Cryoelectron Tomography Image (IMAGE) Rice University Caption A cryoelectron tomography image of the infectious salmon anemia virus shows details of its structure, including the inner matrix protein shell. Rice University scientists have now obtained the complete structure of proteins that make up the inner shell. Credit Tao Laboratory/Rice University Usage Restrictions For news reporting purposes only. 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.