'Cargo' Traveling Through a Neuron (video) University at Buffalo Share Print E-Mail Loading video... Caption Kinesin and dynein motors carrying the Alzheimer's protein APP travel on microtubule tracks in a single axon in the nerve of a fruit fly larva. This video shows the motors' normal behavior; when the level of presenilin was reduced in a study, the motors increased their velocity. Credit Shermali Gunawardena Usage Restrictions This video may only be used in conjunction with news reports discussing the research in the associated press release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.