The Movement of MCAK Molecules (IMAGE) Max-Planck-Gesellschaft Caption The movement of MCAK molecules (green) over time, along a microtubule (red). 20 points in time, from top to bottom. Credit Max Planck Institute of Molecular Cell Biology and Genetics 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.