Purdue University Protein Mapping (IMAGE) Purdue University Caption Purdue University researchers have come up with a novel way to do 3D mapping of proteins and their shapes. This image shows the mapping of protein 3D shapes. Each dot represents a protein shape. The distance of proteins in the map represents similarity of their shapes. Credit Purdue University/Daisuke Kihara 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.