HIV Capsid Protein (IMAGE) University of Missouri-Columbia Caption The HIV capsid protein plays a critical role in the virus' life cycle. Mizzou researchers recently developed the most complete model yet of this vital protein. Credit Karen Kirby and Anna Gres, Bond Life Sciences Center 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.