MHC 1 (IMAGE) Rice University Caption An illustration shows a major histocompatibility (grey) protein encompassing a peptide drawn from a SARS-CoV virus (pink). The complex helps trigger the activation of T cells that are part of the immune system. Rice University researchers discovered a non-anchor binding residue in the peptide that could both contribute to binding and to the T-cell activation needed to defeat the virus. Credit Kavraki Lab/Rice University 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.