Model (IMAGE) University of Münster Caption In the model: blue light triggers a special monooxygenase reaction in an enzyme. This kind of activation was hitherto unknown in enzymology. Credit Steffen L. Drees Usage Restrictions Please use this picture only in connection with the press release. 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.