Transport of Microtubules (IMAGE) Max-Planck-Gesellschaft Caption Artist's impression of transport of microtubules on a surface full of kinesin motor proteins. In the original publication, a precise distance of 17 nanometers between microtubules and the surface was measured for this process. Credit Jacob Kerssemakers Usage Restrictions None License Licensed content 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.