mar 5. PubMed Article

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