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Catalytic subunit of a complex which severs microtubules in an ATP-dependent manner. Microtubule severing may promote rapid reorganization of cellular microtubule arrays and the release of microtubules from the centrosome following nucleation. Microtubule release from the mitotic spindle poles may allow depolymerization of the microtubule end proximal to the spindle pole, leading to poleward microtubule flux and poleward motion of chromosome. Microtubule release within the cell body of neurons may be required for their transport into neuronal processes by microtubule-dependent motor proteins. This transport is required for axonal growth.
Gene References into Functions
CAMSAP3 precisely coordinates with dynein and katanin to regulate the microtubule detachment process. PMID: 28386021
Katanin Severing and Binding Microtubules Are Inhibited by Tubulin Carboxy Tails PMID: 26682813
analysis of spastin's microtubule-binding properties and comparison with katanin PMID: 23272056
Data propose a model in which spatial rearrangement of the p60 katanin N-terminal domain relative to the C-terminal AAA domain may be important for productive ATP hydrolysis towards MT-severing. PMID: 22325007
Katanin p60 was aberrantly expressed during prostate cancer progression. The elevated katanin p60 expression may contribute to cancer cell metastasis via a stimulatory effect on cell motility. PMID: 21681775
A common substrate recognition mode conserved between katanin p60 and VPS4 governs microtubule severing and membrane skeleton reorganization PMID: 20339000
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Subcellular Location
Cytoplasm. Midbody. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, spindle pole. Cytoplasm, cytoskeleton, spindle.