katanin-p80 Proteins and Enzymes

Microtubules, polymers of alpha and beta tubulin subunits, form the mitotic spindle of a dividing cell and help toorganize membranous organelles during interphase. Katanin is a heterodimer that consists of a 60 kDa ATPase (p60subunit A 1) and an 80 kDa accessory protein (p80 subunit B 1). The p60 subunit acts to sever and disassemblemicrotubules, while the p80 subunit targets the enzyme to the centrosome. Katanin is a member of the AAA family ofATPases. (provided by RefSeq)