Green Fluorescence Protein (IMAGE) DOE/Pacific Northwest National Laboratory Caption Ultraviolet light on Escherichia coli fuses with Green Fluorescence Protein to study the localization of proteins in living cells. Through the use of GFP, promoters/genes are localized which specific toxic metals require to aid in reduction of metals and radionuclides. Credit Courtesy of Pacific Northwest National Laboratory. Usage Restrictions Image courtesy of Pacific Northwest National Laboratory. Use of image shall not claim any expressed or implied affiliation with, or endorsement by, Battelle Memorial Institute, Pacific Northwest National Laboratory or the U.S. Department of Energy. 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.