COVER This immunofluorescent microscopic image of mouse brain section shows the localization of molecular motor KIF17 (green) in the dendrites of nerve cells. KIF17 transports neurotransmitter receptors along microtubules from the cell body to the synapses formed with nerve axons (red), where they likely serve as raw material for the construction of new or enhanced synapses during learning. Nuclei of glia and nerve cells are stained blue. Image width, 300 mm. See page 1796 [Photo: M. Setou and N. Hirokawa]

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