Cytochrome bd-I (IMAGE) University of Kent Caption Cytochrome bd-I tagged with Green Fluorescent Protein can be visualized in the membrane of <em>E. coli</em>. Credit Dr Mark Shepherd Usage Restrictions None 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.