Every Atom Counts (IMAGE) European Molecular Biology Laboratory Caption Tailored parallel X-rays perfectly matching the dimensions of the protein crystals enabled the scientists to determine the proteasome structure in unprecedented detail (top right). They could show that a 7-ring is formed by the reaction of the inhibitor with the proteasome (bottom). This knowledge paves the way for the design of new therapeutics. Credit Hartmut Sebesse / Max Planck Institute for Biophysical Chemistry Usage Restrictions EMBL press and picture releases including photographs, graphics, movies and videos are copyrighted by EMBL. They may be freely reprinted and distributed for non-commercial use via print, broadcast and electronic media, provided that proper attribution to authors, photographers and designers is made. 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.