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Uniform transport of NgCAM-GFP

A 7 day old neuron expressing the membrane protein NgCAM tagged with GFP. The video shows a rapid playback (6X real time) of a 30 second recording. NgCAM-GFP vesicles move bidirectionally in and out of both the axon and the dendrites at an average rate of 1um/sec. However, NgCAM is polarized to the axonal cell surface.