Protein Interaction (IMAGE) Virginia Tech Caption Nuclear magnetic resonance-derived images depict the structures of proteins Tom1 (green) and Tollip (red). These interactive regions are required for both proteins to achieve their cooperative function. Credit Daniel Capelluto/Virginia Tech 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.