Effects of phosphorylation on Drp1 activation by its receptors, actin, and cardiolipin
Ao Liu,
Anna L. Hatch,
Henry N. Higgs
Abstract:Drp1 is a dynamin family GTPase that is required for mitochondrial and peroxisomal division, in which it oligomerizes into a ring and constricts the underlying membrane in a GTP hydrolysis-dependent manner. Oligomerization increases Drp1 GTPase activity through interactions between neighboring GTPase domains. In cells, Drp1 is regulated by several factors including Drp1 receptors, actin filaments, cardiolipin, and phosphorylation at two sites: S579 and S600. Phosphorylation of S579 is widely regarded as activa… Show more
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