Fig. 2 (IMAGE) Osaka University Caption Emission (solid line) and excitation (dashed line) spectrum of sfGFP, Sirius, and Sumire. Credit Kazunori Sugiura Usage Restrictions No restrictions 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.