A complex possessing an activity that couples ATP hydrolysis to the severing of microtubules; usually a heterodimer comprising a catalytic subunit (often 60kDa) and a regulatory subunit (often 80 kDa). [ http://www.ncbi.nlm.nih.gov/pubmed/10910766 ]
This is just here as a test because I lose it
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Consider also annotating to the molecular function term 'microtubule-severing ATPase activity ; GO:0008568'.