Dyn1 (Dynamin-1) is a 864-amino acid protein (~95kDa) belongs to the dynamin family. Dynamin-1 (neuron-specific), dynamin-2 (ubiquitously e, Xenopus/Amphibian,pressed), and dynamin-3 (e, Xenopus/Amphibian,pressed only in the testis, brain and lungs), constitute the dynamin family. Members of the dynamin family are GPTases,Mouse,icrotubule-associated proteins which are involved in endocytosis, synaptic transmission and neurogenesis. Dynamin-1 is phosphorylated in nerve terminals e, Xenopus/Amphibian,clusively in the cytosolic compartment and in vitro by protein kinase C. Dynamin-1 is a large GTPase enzyme required in membrane constriction and fission during multiple forms of endocytosis. Dynamin-1 is also a key molecule required for the recycling of synaptic vesicles in neurons, and it has been known that dynamin-1 gene e, Xenopus/Amphibian,pression is induced during neuronal differentiation.