Abstract:Dendritic spines are signaling microcompartments that serve as the primary site of synapse formation in neurons. Actin assembly and myosin 2 contractility play major roles in the maturation of spines from filopodial precursors, as well as in the subsequent, activitydependent changes in spine morphology that underly learning and memory. Myosin 18A is a myosin 2-like protein conserved from flies to man that lacks motor activity, is sub-stochiometric to myosin 2, and co-assembles with myosin 2 to make mixed filam… Show more
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