Centromere Structure (IMAGE) Stowers Institute for Medical Research Caption A novel microscopy approach -- fluorescence correlation spectroscopy coupled with calibrated imaging -- revealed the number of Cse4 molecules within single centromeric nucleosomes over the course of the cell cycle. Credit Courtesy of the Stowers Institute for Medical Research 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.