Schematic of Fluorescent Detector (IMAGE) Yale University Caption Schematic of fluorescent detector: When a target protein is folded correctly, "tags" come together so that the dye binds with high affinity and fluoresces brightly; misfolded proteins have low affinity for the dye. Credit Schepartz/Nature Chemical Biology Usage Restrictions with attribution 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.