PD13R (IMAGE) Texas Biomedical Research Institute Caption The small molecule PD13R (magenta) interacting with the dopamine D3 (grey) and D2 (purple) receptors cryo-EM structures, as predicted by RhodiumTM. Credit SwRI Usage Restrictions Free to reuse with caption and credit. 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.