Assertion: microtubule | /r/CapableOf | sever by the protein katanin
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Source sentences:
text: We discovered a mechanism, based on microtubule severing by the protein katanin, that reorients cortical microtubule arrays in response to perception of blue light.
text: After microtubules nucleate as branches on existing microtubules, the minus ends of microtubules are often severed by the microtubule severing protein katanin (Nakamura et al., 2010).
text: We discovered that microtubule severing by the protein katanin plays a crucial and unexpected role in the reorientation of cortical arrays, as triggered by blue light.