peptide-bound opioid receptor (IMAGE) University of North Carolina Health Care Caption Alignment of peptide-bound opioid receptors reveals structural features, such as steric effects, that contribute to the subtype-selective binding and functional outcomes observed in biochemical assays. Credit Roth Lab, UNC School of Medicine Usage Restrictions Credit properly 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.