Human cell culture (IMAGE) University of Tokyo Caption Researchers revealed the regulatory mechanism of a specific protein, TRBP, that plays a key role in balancing the immune response triggered by viral infections in mammal cells. Credit Tomoko Takahashi (Saitama University/The University of Tokyo) and Kumiko Ui-Tei (The University of Tokyo) Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original 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.