Catalytic activity:GTP + H (2) O = GDP + phosphate. ,Function:Functions in mitochondrial and peroxisomal division probably by regulating membrane fission. Enzyme hydrolyzing GTP that oligomerizes to form ring-like structures and is able to remodel membranes. May also play a role on organelles of the secretory pathway. ,miscellaneous:Isoform 1 and isoform 2 inhibits peroxisomal division when overexpressed while isoform 3 and isoform 4 have no effect. ,PTM:Phosphorylated by GSK3B. ,similarity:Belongs to the dynamin family. ,similarity:Contains 1 GED domain. ,subcellular location:Mainly cytosolic. Also membrane-associated. Localizes to mitochondria at spots of division events. Associated with peroxisomal membranes , it is recruited in part by PEX11B. May also be associated with endoplasmic reticulum tubules and cytoplasmic vesicles and found to be perinuclear. ,subunit:Homotetramer; N-terminal part binds to the C-terminal part of another DNM1L. Can self-assemble in multimeric ring-like structures. Interacts with FIS1 (By similarity) . Interacts with GSK3B. ,tissue specificity:Ubiquitously expressed with highest levels found in skeletal muscles , heart , kidney and brain. Isoform 1 is brain-specific while isoform 3 and isoform 4 are predominantly expressed in testis and skeletal muscles respectively. Isoform 2 is weakly expressed in brain , heart and kidney and isoform 5 is dominantly expressed in liver , heart and kidney. ,
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