Microtubule structure and D2 binding (IMAGE) School of Science, The University of Tokyo Caption As the expansion rate increases, the D2 region of CAMSAP3 shows a much higher affinity to microtubules. So, the D2 region can identify the expanded microtubules. Credit Liu and Shima et al 2023 Usage Restrictions Credit must be given to the creator. License CC BY 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.